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Posted to commits@pulsar.apache.org by pe...@apache.org on 2022/12/05 03:51:53 UTC
[pulsar] branch master updated: [cleanup][doc] Delete release-notes.md (#18722)
This is an automated email from the ASF dual-hosted git repository.
penghui pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/pulsar.git
The following commit(s) were added to refs/heads/master by this push:
new e2e8c32348a [cleanup][doc] Delete release-notes.md (#18722)
e2e8c32348a is described below
commit e2e8c32348a0e3b469fd53d7e92c5664fb4f4810
Author: tison <wa...@gmail.com>
AuthorDate: Mon Dec 5 11:51:48 2022 +0800
[cleanup][doc] Delete release-notes.md (#18722)
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site2/website/release-notes.md | 4526 ----------------------------------------
1 file changed, 4526 deletions(-)
diff --git a/site2/website/release-notes.md b/site2/website/release-notes.md
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-
-## Apache Pulsar Release Notes
-
-### 2.10.0
-#### 2022-04-13
-
-### Important notice
-- Remove -XX:-ResizePLAB JVM option which degrades performance on JDK11 [#12940](https://github.com/apache/pulsar/pull/12940)
-- Enable TCP keepAlive flag on the sockets [#12982](https://github.com/apache/pulsar/pull/12982)
-- Reduce the time it takes for namespace bundle unloading to time out [#12995](https://github.com/apache/pulsar/pull/12995)
-- Align configurations defaults between default file and Java object (broker.conf, proxy.conf, websocket.conf) [#13272](https://github.com/apache/pulsar/pull/13272)
-- [PIP 118] Do not restart brokers when ZooKeeper session expires as default [#13341](https://github.com/apache/pulsar/pull/13341)
-- [PIP 119] Enable consistent hashing by default on KeyShared subscriptions dispatcher [#13352](https://github.com/apache/pulsar/pull/13352)
-- [PIP 120] Enable client memory limit controller by default [#13344](https://github.com/apache/pulsar/pull/13344)
-- Make Docker images non-root, by default, and OpenShift compliant [#13376](https://github.com/apache/pulsar/pull/13376)
-- [PIP 122] Change loadBalancer default loadSheddingStrategy to ThresholdShedder [#13733](https://github.com/apache/pulsar/pull/13733)
-- Fix netcat returning early for probe [#14088](https://github.com/apache/pulsar/pull/14088)
-
-### PIPs
-- [PIP 79] Add lazy-loading feature to PartitionedProducer [#10279](https://github.com/apache/pulsar/pull/10279)
-- [PIP 84] Pulsar client: Redeliver command add epoch [#10478](https://github.com/apache/pulsar/pull/10478)
-- [PIP 86] Pulsar Functions: Preload and release external resources [#13205](https://github.com/apache/pulsar/pull/13205)
-- [PIP 92] Topic policy across multiple clusters [#12517](https://github.com/apache/pulsar/pull/12517)
-- [PIP 104] Add new consumer type: TableView [#12838](https://github.com/apache/pulsar/pull/12838)
-- [PIP-105] Support pluggable entry filter in Dispatcher [#12869](https://github.com/apache/pulsar/pull/12869) [#12970](https://github.com/apache/pulsar/pull/12970) [#12979](https://github.com/apache/pulsar/pull/12979)
-- [PIP 106] Broker extensions to provide operators of enterprise-wide clusters better control and flexibility [#12536](https://github.com/apache/pulsar/pull/12536)
-- [PIP 107] Introduce chunk message ID [#12403](https://github.com/apache/pulsar/pull/12403)
-- [PIP 110] Support Topic metadata - PART-1 create topic with properties [#12818](https://github.com/apache/pulsar/pull/12818)
-- [PIP 121] Pulsar cluster level auto failover on client side [#13316](https://github.com/apache/pulsar/pull/13316)
-- [PIP-124] Create init subscription before sending message to DLQ [#13355](https://github.com/apache/pulsar/pull/13355)
-- [PIP-130] Apply redelivery backoff policy for ack timeout [#13707](https://github.com/apache/pulsar/pull/13707)
-- [PIP 131] Resolve produce chunk messages failed when topic level maxMessageSize is set [#13599](https://github.com/apache/pulsar/pull/13599)
-- [PIP 135] Include MetadataStore backend for Etcd [#13225](https://github.com/apache/pulsar/pull/13225)
-
-### Broker
-- [PIP 45] Pluggable metadata interface
- - Add BookKeeper metadata adapter based on MetadataStore [#12770](https://github.com/apache/pulsar/pull/12770)
- - Add Rocksdb metadata store [#12776](https://github.com/apache/pulsar/pull/12776)
- - Convert BookieRackAffinityMapping to use MetadataStore [#12841](https://github.com/apache/pulsar/pull/12841)
- - Allow to configure metadata store URL in broker.conf [#13077](https://github.com/apache/pulsar/pull/13077)
- - Remove old ZK caches implementations [#13075](https://github.com/apache/pulsar/pull/13075)
- - Allow to start bookie with Pulsar metadata store backend [#13296](https://github.com/apache/pulsar/pull/13296)
- - Remove ZooKeeperClientFactory [#13303](https://github.com/apache/pulsar/pull/13303)
- - Use reference counting in RocksDB metadata store [#13309](https://github.com/apache/pulsar/pull/13309)
- - Allow configuring metadata store URL in proxy.conf [#13777](https://github.com/apache/pulsar/pull/13777)
- - Allow configuring metadata store URL in functions_worker.yml [#13782](https://github.com/apache/pulsar/pull/13782)
- - Add configuration metadata store url setting in WebSocket [#13786](https://github.com/apache/pulsar/pull/13786)
- - Allow configuring configurationMetadataStore when initializing cluster metadata [#13889](https://github.com/apache/pulsar/pull/13889)
- - Using the consistent metadata store scheme name [#13937](https://github.com/apache/pulsar/pull/13937)
- - Allow configuring `metadataStoreUrl` in `pulsar-perf managed-ledger` [#14145](https://github.com/apache/pulsar/pull/14145)
- - Deprecate zookeeper settings [#14147](https://github.com/apache/pulsar/pull/14147)
- - Fix metadata cache inconsistency on doing refresh [#14283](https://github.com/apache/pulsar/pull/14283)
-- Support broker level dispatch rate limiter [#11325](https://github.com/apache/pulsar/pull/11325)
-- Support setting geo-replication clusters on topic level [#12136](https://github.com/apache/pulsar/pull/12136)
-- Add Multi-tiered storage key to broker.conf [#12173](https://github.com/apache/pulsar/pull/12173)
-- Support configuration to rate-limit dispatching on batch message [#12294](https://github.com/apache/pulsar/pull/12294)
-- Support splitting the largest bundle of the namespace [#12361](https://github.com/apache/pulsar/pull/12361)
-- Support creating a subscription by specifying the earliest or latest position [#12872](https://github.com/apache/pulsar/pull/12872)
-- Support roll-over ledgers for inactive topics [#13073](https://github.com/apache/pulsar/pull/13073)
-- Support graceful shutdown for Broker [#14114](https://github.com/apache/pulsar/pull/14114)
-- Transparent batching of ZK operations [#13043](https://github.com/apache/pulsar/pull/13043)
-- Add uniform load shedder strategy to distribute traffic uniformly across brokers [#12902](https://github.com/apache/pulsar/pull/12902)
-- Provide option to split bundle based on load [#12378](https://github.com/apache/pulsar/pull/12378)
-- Use AuthorizationService#grantPermissionAsync to grant topic permission [#12515](https://github.com/apache/pulsar/pull/12515)
-- Only store authentication data after authentication is complete [#12077](https://github.com/apache/pulsar/pull/12077)
-- Allow to have different instances LocalMemoryMetadataStore that share the same state [#12390](https://github.com/apache/pulsar/pull/12390)
-- Allow `GetTopicsOfNamespace` op with `consume` permission [#12600](https://github.com/apache/pulsar/pull/12600)
-- Add local filesystem backend for package manager [#12708](https://github.com/apache/pulsar/pull/12708)
-- Add stop replicator producer logic when start replicator cluster failed [#12724](https://github.com/apache/pulsar/pull/12724)
-- Apply PolicyHierarchyValue to inactiveTopicPolicies [#12687](https://github.com/apache/pulsar/pull/12687)
-- Fix can not get leader broker in follower brokers [#11353](https://github.com/apache/pulsar/pull/11353)
-- Fix broker gc log options [#11285](https://github.com/apache/pulsar/pull/11285)
-- Fix NPE of ZkBookieRackAffinityMapping [#11947](https://github.com/apache/pulsar/pull/11947)
-- Fix prefix setting in JWT authn and avoid multi calls for the getProperty [#12132](https://github.com/apache/pulsar/pull/12132)
-- Fix missed check exit code of stop before calling start [#12368](https://github.com/apache/pulsar/pull/12368)
-- Fix getting children of parent nodes in LocalMemoryMetadataStore [#12491](https://github.com/apache/pulsar/pull/12491)
-- Fix collection get bug in ResourceGroupService [#12499](https://github.com/apache/pulsar/pull/12499)
-- Fix deadlock in metadata-store callback thread [#12753](https://github.com/apache/pulsar/pull/12753)
-- Improve exceptions thrown when handling the schema resource [#12155](https://github.com/apache/pulsar/pull/12155)
-- Trim topic name [#12453](https://github.com/apache/pulsar/pull/12453)
-- Avoid unnecessary recalculation of maxSubscriptionsPerTopic in AbstractTopic [#12658](https://github.com/apache/pulsar/pull/12658)
-- Optimize isValidPath check in MetadataStore [#12663](https://github.com/apache/pulsar/pull/12663)
-- Close connection after receiving unexpected SendCommand [#12780](https://github.com/apache/pulsar/pull/12780)
-- Ensure cache is refreshed (and not just invalidated) after a store write [#12788](https://github.com/apache/pulsar/pull/12788)
-- Optimize topicMaxMessageSize with topic local cache. [#12830](https://github.com/apache/pulsar/pull/12830)
-- Optimize blocking backlogQuotaCheck to non-blocking in ServerCnx#handleProducer [#12874](https://github.com/apache/pulsar/pull/12874)
-- Only refresh metadata if path is already in cache after write. [#12896](https://github.com/apache/pulsar/pull/12896)
-- Optimize put and get methods in AbstractMetadataStore [#12916](https://github.com/apache/pulsar/pull/12916)
-- Fix zk-node leak of admin path [#12972](https://github.com/apache/pulsar/pull/12972)
-- Optimize TopicPolicy#deduplicationEnabled with HierarchyTopicPolicies [#13000](https://github.com/apache/pulsar/pull/13000)
-- Fix race condition in FaultInjectionMetadataStore#programmedFailure [#13007](https://github.com/apache/pulsar/pull/13007)
-- Fix usage of PULSAR_EXTRA_OPTS/BOOKIE_EXTRA_OPTS in startup scripts [#13025](https://github.com/apache/pulsar/pull/13025)
-- Consider topics in pulsar/system namespace as system topics [#13050](https://github.com/apache/pulsar/pull/13050)
-- Fix wrong result for looking up a non-exist topic by rest api [#13055](https://github.com/apache/pulsar/pull/13055)
-- Key_Shared dispatcher with no connected consumers should be recreated if allowOutOfOrderDelivery changes [#13063](https://github.com/apache/pulsar/pull/13063)
-- Make load-balancer config dynamic for the runtime tuning [#13074](https://github.com/apache/pulsar/pull/13074)
-- Optimize TopicPolicy#maxProducersPerTopic with HierarchyTopicPolicies [#13082](https://github.com/apache/pulsar/pull/13082)
-- Load balancer supports disabling max-session for bundle split [#13108](https://github.com/apache/pulsar/pull/13108)
-- Optimize TopicPolicies#subscriptionTypesEnabled with HierarchyTopicPolicies [#13121](https://github.com/apache/pulsar/pull/13121)
-- Log thread dump when Zookeeper session expires to help detect possible deadlocks [#13124](https://github.com/apache/pulsar/pull/13124)
-- Add removeMaxConsumersPerSubscription method for v1 namespace [#13192](https://github.com/apache/pulsar/pull/13192)
-- Fixe error value for 1MB in metrics [#13213](https://github.com/apache/pulsar/pull/13213)
-- Optimize TopicPolicies#messageTTLInSeconds with HierarchyTopicPolicies [#13241](https://github.com/apache/pulsar/pull/13241)
-- Add schema compatibility strategy on topic level [#13297](https://github.com/apache/pulsar/pull/13297)
-- Optimize TopicPolicies#maxConsumerPerTopic with HierarchyTopicPolicies [#13361](https://github.com/apache/pulsar/pull/13361)
-- Optimize TopicPolicies#replicationClusters with HierarchyTopicPolicies [#13495](https://github.com/apache/pulsar/pull/13495)
-- Fix compatibility issue with other metadata store implementations in resources [#13394](https://github.com/apache/pulsar/pull/13394)
-- Fix race condition in stopping replicator while it is starting [#13412](https://github.com/apache/pulsar/pull/13412)
-- Support backlog quota across multiple clusters [#13445](https://github.com/apache/pulsar/pull/13445)
-- Return null instead of RestException when getting bookieAffinityGroup [#13462](https://github.com/apache/pulsar/pull/13462)
-- Fix failed to get Partitioned metadata for health checking [#13525](https://github.com/apache/pulsar/pull/13525)
-- Optimize TopicPolicies#maxConsumersPerSubscription with HierarchyTopicPolicies [#13548](https://github.com/apache/pulsar/pull/13548)
-- Fix raw use of generic types in OwnershipCache [#13592](https://github.com/apache/pulsar/pull/13592)
-- Optimize TopicPolicies#maxUnackedMessagesOnConsumer with HierarchyTopicPolicies [#13618](https://github.com/apache/pulsar/pull/13618)
-- Optimize TopicPolicies#delayedDelivery Enabled and TickTimeMillis with HierarchyTopicPolicies [#13649](https://github.com/apache/pulsar/pull/13649)
-- Optimize TopicPolicies#compactionThreshold with HierarchyTopicPolicies [#13710](https://github.com/apache/pulsar/pull/13710)
-- Add deleteSubscriptionDispatchRate method for v1 namespace [#13711](https://github.com/apache/pulsar/pull/13711)
-- Fix NPE of checkReplication [#13720](https://github.com/apache/pulsar/pull/13720)
-- Optimize deduplicationSnapshotIntervalSeconds with HierarchyTopicPolicies [#13769](https://github.com/apache/pulsar/pull/13769)
-- Use shared executors for broker and geo-replication clients [#13839](https://github.com/apache/pulsar/pull/13839)
-- Fix call sync method in async rest api for
- - for internalDeletePartitionedTopic [#13805](https://github.com/apache/pulsar/pull/13805)
- - for internalCreateSubscription. [#13873](https://github.com/apache/pulsar/pull/13873)
- - for internalGetBacklogSizeByMessageId [#13871](https://github.com/apache/pulsar/pull/13871)
- - for internalTriggerCompaction [#13853](https://github.com/apache/pulsar/pull/13853)
- - for internalGetManagedLedgerInfo [#13847](https://github.com/apache/pulsar/pull/13847)
- - for internalGetSubscriptions [#13846](https://github.com/apache/pulsar/pull/13846)
- - for internalUnloadTopic [#13845](https://github.com/apache/pulsar/pull/13845)
- - for internalGetLastMessageId [#13882](https://github.com/apache/pulsar/pull/13882)
- - for internalExpireMessagesByTimestamp [#13880](https://github.com/apache/pulsar/pull/13880)
- - for internalResetCursorOnPosition [#13879](https://github.com/apache/pulsar/pull/13879)
- - for internalExpireMessagesByPosition [#13878](https://github.com/apache/pulsar/pull/13878)
- - for internalGetMessageById. [#13876](https://github.com/apache/pulsar/pull/13876)
- - for internalSetReplicatedSubscriptionStatus [#13887](https://github.com/apache/pulsar/pull/13887)
- - for internalGetPartitionedStats [#13886](https://github.com/apache/pulsar/pull/13886)
- - for onPoliciesUpdate method [#13885](https://github.com/apache/pulsar/pull/13885)
- - for internalGetPartitionedStatsInternal [#13884](https://github.com/apache/pulsar/pull/13884)
- - for internalTerminatePartitionedTopic [#13890](https://github.com/apache/pulsar/pull/13890)
- - for internalSkipAllMessages [#13901](https://github.com/apache/pulsar/pull/13901)
- - for preValidation [#13962](https://github.com/apache/pulsar/pull/13962)
- - for internalSetReplicationClusters and internalRemoveReplicationClusters [#13961](https://github.com/apache/pulsar/pull/13961)
-- Make PulsarAuthorizationProvider#grantPermissionAsync actually async [#13897](https://github.com/apache/pulsar/pull/13897)
-- Fix no value present when updating dispatch rate [#13900](https://github.com/apache/pulsar/pull/13900)
-- Optimize retentionPolicies with HierarchyTopicPolicies [#13909](https://github.com/apache/pulsar/pull/13909)
-- Improve 403 response message wih consume permission on namespace [#13912](https://github.com/apache/pulsar/pull/13912)
-- Fix arithmetic exception for uniform load shedder [#13914](https://github.com/apache/pulsar/pull/13914)
-- Add threshold for each unload round for uniform load shedder [#13915](https://github.com/apache/pulsar/pull/13915)
-- Fix call sync method in async rest api for internalDeleteSubscription #13884 [#13917](https://github.com/apache/pulsar/pull/13917)
-- Change ``BrokersBase`` api ``getActiveBrokers`` and ``getLeaderBroker`` to pure async. [#13935](https://github.com/apache/pulsar/pull/13935)
-- Do not create missing topic when loading namespace [#13948](https://github.com/apache/pulsar/pull/13948)
-- Only reply to client when code completes producerFuture [#13949](https://github.com/apache/pulsar/pull/13949)
-- Improve error logging for topic not found [#13950](https://github.com/apache/pulsar/pull/13950)
-- Make validateTenantOperation method async in PulsarWebResource [#14008](https://github.com/apache/pulsar/pull/14008)
-- Optimize maxUnackedMessagesOnSubscription with HierarchyTopicPolicies [#14011](https://github.com/apache/pulsar/pull/14011)
-- Set default value of applied to false in getSchemaCompatibilityStrategy [#14012](https://github.com/apache/pulsar/pull/14012)
-- Make validateTopicPolicyOperation method async in PulsarWebResource [#14024](https://github.com/apache/pulsar/pull/14024)
-- Fix producerFuture.completeExceptionally not called before sendErrorResponse [#14025](https://github.com/apache/pulsar/pull/14025)
-- Make triggerOffload method async [#14027](https://github.com/apache/pulsar/pull/14027)
-- Make offloadStatus method async [#14029](https://github.com/apache/pulsar/pull/14029)
-- Make validateNamespacePolicyOperation method async in PulsarWebResource [#14033](https://github.com/apache/pulsar/pull/14033)
-- Make internalSkipMessages method async [#14045](https://github.com/apache/pulsar/pull/14045)
-- Make PersistentTopicsBase#internalSetBacklogQuota async [#14051](https://github.com/apache/pulsar/pull/14051)
-- Adjust the validation for policy schemaCompatibilityStrategy [#14061](https://github.com/apache/pulsar/pull/14061)
-- Remove Persistent Topics v3 API - use custom media type instead [#14117](https://github.com/apache/pulsar/pull/14117)
-- Fix race condition in PulsarLedgerIdGenerator#generateShortLedgerId [#14118](https://github.com/apache/pulsar/pull/14118)
-- Optimize topic policy with HierarchyTopicPolicies about subscriptionDispatchRate [#14151](https://github.com/apache/pulsar/pull/14151)
-- Make `BrokerBase#deleteDynamicConfiguration` to pure async method [#14163](https://github.com/apache/pulsar/pull/14163)
-- Set default value of applied to false on topic policy [#14181](https://github.com/apache/pulsar/pull/14181)
-- Change broker producer fence log level [#14196](https://github.com/apache/pulsar/pull/14196)
-- Remove duplicated filter for UniformLoadShedder#findBundlesForUnloading [#14198](https://github.com/apache/pulsar/pull/14198)
-- Adjust topic exists check logic in http lookup process [#14199](https://github.com/apache/pulsar/pull/14199)
-- Fix NPE of internalExpireMessagesByTimestamp [#14243](https://github.com/apache/pulsar/pull/14243)
-- Fix rackaware placement policy does not take effect after delete rack configuration [#14248](https://github.com/apache/pulsar/pull/14248)
-- Fix print error log when server return redirect (http code 307) [#14259](https://github.com/apache/pulsar/pull/14259)
-- Optimize topic policy with HierarchyTopicPolicies about publishRate [#14267](https://github.com/apache/pulsar/pull/14267)
-- Fix ack-hole and backlog for persistent-replicator [#14282](https://github.com/apache/pulsar/pull/14282)
-- Fix NPE in internalSkipMessages [#14297](https://github.com/apache/pulsar/pull/14297)
-- Validate blank advertised listener name [#14306](https://github.com/apache/pulsar/pull/14306)
-- Let entries expire in the metadata caches [#14154](https://github.com/apache/pulsar/pull/14154)
-- Fix transaction system topic loop creation [#12749](https://github.com/apache/pulsar/pull/12749)
-- Fix topic transaction buffer handle null snapshot [#12758](https://github.com/apache/pulsar/pull/12758)
-- Optimize changeToCloseState method [#14277](https://github.com/apache/pulsar/pull/14277)
-
-### Clients
-- [Java] Support creating a consumer in the paused state [#11974](https://github.com/apache/pulsar/pull/11974)
-- [Java] Support passing existing executor providers to the client [#12037](https://github.com/apache/pulsar/pull/12037)
-- [Java] Fix the producer OOM if got an exception while adding messages to batch container [#12170](https://github.com/apache/pulsar/pull/12170)
-- [Java] Allow to config client allocator out of memory policy [#12200](https://github.com/apache/pulsar/pull/12200)
-- [Java] Support negative ack redelivery backoff [#12566](https://github.com/apache/pulsar/pull/12566)
-- [Java] Fix confusing logs in UnAckedMessageTracker [#13017](https://github.com/apache/pulsar/pull/13017)
-- [Java] Fix parseProtobufSchema method will be called two times [#13163](https://github.com/apache/pulsar/pull/13163)
-- [Java] Add getNumPartitions method into PartitionedProducerImpl [#13239](https://github.com/apache/pulsar/pull/13239)
-- [Java] Allow config client dns bind addr and port [#13390](https://github.com/apache/pulsar/pull/13390)
-- [Java] Support adding custom properties for the reconsumeLater interface [#13461](https://github.com/apache/pulsar/pull/13461)
-- [Java] Allow Client Builder set Dnslookup params [#13503](https://github.com/apache/pulsar/pull/13503)
-- [Java] Avoid repeatedly set startMessageIdData to null for ConsumerImpl [#13606](https://github.com/apache/pulsar/pull/13606)
-- [Java] Let the 'properties' to be empty for ConsumerBuilder and ProducerBuilder [#14074](https://github.com/apache/pulsar/pull/14074)
-- [Java] Log producer batchSize and msgSize percentiles [#14229](https://github.com/apache/pulsar/pull/14229)
-- [C++] Add Wireshark cmake and fix build with latest Wireshark [#13236](https://github.com/apache/pulsar/pull/13236)
-- [C++] Wireshark Pulsar dissector naming replace yahoo with apache [#13251](https://github.com/apache/pulsar/pull/13251)
-- [C++] Support arm64 optimized CRC32c hardware-instructions [#13246](https://github.com/apache/pulsar/pull/13246)
-- [C++] Support more pulsar command names and versions in Wireshark dissector [#13286](https://github.com/apache/pulsar/pull/13286)
-- [C++] Optimize MessageBuilder and SharedBuffer to avoid unnecessary memory copy [#13293](https://github.com/apache/pulsar/pull/13293)
-- [C++] Fix in Apple Silicon macOS the clang-format cannot find [#13333](https://github.com/apache/pulsar/pull/13333)
-- [C++] Add clang-format check for Pulsar Wireshark dissector [#13349](https://github.com/apache/pulsar/pull/13349)
-- [C++] Adjust clang-format search names [#13369](https://github.com/apache/pulsar/pull/13369)
-- [C++] Fix Wireshark dissector decode send command metadata behavior [#13471](https://github.com/apache/pulsar/pull/13471)
-- [C++] PIP 37: Support large message size [#13627](https://github.com/apache/pulsar/pull/13627)
-- [C++] Fix the consumer configuration inconsistency with Java client [#14070](https://github.com/apache/pulsar/pull/14070)
-- [Python] Provide __str__ operator for BytesSchema [#12593](https://github.com/apache/pulsar/pull/12593)
-- [Python] Support is_connected in Python Client [#13662](https://github.com/apache/pulsar/pull/13662)
-- [C] Add missing includes in reader_configuration.h [#12966](https://github.com/apache/pulsar/pull/12966)
-- [C] Add pulsar_client_subscribe_multi_topics and pulsar_client_subscribe_pattern [#12965](https://github.com/apache/pulsar/pull/12965)
-
-### Pulsar IO and Pulsar Functions
-
-- [Functions] Prevent NPE while stopping a non started Pulsar LogAppender [#12643](https://github.com/apache/pulsar/pull/12643)
-- [Functions] Allow configuring different implementations for Pulsar functions state store [#12646](https://github.com/apache/pulsar/pull/12646)
-- [Functions] Clean os even when statusFuture complete exceptionally [#12767](https://github.com/apache/pulsar/pull/12767)
-- [Functions] Override inactive_topic_policies in Pulsar Functions namespace creation [#13048](https://github.com/apache/pulsar/pull/13048)
-- [Functions] Add possibility to pass additional JVM arguments to the function JVM (additionalJavaRuntimeArguments) [#13282](https://github.com/apache/pulsar/pull/13282)
-- [Functions] Fix `getTlsTrustChainBytes` not work when functions worker not run with broker [#13875](https://github.com/apache/pulsar/pull/13875)
-- [Functions] Fix distributed log metadata not correctly initialized [#13891](https://github.com/apache/pulsar/pull/13891)
-- [Functions] Remove sensitive information from log [#14159](https://github.com/apache/pulsar/pull/14159)
-- [IO Connector] Pass client builder if no service url provided to debezium connector [#12145](https://github.com/apache/pulsar/pull/12145)
-- [IO Connector] Fix: "Sqlcmd: Error: Microsoft ODBC Driver 17 for SQL Server : Login failed for user 'sa'.." in MS SQL integration test [12374](https://github.com/apache/pulsar/pull/12374)
-- [IO Connector] Fix the marshal and unmarshal the sink config [#12625](https://github.com/apache/pulsar/pull/12625)
-- [IO Connector] Support renaming the file that has been processed [#13373](https://github.com/apache/pulsar/pull/13373)
-- [IO Connector] Support Fixed and ENUM datatypes for ElasticSearch Sink [#13800](https://github.com/apache/pulsar/pull/13800)
-- [IO Connector] Implement --retain-key-ordering (KEY_SHARED subscription) for Sinks [#14083](https://github.com/apache/pulsar/pull/14083)
-
-### Observability
-
-- [Broker] Expose broker bundles metrics to prometheus [#12366](https://github.com/apache/pulsar/pull/12366)
-- [Broker] Add publishRateLimitedTimes to topic metrics [#13538](https://github.com/apache/pulsar/pull/13538)
-- [Broker] Fix bundle metrics would overwrite loadbalance metrics [#13641](https://github.com/apache/pulsar/pull/13641)
-- [Broker] Fix managed cursor acknowledgment state metric names [#13844](https://github.com/apache/pulsar/pull/13844)
-- [Java Client] Add pending-queue size metrics to producer stats [#12674](https://github.com/apache/pulsar/pull/12674)
-
-### CLI
-- [Pulsar Admin] Support a mapping from brokers to partitioned topics that each broker serves [#11763](https://github.com/apache/pulsar/pull/11763)
-- [Pulsar Admin] Support the termination of a partitioned topic [#11893](https://github.com/apache/pulsar/pull/11893)
-- [Pulsar Admin] Update command descriptions from old 'property/cluster/namespace' format to current 'tenant/namespace' format [#10485](https://github.com/apache/pulsar/pull/10485)
-- [Pulsar Admin] Add remove-subscription-types-enabled command for namespace [#12392](https://github.com/apache/pulsar/pull/12392)
-- [Pulsar Admin] Fix output format of string by pulsar-admin command [#11878](https://github.com/apache/pulsar/pull/11878)
-- [Pulsar Admin] Add a metric to get the earliest time in the backlog [#12523](https://github.com/apache/pulsar/pull/12523)
-- [Pulsar Admin] Reduce severity of log "refreshing key manager" in KeyManagerProxy [#12594](https://github.com/apache/pulsar/pull/12594)
-- [Pulsar Admin] Support getting a list of topics under a namespace bundle [#12632](https://github.com/apache/pulsar/pull/12632)
-- [Pulsar Admin] Add get-replicated-subscription-status command for topic [#12891](https://github.com/apache/pulsar/pull/12891)
-- [Pulsar Admin] Add remove-subscription-types-enabled command for topic [#12983](https://github.com/apache/pulsar/pull/12983)
-- [Pulsar Admin] Validate the size options in cmd for topic and namespace [#13002](https://github.com/apache/pulsar/pull/13002)
-- [Pulsar Admin] Support subscription across multiple clusters [#13482](https://github.com/apache/pulsar/pull/13482)
-- [Pulsar Admin] Support deduplication across multiple clusters [#13487](https://github.com/apache/pulsar/pull/13487)
-- [Pulsar Admin] Support message TTL across multiple clusters [#13484](https://github.com/apache/pulsar/pull/13484)
-- [Pulsar Admin] Support persistence policies across multiple clusters [#13483](https://github.com/apache/pulsar/pull/13483)
-- [Pulsar Admin] Support publish rate across multiple clusters [#13496](https://github.com/apache/pulsar/pull/13496)
-- [Pulsar Admin] Support max consumers across multiple clusters [#13521](https://github.com/apache/pulsar/pull/13521)
-- [Pulsar Admin] Support max producer across multiple clusters [#13519](https://github.com/apache/pulsar/pull/13519)
-- [Pulsar Admin] Support compaction threshold across multiple clusters [#13513](https://github.com/apache/pulsar/pull/13513)
-- [Pulsar Admin] Support offload policies across multiple clusters [#13534](https://github.com/apache/pulsar/pull/13534)
-- [Pulsar Admin] Support max unacked messages per consumer across multiple clusters [#13547](https://github.com/apache/pulsar/pull/13547)
-- [Pulsar Admin] Support max message size support across multiple clusters [#13579](https://github.com/apache/pulsar/pull/13579)
-- [Pulsar Admin] Support deduplication snapshot interval across multiple clusters [#13578](https://github.com/apache/pulsar/pull/13578)
-- [Pulsar Admin] Support delayed delivery policy across multiple clusters [#13550](https://github.com/apache/pulsar/pull/13550)
-- [Pulsar Admin] Support max unacked messages on subscription across multiple clusters [#13549](https://github.com/apache/pulsar/pull/13549)
-- [Pulsar Admin] Support replicator dispatch rate across multiple clusters [#13624](https://github.com/apache/pulsar/pull/13624)
-- [Pulsar Admin] Support max subscriptions per topic across multiple clusters [#13623](https://github.com/apache/pulsar/pull/13623)
-- [Pulsar Admin] Move schema compatibility strategy cmd from topics to topicPolicies [#14225](https://github.com/apache/pulsar/pull/14225)
-- [Pulsar CLI] Add restart command to pulsar-daemon [#12279](https://github.com/apache/pulsar/pull/12279)
-- [Pulsar CLI] Print log for standalone when configuration is failed to load [#12280](https://github.com/apache/pulsar/pull/12280)
-- [Client Tool] Support Disabling Replication [#13659](https://github.com/apache/pulsar/pull/13659)
-- [Perf Tool] Add auth for transaction perf [#14271](https://github.com/apache/pulsar/pull/14271)
-
-### Others
-- [Proxy] Fix Pulsar Proxy to re-use authentication instance [#12245](https://github.com/apache/pulsar/pull/12245)
-- [Proxy] Fix auto-cert refresh when proxy connects to broker [#14130](https://github.com/apache/pulsar/pull/14130)
-- [WebSocket] Fix the batch message ack [#12530](https://github.com/apache/pulsar/pull/12530)
-- [Package Management] check service status before run commands [#12847](https://github.com/apache/pulsar/pull/12847)
-- [Package Management] Add package management filesystem storage into the distribution lib [#13202](https://github.com/apache/pulsar/pull/13202)
-- [Package Management] Fix the filesystem storage failure [#13218](https://github.com/apache/pulsar/pull/13218)
-- [Schema] Fix pulsar use json or avro primitive schema [#12886](https://github.com/apache/pulsar/pull/12886)
-- [Tiered Storage] Fix FileSystemManagedLedgerOffloader can not cleanup outdated ledger [#12309](https://github.com/apache/pulsar/pull/12309)
-- [Tiered Storage] Fix NoClassDefFoundError: com/google/inject/AbstractModule in pulsar-io/batch-data-generator and Jcloud offloader [#14150](https://github.com/apache/pulsar/pull/14150)
-- Add lua wireshark for pulsar [#13564](https://github.com/apache/pulsar/pull/13564)
-- Fix missing new line at the end of proxy.conf [#14359](https://github.com/apache/pulsar/pull/14359)
-
-### Library updates
-
-- Upgrade function's Go client version to v0.7.0 [#12839](https://github.com/apache/pulsar/pull/12839)
-- Upgrade dependencies (guava and what brought in older guava) to get rid of the guava-related CVE-2018-10237 and CVE-2020-8908 [#13716](https://github.com/apache/pulsar/pull/13716)
-- Use dependencyManagement to enforce snakeyaml version to 1.30 [#13722](https://github.com/apache/pulsar/pull/13722)
-- Upgrade dependencies to get rid of pulsar-io/jdbc related CVE-2020-13692 [#13753](https://github.com/apache/pulsar/pull/13753)
-- Remove --illegal-access errors resulting from Google Guice (upgrade to 5.0.1 and JClouds to 2.4.0) [#13810](https://github.com/apache/pulsar/pull/13810)
-- Upgrade jakarta.el to 3.0.4 to get rid of CVE-2021-28170 [#13943](https://github.com/apache/pulsar/pull/13943)
-- Upgrade Netty to 4.1.73.Final [#13981](https://github.com/apache/pulsar/pull/13981)
-- Remove net.jodah.failsafe dependency (fix JDK17 build) [#14124](https://github.com/apache/pulsar/pull/14124)
-- Upgrade netty version to 4.1.74.Final [#14257](https://github.com/apache/pulsar/pull/14257)
-
-### 2.9.2
-
-#### 2022-04-08
-
-#### Security
-- Get rid of CVEs in Solr connector [#13822](https://github.com/apache/pulsar/pull/13822)
-- Get rid of CVEs in InfluxDB connector [#13821](https://github.com/apache/pulsar/pull/13821)
-- Get rid of CVEs in batch-data-generator [#13820](https://github.com/apache/pulsar/pull/13820)
-- Get rid of CVEs brought in with aerospike [#13819](https://github.com/apache/pulsar/pull/13819)
-- Suppress false positive Avro CVE-2021-43045 [#13764](https://github.com/apache/pulsar/pull/13764)
-- Upgrade protobuf to 3.16.1 to address CVE-2021-22569 [#13695](https://github.com/apache/pulsar/pull/13695)
-- Upgrade Jackson to 2.12.6 [#13694](https://github.com/apache/pulsar/pull/13694)
-- Upgrade Log4j to 2.17.1 to address CVE-2021-44832 [#13552](https://github.com/apache/pulsar/pull/13552)
-- Upgrade to Log4J 2.17.0 to mitigate CVE-2021-45105 [#13392](https://github.com/apache/pulsar/pull/13392)
-- Cipher params not work in KeyStoreSSLContext [#13322](https://github.com/apache/pulsar/pull/13322)
-- Use JDK default security provider when Conscrypt isn't available [#12938](https://github.com/apache/pulsar/pull/12938)
-- Return if namespace policies are read only [#12514](https://github.com/apache/pulsar/pull/12514)
-- Upgrade Postgre driver to 42.2.25 to get rid of CVE-2022-21724 [#14119](https://github.com/apache/pulsar/pull/14119)
-- Bump slf4j from 1.7.25 to 1.7.32 [#13595](https://github.com/apache/pulsar/pull/13595)
-- Upgrade Netty to 4.1.72 - CVE-2021-43797 [#13328](https://github.com/apache/pulsar/pull/13328)
-
-#### Broker
-- Fix lost message issue due to ledger rollover. [#14664](https://github.com/apache/pulsar/pull/14664)
-- Fix thread leak in MLTransactionMetadataStore [#14524](https://github.com/apache/pulsar/pull/14524)
-- Fix npe in ManagedLedgerImpl [#14481](https://github.com/apache/pulsar/pull/14481)
-- Fix ``Future.join()`` causing deadlock. [#14469](https://github.com/apache/pulsar/pull/14469)
-- Fix Broker HealthCheck Endpoint Exposes Race Conditions [#14367](https://github.com/apache/pulsar/pull/14367)
-- Validate rack name [#14336](https://github.com/apache/pulsar/pull/14336)
-- Fix avg-messagePerEntry metrics for consumer [#14330](https://github.com/apache/pulsar/pull/14330)
-- Fix the wrong parameter in the log. [#14309](https://github.com/apache/pulsar/pull/14309)
-- Fix batch ack count is a negative issue. [#14288](https://github.com/apache/pulsar/pull/14288)
-- Bug fix: IllegalArgumentException: Invalid period 0.0 to calculate rate [#14280](https://github.com/apache/pulsar/pull/14280)
-- Clean up individually deleted messages before the mark-delete position [#14261](https://github.com/apache/pulsar/pull/14261)
-- If mark-delete operation fails, mark the cursor as "dirty" [#14256](https://github.com/apache/pulsar/pull/14256)
-- Fix detecting number of NICs in EC2 [#14252](https://github.com/apache/pulsar/pull/14252)
-- Remove log unacked msg. [#14246](https://github.com/apache/pulsar/pull/14246)
-- Change broker producer fence log level [#14196](https://github.com/apache/pulsar/pull/14196)
-- Avoid creating any topics in `NamespaceService#checkTopicExists` during topic lookup. [#14134](https://github.com/apache/pulsar/pull/14134)
-- Fix NPE of cumulative ack mode and incorrect unack message count [#14021](https://github.com/apache/pulsar/pull/14021)
-- Fix NPE - ``ReplicatedSubscriptionsController`` send marker message when enable deduplicated. [#14017](https://github.com/apache/pulsar/pull/14017)
-- KeyShared stickyHashRange subscription: prevent stuck subscription in case of consumer restart [#14014](https://github.com/apache/pulsar/pull/14014)
-- Add null check to workaround NPE in unit tests with Mockito/PowerMock [#14006](https://github.com/apache/pulsar/pull/14006)
-- Fix handling of consumers with equal names on on key shared selector with consistent hashing [#13991](https://github.com/apache/pulsar/pull/13991)
-- Trim configuration value string which contains blank prefix or suffix [#13984](https://github.com/apache/pulsar/pull/13984)
-- WaitingCursors potential heap memory leak [#13939](https://github.com/apache/pulsar/pull/13939)
-- Fix read schema compatibility strategy priority [#13938](https://github.com/apache/pulsar/pull/13938)
-- Fix SystemTopicBasedTopicPoliciesService NPE issue. [#13840](https://github.com/apache/pulsar/pull/13840)
-- NPE when get isAllowAutoUploadSchema [#13831](https://github.com/apache/pulsar/pull/13831)
-- Fix topic produced through REST not support Authorization [#13771](https://github.com/apache/pulsar/pull/13771)
-- Fix call sync method in async rest API for ``internalGetSubscriptionsForNonPartitionedTopic`` [#13745](https://github.com/apache/pulsar/pull/13745)
-- Fix the deadlock while using zookeeper thread to create ledger [#13744](https://github.com/apache/pulsar/pull/13744)
-- Fix inefficient forEach loop [#13742](https://github.com/apache/pulsar/pull/13742)
-- Fix non persistent topic subscription error. [#13685](https://github.com/apache/pulsar/pull/13685)
-- Fix invalid rack name cause bookie join rack failed [#13683](https://github.com/apache/pulsar/pull/13683)
-- Release old bundle from ownership cache when operator split bundle [#13678](https://github.com/apache/pulsar/pull/13678)
-- Avoid call sync method in async rest API for force delete subscription [#13668](https://github.com/apache/pulsar/pull/13668)
-- Avoid call sync method in async rest API for delete subscription [#13666](https://github.com/apache/pulsar/pull/13666)
-- Fix getInternalStats occasional lack of LeaderInfo [#13656](https://github.com/apache/pulsar/pull/13656)
-- Fix internal topic effect by InactiveTopicPolicy. [#13611](https://github.com/apache/pulsar/pull/13611)
-- Fix bug :Infinity value for CPU or Bandwidth usage [#13609](https://github.com/apache/pulsar/pull/13609)
-- Change ``ContextClassLoader`` to ``NarClassLoader`` in BrokerInterceptor [#13589](https://github.com/apache/pulsar/pull/13589)
-- Fix NPE when unloading namespace bundle [#13571](https://github.com/apache/pulsar/pull/13571)
-- Allow both limit and limitsize be null [#13557](https://github.com/apache/pulsar/pull/13557)
-- The log prints NamespaceService#isServiceUnitActive exception stack information. [#13553](https://github.com/apache/pulsar/pull/13553)
-- Update log content [#13540](https://github.com/apache/pulsar/pull/13540)
-- HealthCheck v2 failed [#13525](https://github.com/apache/pulsar/pull/13525)
-- Change ContextClassLoader to NarClassLoader in AdditionalServlet [#13501](https://github.com/apache/pulsar/pull/13501)
-- Optimize the debug log that affects performance, and unify the style [#13498](https://github.com/apache/pulsar/pull/13498)
-- Fix multi roles authz cannot handle empty roles case [#13477](https://github.com/apache/pulsar/pull/13477)
-- Fix the NPE in system topics policies service [#13469](https://github.com/apache/pulsar/pull/13469)
-- Fix race conditions in closing producers and consumers [#13428](https://github.com/apache/pulsar/pull/13428)
-- Fix deadlock in metadata-store callback thread for branch 2.9 [#13426](https://github.com/apache/pulsar/pull/13426)
-- Remove check resource when delete failure domain [#13421](https://github.com/apache/pulsar/pull/13421)
-- Fix create the dynamic configuration resource if not exist [#13420](https://github.com/apache/pulsar/pull/13420)
-- Fix batch message ack does not decrease the unacked-msg count. [#13383](https://github.com/apache/pulsar/pull/13383)
-- Fix dead loop in BacklogQuotaManager.dropBacklogForTimeLimit [#13249](https://github.com/apache/pulsar/pull/13249)
-- Modify return result of NamespacesBase#internalGetPublishRate [#13237](https://github.com/apache/pulsar/pull/13237)
-- Optimize ManagedLedger Ledger Ownership Check [#13222](https://github.com/apache/pulsar/pull/13222)
-- Fix shedding heartbeat ns [#13208](https://github.com/apache/pulsar/pull/13208)
-- Fix when deleting topic with NotFoundException, do not return to client. [#13203](https://github.com/apache/pulsar/pull/13203)
-- Clean up active consumer on already closed connection [#13196](https://github.com/apache/pulsar/pull/13196)
-- Update cursor last active timestamp when reseting cursor [#13166](https://github.com/apache/pulsar/pull/13166)
-- Use current resourceUsage value as historyUsage when leader change in ThresholdShedder [#13136](https://github.com/apache/pulsar/pull/13136)
-- Don't attempt to delete pending ack store unless transactions are enabled [#13041](https://github.com/apache/pulsar/pull/13041)
-- Fix race condition in ResourceLockImpl#revalidate [#13006](https://github.com/apache/pulsar/pull/13006)
-- Fix NPE in `PersistentTopic.checkSubscriptionTypesEnable` [#12961](https://github.com/apache/pulsar/pull/12961)
-- Fix wrong isEmpty method of ConcurrentOpenLongPairRangeSet [#12953](https://github.com/apache/pulsar/pull/12953)
-- Correct param of delete method for v1 topic [#12936](https://github.com/apache/pulsar/pull/12936)
-- Change create topic return error to Status.BAD_REQUEST [#12919](https://github.com/apache/pulsar/pull/12919)
-- Fix topic policy listener deleted by mistake. [#12904](https://github.com/apache/pulsar/pull/12904)
-- Remove readerCaches and close reader when exception occurs in SystemTopicBasedTopicPoliciesService [#12873](https://github.com/apache/pulsar/pull/12873)
-- Fix deleting tenants with active namespaces with 500. [#12848](https://github.com/apache/pulsar/pull/12848)
-- Bug Fix: topic policy is not properly init if namespace is loaded first. [#12833](https://github.com/apache/pulsar/pull/12833)
-- Add broker config isAllowAutoUpdateSchema [#12786](https://github.com/apache/pulsar/pull/12786)
-- Fix TopicPoliciesCacheNotInitException issue. [#12773](https://github.com/apache/pulsar/pull/12773)
-- The problem of two exception handling [#12744](https://github.com/apache/pulsar/pull/12744)
-- Handle lookup redirect for V1-topics with different cluster [#12743](https://github.com/apache/pulsar/pull/12743)
-- Fix race condition in PersistentTopic#addReplicationCluster [#12729](https://github.com/apache/pulsar/pull/12729)
-- Remove catching `NamingException`. [#12725](https://github.com/apache/pulsar/pull/12725)
-- Even if always compatible is set, Consumers cannot be created [#12721](https://github.com/apache/pulsar/pull/12721)
-- Fix znode leakage caused by deleting tenant [#12711](https://github.com/apache/pulsar/pull/12711)
-- Remove unused listeners if it have no listeners. [#12654](https://github.com/apache/pulsar/pull/12654)
-- Optimize exception information for schemas [#12647](https://github.com/apache/pulsar/pull/12647)
-- Support retry when creating reader of Topic Policies [#12622](https://github.com/apache/pulsar/pull/12622)
-- Fix String should use equals but not ==. [#12619](https://github.com/apache/pulsar/pull/12619)
-- Fix 12614, waitingForPingResponse needs to be modified with volatile for concurrent sence [#12615](https://github.com/apache/pulsar/pull/12615)
-- Cleanup ProxyPublishConsumeTest [#12607](https://github.com/apache/pulsar/pull/12607)
-- Fix additional servlets nar might extract to null directory [#12585](https://github.com/apache/pulsar/pull/12585)
-- Fix log typo in NamespaceService#checkHeartbeatNamespace [#12582](https://github.com/apache/pulsar/pull/12582)
-- Clean up the metadata of the non-persistent partitioned topics. [#12550](https://github.com/apache/pulsar/pull/12550)
-- Add git branch information for PulsarVersion [#12541](https://github.com/apache/pulsar/pull/12541)
-- Websocket should pass the encryption context to the consumers [#12539](https://github.com/apache/pulsar/pull/12539)
-- The count of topics on the bundle is less than 2, skip split [#12527](https://github.com/apache/pulsar/pull/12527)
-- Remove redundant null check for getInternalListener [#12474](https://github.com/apache/pulsar/pull/12474)
-- Optimize the code: remove extra spaces [#12470](https://github.com/apache/pulsar/pull/12470)
-- Fix wrong property name in NamespaceIsolationDataImpl#secondary [#12433](https://github.com/apache/pulsar/pull/12433)
-- Fix the null point caused by deleting the system topic policy [#12367](https://github.com/apache/pulsar/pull/12367)
-- Future completed twice in the method of impl.MLPendingAckStore#closeAsync [#12362](https://github.com/apache/pulsar/pull/12362)
-- Fix the race of delete subscription and delete topic [#12240](https://github.com/apache/pulsar/pull/12240)
-- Fix delete authentication policies when delete topic. [#12215](https://github.com/apache/pulsar/pull/12215)
-- Fix update ledger list to znode version mismatch failed, ledger not delete [#12015](https://github.com/apache/pulsar/pull/12015)
-- Fix issues 11964, deadlock bug when use key_shared mode [#11965](https://github.com/apache/pulsar/pull/11965)
-- Fix validateGlobalNamespaceOwnership wrap exception issue. [#14269](https://github.com/apache/pulsar/pull/14269)
-- Fix reader skipped remaining compacted data during the topic unloading. [#13629](https://github.com/apache/pulsar/pull/13629)
-- Return message ID from compacted ledger while the compaction cursor reach the end of the topic [#13533](https://github.com/apache/pulsar/pull/13533)
-- Fix getting the last message-id from an empty compact ledger [#13476](https://github.com/apache/pulsar/pull/13476)
-- Fix lost compaction data due to compaction properties missed during reset-cursor [#12698](https://github.com/apache/pulsar/pull/12698)
-- Do not move the non-durable cursor position when trimming ledgers while topic with compaction [#12602](https://github.com/apache/pulsar/pull/12602)
-- Fix can't read the latest message of the compacted topic [#14449](https://github.com/apache/pulsar/pull/14449)
-- Fix skips compacted data for reader/consumer [#12464](https://github.com/apache/pulsar/pull/12464)
-- Fix wrong behaviour caused by not cleaning up topic policy service state. [#14503](https://github.com/apache/pulsar/pull/14503)
-- Avoid thread deadlock problem when creating topic policy reader [#13837](https://github.com/apache/pulsar/pull/13837)
-- Bug Fix: topic policy is not properly init if namespace is loaded first. [#13422](https://github.com/apache/pulsar/pull/13422)
-- Fix parse BigDecimal [#14019](https://github.com/apache/pulsar/pull/14019)
-- Fix: bug when allAll bucket [#13467](https://github.com/apache/pulsar/pull/13467)
-- Support GET_BACKLOG_SIZE topic op after enable auth [#12850](https://github.com/apache/pulsar/pull/12850)
-- Reduce the readFailureBackoff time [#12444](https://github.com/apache/pulsar/pull/12444)
-- Add readWorkerThreadsThrottlingEnabled to conf/bookkeeper.conf [#12666](https://github.com/apache/pulsar/pull/12666)
-
-#### Transaction
-- Fix cursor readPosition is bigger than maxPosition in OpReadEntry [#14667](https://github.com/apache/pulsar/pull/14667)
-- Fix MLTransactionMetadataStore.update async fail [#14532](https://github.com/apache/pulsar/pull/14532)
-- Fix end transaction at state of timeout [#14370](https://github.com/apache/pulsar/pull/14370)
-- Optimize testEndTBRecoveringWhenManagerLedgerDisReadable [#14303](https://github.com/apache/pulsar/pull/14303)
-- Delete changeMaxReadPositionAndAddAbortTimes when checkIfNoSnapshot [#14276](https://github.com/apache/pulsar/pull/14276)
-- Adopt single thread pool in TC [#14238](https://github.com/apache/pulsar/pull/14238)
-- Fix send normal message can't change MaxReadPosition [#14192](https://github.com/apache/pulsar/pull/14192)
-- Optimize transaction timeout [#14172](https://github.com/apache/pulsar/pull/14172)
-- Fix subscription ack transaction marker. [#14170](https://github.com/apache/pulsar/pull/14170)
-- Fix OpBase.callback is not called in TransactionMetaStoreHandler#failPendingRequest [#14133](https://github.com/apache/pulsar/pull/14133)
-- Fix deadlock on txn semaphore permit exhaustion [#14131](https://github.com/apache/pulsar/pull/14131)
-- Fix unack message count for transaction Ack while disabled batch index ack [#14071](https://github.com/apache/pulsar/pull/14071)
-- Fix individual ack with transaction decrease unAckMessageCounnt [#14020](https://github.com/apache/pulsar/pull/14020)
-- Resolve the performance bottleneck of TransactionBufferHandle [#13988](https://github.com/apache/pulsar/pull/13988)
-- RetryException should not be return [#13828](https://github.com/apache/pulsar/pull/13828)
-- Fix recover of TransactionBuffer [#13739](https://github.com/apache/pulsar/pull/13739)
-- Duplicate TYPE of Prometheus metrics [#13704](https://github.com/apache/pulsar/pull/13704)
-- Remove txn add partition info log [#13670](https://github.com/apache/pulsar/pull/13670)
-- Fix no response to client when handleSubscribe because PendingAckHandleImpl init fail [#13655](https://github.com/apache/pulsar/pull/13655)
-- PendingAckHandleImpl handle isInCacheRequest [#13481](https://github.com/apache/pulsar/pull/13481)
-- Stop TB recovering with exception [#13425](https://github.com/apache/pulsar/pull/13425)
-- Optimize transaction FieldUpdater to static final [#13396](https://github.com/apache/pulsar/pull/13396)
-- Delete the redundant code [#13327](https://github.com/apache/pulsar/pull/13327)
-- Allow transaction to be committed or aborted in the state of aborting or committing. [#13323](https://github.com/apache/pulsar/pull/13323)
-- Remove request if can not send [#13308](https://github.com/apache/pulsar/pull/13308)
-- Fix generate transactionId some comments [#13234](https://github.com/apache/pulsar/pull/13234)
-- Fix transaction sequenceId generate error. [#13209](https://github.com/apache/pulsar/pull/13209)
-- No TransactionCoordinatorNotFound, but automatic reconnect [#13135](https://github.com/apache/pulsar/pull/13135)
-- Add a check for uninitialized PendingAck [#13088](https://github.com/apache/pulsar/pull/13088)
-- Handle exception double [#12881](https://github.com/apache/pulsar/pull/12881)
-- Stop TP replaying with Exception [#12700](https://github.com/apache/pulsar/pull/12700)
-- Stop TB recovering with exception [#12636](https://github.com/apache/pulsar/pull/12636)
-- Txn client check timeout [#12521](https://github.com/apache/pulsar/pull/12521)
-- Fix maxReadPosition with normal publish [#12386](https://github.com/apache/pulsar/pull/12386)
-- Fix bugs, Exception thrower by TB::appendBufferToTxn must be ManagedLedgerException. [#12376](https://github.com/apache/pulsar/pull/12376)
-- Merge transactionBuffer exception into a class [#12358](https://github.com/apache/pulsar/pull/12358)
-- Add transaction perf [#11933](https://github.com/apache/pulsar/pull/11933)
-- Adopt Single_thread to handle TcClient connecting [#13969](https://github.com/apache/pulsar/pull/13969)
-- Stop TC replaying with exception [#12705](https://github.com/apache/pulsar/pull/12705)
-- Fix performance [#13253](https://github.com/apache/pulsar/pull/13253)
-
-#### Admin
-- Fix Broker HealthCheck Endpoint Exposes Race Conditions. [#14658](https://github.com/apache/pulsar/pull/14658)
-- Fix delete namespace issue. [#14657](https://github.com/apache/pulsar/pull/14657)
-- Make sure policies.is_allow_auto_update_schema not null [#14409](https://github.com/apache/pulsar/pull/14409)
-- Fix delete namespace issue. [#14215](https://github.com/apache/pulsar/pull/14215)
-- Fix NPE when reset-cursor at a non-existent topic (RestException without cause) [#13573](https://github.com/apache/pulsar/pull/13573)
-- Add transaction admin [#13447](https://github.com/apache/pulsar/pull/13447)
-- Print topic internal info as formatted json [#12709](https://github.com/apache/pulsar/pull/12709)
-- Add --all option to get all version schema of topic [#12535](https://github.com/apache/pulsar/pull/12535)
-- Modify exception of set-properties for namespace [#12436](https://github.com/apache/pulsar/pull/12436)
-- Get schema validation enforce add applied. [#12349](https://github.com/apache/pulsar/pull/12349)
-- Add corresponding get command for namespace [#12322](https://github.com/apache/pulsar/pull/12322)
-- Pulsar admin exposes secret for source and sink [#13059](https://github.com/apache/pulsar/pull/13059)
-- Perfect judgment conditions of pulsar-admin [#12315](https://github.com/apache/pulsar/pull/12315)
-
-#### Proxy
-- Fix port exhaustion and connection issues in Pulsar Proxy [#14078](https://github.com/apache/pulsar/pull/14078)
-- Allow config of IO and acceptor threads in proxy [#14054](https://github.com/apache/pulsar/pull/14054)
-- Prevent leak of unreleased lookupRequestSemaphore permits [#13812](https://github.com/apache/pulsar/pull/13812)
-- Fix issue when Proxy fails to start and logs about an uncaught exception [#13171](https://github.com/apache/pulsar/pull/13171)
-- Add error log when new jetty client exception [#12840](https://github.com/apache/pulsar/pull/12840)
-- Remove unnecessary Pulsar Client usage from Pulsar Proxy [#13836](https://github.com/apache/pulsar/pull/13836)
-
-#### Clients
-- [Java] Fix ConsumerBuilderImpl#subscribeAsync blocks calling thread. [#14433](https://github.com/apache/pulsar/pull/14433)
-- [Java] Fix adding message to list potential issue [#14377](https://github.com/apache/pulsar/pull/14377)
-- [Java] Fix send to deadLetterTopic not working when reach maxRedeliverCount [#14317](https://github.com/apache/pulsar/pull/14317)
-- [Java] Fix time unit mismatch in errMsg when producer send fails. [#14299](https://github.com/apache/pulsar/pull/14299)
-- [Java] Fix PersistentAcknowledgmentsGroupingTracker set BitSet issue. [#14260](https://github.com/apache/pulsar/pull/14260)
-- [Java] Check ``getTlsTrustStorePath`` NPE when user forget to set it. [#14253](https://github.com/apache/pulsar/pull/14253)
-- [Java] Fix consume failure when BatchReceivePolicy#maxNumBytes < message size [#14139](https://github.com/apache/pulsar/pull/14139)
-- [Java] Use `scheduleWithFixedDelay` instead of `scheduleAtFixedRate` for java producer batch timer [#14125](https://github.com/apache/pulsar/pull/14125)
-- [Java] Add a default timeout for OAuth2 Metadata Resolver [#14056](https://github.com/apache/pulsar/pull/14056)
-- [Java] Fix send chunking message failed when ordering key is set. [#13699](https://github.com/apache/pulsar/pull/13699)
-- [Java] Fix send chunking message failed when encryption enabled [#13689](https://github.com/apache/pulsar/pull/13689)
-- [Java] Fix Producer semaphore permit release issue [#13682](https://github.com/apache/pulsar/pull/13682)
-- [Java] Fix the wrong multi-topic has message available behavior [#13634](https://github.com/apache/pulsar/pull/13634)
-- [Java] Use PulsarByteBufAllocator to allocate buffer for chunks [#13536](https://github.com/apache/pulsar/pull/13536)
-- [Java] Fix resources leak when create producer failed [#13505](https://github.com/apache/pulsar/pull/13505)
-- [Java] Fix semaphore and memory leak when chunks failed to enqueue [#13454](https://github.com/apache/pulsar/pull/13454)
-- [Java] Fix invalid setting of enabled ciphers to fix warning from BoringSSL [#13435](https://github.com/apache/pulsar/pull/13435)
-- [Java] Fix multi topic reader has message available behavior [#13332](https://github.com/apache/pulsar/pull/13332)
-- [Java] Improve consumer listener logic [#13273](https://github.com/apache/pulsar/pull/13273)
-- [Java] Fix memory leak when message payload processor is configured [#13233](https://github.com/apache/pulsar/pull/13233)
-- [Java] Change the time units from ns to ms [#13057](https://github.com/apache/pulsar/pull/13057)
-- [Java] Use sendAsync instead of send when produce message to retry topic. [#12946](https://github.com/apache/pulsar/pull/12946)
-- [Java] Avoid IllegalStateException in ClientCnx debug logs [#12899](https://github.com/apache/pulsar/pull/12899)
-- [Java] Fix pending queue-size stats for batch messages [#12704](https://github.com/apache/pulsar/pull/12704)
-- [Java] Fix invalid firstSentAt in log message when timeout first time [#12588](https://github.com/apache/pulsar/pull/12588)
-- [Java] Add conf backoff values [#12520](https://github.com/apache/pulsar/pull/12520)
-- [Java] Update producer stats when producer close [#12500](https://github.com/apache/pulsar/pull/12500)
-- [Java] Fix a typo in UnAckedMessageTracker [#12467](https://github.com/apache/pulsar/pull/12467)
-- [Java] Fix the retry topic's `REAL_TOPIC` & `ORIGIN_MESSAGE_ID` property [#12451](https://github.com/apache/pulsar/pull/12451)
-- [Java] Change the producer fence error log to debug level [#12447](https://github.com/apache/pulsar/pull/12447)
-- [Java] Add log error tracking for semaphore count leak [#12410](https://github.com/apache/pulsar/pull/12410)
-- [Java] Fix race condition of OpSendMsgQueue when publishing messages [#14231](https://github.com/apache/pulsar/pull/14231)
-- [C++] Fix wrong unit of Access Token Response's `expires_in` field [#14554](https://github.com/apache/pulsar/pull/14554)
-- [C++] Fix thread safety issue for multi topic consumer [#14380](https://github.com/apache/pulsar/pull/14380)
-- [C++] Fix pulsar client cpp build fail in gcc-4.8.5 [#14053](https://github.com/apache/pulsar/pull/14053)
-- [C++] Fix hasMessageAvailable returns wrong value for last message [#13883](https://github.com/apache/pulsar/pull/13883)
-- [C++] Fix in macOS CMake might find error boost-python libs path [#13193](https://github.com/apache/pulsar/pull/13193)
-- [C++] Fix libcurl miss auth header when broker return 307 [#13112](https://github.com/apache/pulsar/pull/13112)
-- [C++] Define and expose PULSAR_VERSION macro [#12769](https://github.com/apache/pulsar/pull/12769)
-- [C++] Fix request timeout for GetLastMessageId doesn't work [#12586](https://github.com/apache/pulsar/pull/12586)
-- [C++] Support setting priority for consumers [#12526](https://github.com/apache/pulsar/pull/12526)
-- [C++] Fix connection read error logging [#12492](https://github.com/apache/pulsar/pull/12492)
-- [C++] Use weak ref to ClientConnection for timeout task [#12409](https://github.com/apache/pulsar/pull/12409)
-- [C++] Fix Version.h not found when CMake binary directory is customized [#13324](https://github.com/apache/pulsar/pull/13324)
-- [C++] Fix GCC compilation failure caused by warning macro [#14402](https://github.com/apache/pulsar/pull/14402)
-- [C++] Fix frequent segmentation fault of Python tests by refactoring ExecutorService [#12427](https://github.com/apache/pulsar/pull/12427)
-- [Python] Apply clang-format check for python wrapper [#13418](https://github.com/apache/pulsar/pull/13418)
-- [Python] Python schema support custom Avro configurations for Enum type [#12642](https://github.com/apache/pulsar/pull/12642)
-- [Python] JsonSchema encoding is not idempotent [#12490](https://github.com/apache/pulsar/pull/12490)
-- [Python] Cannot use any values that evaluates to False [#12489](https://github.com/apache/pulsar/pull/12489)
-- [Python] Python client support using custom Avro schema definition [#12516](https://github.com/apache/pulsar/pull/12516)
-- [WebSocket] Fix ``ClassCastException`` when user create ``MultiTopicReader``. [#14316](https://github.com/apache/pulsar/pull/14316)
-- [WebSocket] Add debug log for WebSocket. [#12458](https://github.com/apache/pulsar/pull/12458)
-
-#### CleanUp
-- Remove unnecessary boxing unboxing [#12790](https://github.com/apache/pulsar/pull/12790)
-- Optimize if statement [#12741](https://github.com/apache/pulsar/pull/12741)
-- Remove unnecessary string operation [#12719](https://github.com/apache/pulsar/pull/12719)
-- Remove redundant placeholders [#12717](https://github.com/apache/pulsar/pull/12717)
-- Remove unused code in PersistentTopic.java [#12715](https://github.com/apache/pulsar/pull/12715)
-- Remove unnecessary powermock annotation [#12713](https://github.com/apache/pulsar/pull/12713)
-- Remove useless method "PersistentTopic#getPersistentTopic" [#12655](https://github.com/apache/pulsar/pull/12655)
-- Remove unused isTxnMessage [#12472](https://github.com/apache/pulsar/pull/12472)
-- Optimize SecurityUtility code flow [#12431](https://github.com/apache/pulsar/pull/12431)
-- Remove redundant code [#12424](https://github.com/apache/pulsar/pull/12424)
-
-#### Doc
-- Fix doc for the wrong default value of `maxPendingChunkedMessage` [#14144](https://github.com/apache/pulsar/pull/14144)
-- Update notice year. [#13653](https://github.com/apache/pulsar/pull/13653)
-- Fix java doc for MultipleListenerValidator [#12389](https://github.com/apache/pulsar/pull/12389)
-
-#### Pulsar SQL
-- Fix PulsarRecordCursor deserialize issue. [#14379](https://github.com/apache/pulsar/pull/14379)
-- Support protobuf/timestamp [#13287](https://github.com/apache/pulsar/pull/13287)
-- Handle message null schema version in PulsarRecordCursor [#12809](https://github.com/apache/pulsar/pull/12809)
-- Support query chunked messages feature in Pulsar SQL [#12720](https://github.com/apache/pulsar/pull/12720)
-- Pulsar SQL support query big entry data [#12448](https://github.com/apache/pulsar/pull/12448)
-- Fix time field use error [#12249](https://github.com/apache/pulsar/pull/12249)
-
-#### Dependency
-- Bump netty version to 4.1.74.Final [#14257](https://github.com/apache/pulsar/pull/14257)
-- Upgrade commons-cli to 1.5.0 [#14094](https://github.com/apache/pulsar/pull/14094)
-- Upgrade Gson version 2.8.6 to 2.8.9 [#13610](https://github.com/apache/pulsar/pull/13610)
-- Fix issue of mixed SLF4J library versions in presto libs [#13603](https://github.com/apache/pulsar/pull/13603)
-- Remove the unused junit4 dependency in managed ledger [#13514](https://github.com/apache/pulsar/pull/13514)
-- Upgrade to BookKeeper 4.14.3 [#12760](https://github.com/apache/pulsar/pull/12760)
-- Some dependencies in integration tests scope should be test [#12696](https://github.com/apache/pulsar/pull/12696)
-- Upgrade debezium to 1.7.1 [#12644](https://github.com/apache/pulsar/pull/12644)
-- Upgrade BK to 4.14.4 and Grpc to 1.42.1 [#13714](https://github.com/apache/pulsar/pull/13714)
-
-#### Test
-- BacklogQuotaManagerTest#testProducerExceptionAndThenUnblockSizeQuota [#14213](https://github.com/apache/pulsar/pull/14213)
-- BacklogQuotaManagerTest.testConsumerBacklogEvictionTimeQuotaWithEmptyLedger [#13724](https://github.com/apache/pulsar/pull/13724)
-- Fix flakiness issue when spying ServerCnx [#13608](https://github.com/apache/pulsar/pull/13608)
-- Fix flaky test for BrokerServiceLookupTest.testModularLoadManagerSplitBundle [#13159](https://github.com/apache/pulsar/pull/13159)
-- Fix flaky caused by message receive timeout in testBlockBrokerDispatching [#12954](https://github.com/apache/pulsar/pull/12954)
-- Fix flaky test in PersistentStreamingDispatcherBlockConsumerTest [#12943](https://github.com/apache/pulsar/pull/12943)
-- Fix flaky test in testReplicatorProducerName [#12898](https://github.com/apache/pulsar/pull/12898)
-- JavaInstanceTest should be AssertEquals [#12836](https://github.com/apache/pulsar/pull/12836)
-- ElasticSearchClientTests tests time out [#12694](https://github.com/apache/pulsar/pull/12694)
-- Close Zk database on unit tests [#12649](https://github.com/apache/pulsar/pull/12649)
-- Optimize the tests extends from TransactionTestBase [#12560](https://github.com/apache/pulsar/pull/12560)
-- Broker resource group test optimize fail msg [#12438](https://github.com/apache/pulsar/pull/12438)
-- Fix some tests not enabled in integration tests [#12417](https://github.com/apache/pulsar/pull/12417)
-- Fix windows test path probleam [#12398](https://github.com/apache/pulsar/pull/12398)
-- Fix ProxyServiceStarterTest flaky tests [#12344](https://github.com/apache/pulsar/pull/12344)
-- AdminApiTest.testNamespaceSplitBundleConcurrent [#14565](https://github.com/apache/pulsar/pull/14565)
-- Add test to ensure correct zk children cache invalidation [#14178](https://github.com/apache/pulsar/pull/14178)
-- Upgrade Mockito to latest stable 3.x version, 3.12.4 [#13622](https://github.com/apache/pulsar/pull/13622)
-- Add @Test annotation to test methods [#12640](https://github.com/apache/pulsar/pull/12640)
-
-#### Build
-- Add suppression for pulsar-package-bookkeeper-storage [#13451](https://github.com/apache/pulsar/pull/13451)
-- Suppress false positive check for netty-tcnative-classes [#13364](https://github.com/apache/pulsar/pull/13364)
-
-#### Tool
-- Fix NPE in cmdTopics [#13450](https://github.com/apache/pulsar/pull/13450)
-- Add missed import [#13037](https://github.com/apache/pulsar/pull/13037)
-- Support listenerThreads configuration. [#12892](https://github.com/apache/pulsar/pull/12892)
-- Improve exception info for invaild time-related option [#12828](https://github.com/apache/pulsar/pull/12828)
-- Fix doc for pulsar-admin bookies cmd [#12542](https://github.com/apache/pulsar/pull/12542)
-
-#### Function
-- Miss runtime set in GoInstanceConfig [#13031](https://github.com/apache/pulsar/pull/13031)
-- Remove corrupt visible testing annotation in function workers [#12621](https://github.com/apache/pulsar/pull/12621)
-- Pulsar admin exposes secrets for function [#12950](https://github.com/apache/pulsar/pull/12950)
-
-#### CLI
-- Support auto-recovery service in pulsar cli [#12985](https://github.com/apache/pulsar/pull/12985)
-- Enable CLI to publish non-batched messages [#12641](https://github.com/apache/pulsar/pull/12641)
-
-#### CI
-- Replace deprecated "adopt" OpenJDK distribution with "temurin" in GitHub Actions config [#12945](https://github.com/apache/pulsar/pull/12945)
-
-#### Connector
-- [ES-Sink] Use topic name as the index name if indexName is not configured [#13064](https://github.com/apache/pulsar/pull/13064)
-- [ES-Sink] Correct @FieldDoc defaultValue for some fields [#12697](https://github.com/apache/pulsar/pull/12697)
-- Don't create AvroData for each KafkaSourceRecord [#12859](https://github.com/apache/pulsar/pull/12859)
-
-#### Tiered Storage
-- Add retry to tolerate the offload index file read failure [#12452](https://github.com/apache/pulsar/pull/12452)
-- Fix the read performance issue in the offload readAsync [#12443](https://github.com/apache/pulsar/pull/12443)
-
-### 2.8.3
-
-#### 2022-03-21
-
-### Important Notices
-
-- Fix detecting number of NICs in EC2 [#14252](https://github.com/apache/pulsar/pull/14252). In the event that Pulsar cannot determine the NIC speed from the host, please set `loadBalancerOverrideBrokerNicSpeedGbps`.
-- Bump BookKeeper 4.14.3 [12906](https://github.com/apache/pulsar/pull/12906)
-- Add broker config `isAllowAutoUpdateSchema` [12786](https://github.com/apache/pulsar/pull/12786)
-
-### Security
-- Upgrade Postgres driver to 42.2.25 to get rid of CVE-2022-21724 [14119](https://github.com/apache/pulsar/pull/14119)
-- Get rid of CVEs in Solr connector [13822](https://github.com/apache/pulsar/pull/13822)
-- Get rid of CVEs in InfluxDB connector [13821](https://github.com/apache/pulsar/pull/13821)
-- Get rid of CVEs in batch-data-generator [13820](https://github.com/apache/pulsar/pull/13820)
-- Get rid of CVEs brought in with aerospike [13819](https://github.com/apache/pulsar/pull/13819)
-- [owasp] suppress false positive Avro CVE-2021-43045 [13764](https://github.com/apache/pulsar/pull/13764)
-- Upgrade protobuf to 3.16.1 to address CVE-2021-22569 [13695](https://github.com/apache/pulsar/pull/13695)
-- Upgrade Jackson to 2.12.6 [13694](https://github.com/apache/pulsar/pull/13694)
-- Upgrade Log4j to 2.17.1 to address CVE-2021-44832 [13552](https://github.com/apache/pulsar/pull/13552)
-- Cipher params not work in KeyStoreSSLContext [13322](https://github.com/apache/pulsar/pull/13322)
-- [Broker] Remove tenant permission verification when list partitioned-topic [13138](https://github.com/apache/pulsar/pull/13138)
-- Use JDK default security provider when Conscrypt isn't available [12938](https://github.com/apache/pulsar/pull/12938)
-- [Authorization] Return if namespace policies are read only [12514](https://github.com/apache/pulsar/pull/12514)
-
-### Pulsar Admin
-- Make sure policies.is_allow_auto_update_schema not null [14409](https://github.com/apache/pulsar/pull/14409)
-- pulsar admin exposes secret for source and sink [13059](https://github.com/apache/pulsar/pull/13059)
-- Fix deleting tenants with active namespaces with 500. [13020](https://github.com/apache/pulsar/pull/13020)
-- [function] pulsar admin exposes secrets for function [12950](https://github.com/apache/pulsar/pull/12950)
-
-### Bookkeeper
-- Upgrade BK to 4.14.4 and Grpc to 1.42.1 [13714](https://github.com/apache/pulsar/pull/13714)
-- Bump BookKeeper 4.14.3 [12906](https://github.com/apache/pulsar/pull/12906)
-
-### Broker
-- Fix the wrong parameter in the log. [14309](https://github.com/apache/pulsar/pull/14309)
-- Fix batch ack count is negative issue. [14288](https://github.com/apache/pulsar/pull/14288)
-- bug fix: IllegalArgumentException: Invalid period 0.0 to calculate rate [14280](https://github.com/apache/pulsar/pull/14280)
-- Clean up individually deleted messages before the mark-delete position [14261](https://github.com/apache/pulsar/pull/14261)
-- If mark-delete operation fails, mark the cursor as "dirty" [14256](https://github.com/apache/pulsar/pull/14256)
-- Fixed detecting number of NICs in EC2 [14252](https://github.com/apache/pulsar/pull/14252)
-- Remove log unacked msg. [14246](https://github.com/apache/pulsar/pull/14246)
-- Change broker producer fence log level [14196](https://github.com/apache/pulsar/pull/14196)
-- Fix NPE of cumulative ack mode and incorrect unack message count [14021](https://github.com/apache/pulsar/pull/14021)
-- KeyShared stickyHashRange subscription: prevent stuck subscription in case of consumer restart [14014](https://github.com/apache/pulsar/pull/14014)
-- Trim configuration value string which contains blank prefix or suffix [13984](https://github.com/apache/pulsar/pull/13984)
-- waitingCursors potential heap memory leak [13939](https://github.com/apache/pulsar/pull/13939)
-- Fix read schema compatibility strategy priority [13938](https://github.com/apache/pulsar/pull/13938)
-- NPE when get isAllowAutoUploadSchema [13831](https://github.com/apache/pulsar/pull/13831)
-- Fix call sync method in async rest API for ``internalGetSubscriptionsForNonPartitionedTopic`` [13745](https://github.com/apache/pulsar/pull/13745)
-- Fix the deadlock while using zookeeper thread to create ledger [13744](https://github.com/apache/pulsar/pull/13744)
-- Fix inefficient forEach loop [13742](https://github.com/apache/pulsar/pull/13742)
-- [Issue 13640] Fix non persistent topic subscription error. [13685](https://github.com/apache/pulsar/pull/13685)
-- Fix invalid rack name cause bookie join rack failed [13683](https://github.com/apache/pulsar/pull/13683)
-- Avoid call sync method in async rest API for force delete subscription [13668](https://github.com/apache/pulsar/pull/13668)
-- Avoid call sync method in async rest API for delete subscription [13666](https://github.com/apache/pulsar/pull/13666)
-- Fix getInternalStats occasional lack of LeaderInfo [13656](https://github.com/apache/pulsar/pull/13656)
-- Fix reader skipped remaining compacted data during the topic unloading. [13629](https://github.com/apache/pulsar/pull/13629)
-- [Issue 13479] Fixed internal topic effect by InactiveTopicPolicy. [13611](https://github.com/apache/pulsar/pull/13611)
-- Fix bug :Infinity value for CPU or Bandwidth usage [13609](https://github.com/apache/pulsar/pull/13609)
-- Change ``ContextClassLoader`` to ``NarClassLoader`` in BrokerInterceptor [13589](https://github.com/apache/pulsar/pull/13589)
-- Fix NPE when unloading namespace bundle [13571](https://github.com/apache/pulsar/pull/13571)
-- update log content [13540](https://github.com/apache/pulsar/pull/13540)
-- Return message ID from compacted ledger while the compaction cursor reach the end of the topic [13533](https://github.com/apache/pulsar/pull/13533)
-- Change ContextClassLoader to NarClassLoader in AdditionalServlet [13501](https://github.com/apache/pulsar/pull/13501)
-- fix(Auth): Fix multi roles authz cannot handle empty roles case [13477](https://github.com/apache/pulsar/pull/13477)
-- Fix getting the last message-id from an empty compact ledger [13476](https://github.com/apache/pulsar/pull/13476)
-- Fixes the NPE in system topics policies service [13469](https://github.com/apache/pulsar/pull/13469)
-- Fix race conditions in closing producers and consumers [13428](https://github.com/apache/pulsar/pull/13428)
-- Fix batch message ack does not decrease the unacked-msg count. [13383](https://github.com/apache/pulsar/pull/13383)
-- [Issue 13194][pulsar-broker] Fix dead loop in BacklogQuotaManager.dropBacklogForTimeLimit [13249](https://github.com/apache/pulsar/pull/13249)
-- Modify return result of NamespacesBase#internalGetPublishRate [13237](https://github.com/apache/pulsar/pull/13237)
-- Optimize ManagedLedger Ledger Ownership Check [13222](https://github.com/apache/pulsar/pull/13222)
-- Close old compacted ledger when open new. [13210](https://github.com/apache/pulsar/pull/13210)
-- fix shedding heartbeat ns [13208](https://github.com/apache/pulsar/pull/13208)
-- Fix when deleting topic with NotFoundException, do not return to client. [13203](https://github.com/apache/pulsar/pull/13203)
-- Update cursor last active timestamp when reseting cursor [13166](https://github.com/apache/pulsar/pull/13166)
-- Remove tenant permission verification when list partitioned-topic [13138](https://github.com/apache/pulsar/pull/13138)
-- Use current resourceUsage value as historyUsage when leader change in ThresholdShedder [13136](https://github.com/apache/pulsar/pull/13136)
-- Don't attempt to delete pending ack store unless transactions are enabled [13041](https://github.com/apache/pulsar/pull/13041)
-- Fix NPE in `PersistentTopic.checkSubscriptionTypesEnable` [12961](https://github.com/apache/pulsar/pull/12961)
-- Fix wrong isEmpty method of ConcurrentOpenLongPairRangeSet [12953](https://github.com/apache/pulsar/pull/12953)
-- Correct param of delete method for v1 topic [12936](https://github.com/apache/pulsar/pull/12936)
-- Clean up the metadata of the non-persistent partitioned topics. [12910](https://github.com/apache/pulsar/pull/12910)
-- Fix topic policy listener deleted by mistake. [12904](https://github.com/apache/pulsar/pull/12904)
-- Fix deleting tenants with active namespaces with 500. [12848](https://github.com/apache/pulsar/pull/12848)
-- [Issue 12757] add broker config isAllowAutoUpdateSchema [12786](https://github.com/apache/pulsar/pull/12786)
-- Remove unused listeners if it have no listeners. [12654](https://github.com/apache/pulsar/pull/12654)
-- Clean up the metadata of the non-persistent partitioned topics. [12550](https://github.com/apache/pulsar/pull/12550)
-- [managedledger] NPE on OpAddEntry while ManagedLedger is closing [12364](https://github.com/apache/pulsar/pull/12364)
-- fix issues 11964, deadlock bug when use key_shared mode [11965](https://github.com/apache/pulsar/pull/11965)
-
-### Build
-- [C++] Fix GCC compilation failure caused by warning macro [14402](https://github.com/apache/pulsar/pull/14402)
-- [C++] Fix Version.h not found when CMake binary directory is customized [13324](https://github.com/apache/pulsar/pull/13324)
-- [Issue 9888] add python3.9 on manylinux2014 build support [10954](https://github.com/apache/pulsar/pull/10954)
-
-### C++ Client
-- Fix GCC compilation failure caused by warning macro [14402](https://github.com/apache/pulsar/pull/14402)
-- Fix pulsar client cpp build fail in gcc-4.8.5 [14053](https://github.com/apache/pulsar/pull/14053)
-- Fix hasMessageAvailable returns wrong value for last message [13883](https://github.com/apache/pulsar/pull/13883)
-- Fix Version.h not found when CMake binary directory is customized [13324](https://github.com/apache/pulsar/pull/13324)
-- Fix in macOS CMake might find error boost-python libs path [13193](https://github.com/apache/pulsar/pull/13193)
-
-### CI
-- Upgrade Windows runner os to windows-2022 and generator [14368](https://github.com/apache/pulsar/pull/14368)
-- Replace deprecated "adopt" OpenJDK distribution with "temurin" in GitHub Actions config [12945](https://github.com/apache/pulsar/pull/12945)
-
-### Pulsar CLI
-- Feat(cli): support autorecovery service in pulsar cli [12985](https://github.com/apache/pulsar/pull/12985)
-- [pulsar-perf] Write histogram files for consume command [12569](https://github.com/apache/pulsar/pull/12569)
-
-### Java Client
-- Fix adding message to list potential issue [14377](https://github.com/apache/pulsar/pull/14377)
-- Fix send to deadLetterTopic not working when reach maxRedeliverCount [14317](https://github.com/apache/pulsar/pull/14317)
-- Fix time unit mismatch in errMsg when producer send fails. [14299](https://github.com/apache/pulsar/pull/14299)
-- Fix PersistentAcknowledgmentsGroupingTracker set BitSet issue. [14260](https://github.com/apache/pulsar/pull/14260)
-- Check ``getTlsTrustStorePath`` NPE when user forget to set it. [14253](https://github.com/apache/pulsar/pull/14253)
-- [Issue 12262] Fix consume failure when BatchReceivePolicy#maxNumBytes < message size [14139](https://github.com/apache/pulsar/pull/14139)
-- Use `scheduleWithFixedDelay` instead of `scheduleAtFixedRate` for java producer batch timer [14125](https://github.com/apache/pulsar/pull/14125)
-- Add a default timeout for OAuth2 Metadata Resolver [14056](https://github.com/apache/pulsar/pull/14056)
-- Fix send chunking message failed when ordering key is set. [13699](https://github.com/apache/pulsar/pull/13699)
-- Fixed Producer semaphore permit release issue [13682](https://github.com/apache/pulsar/pull/13682)
-- Fix the wrong multi-topic has message available behavior [13634](https://github.com/apache/pulsar/pull/13634)
-- Use PulsarByteBufAllocator to allocate buffer for chunks [13536](https://github.com/apache/pulsar/pull/13536)
-- Fix resources leak when create producer failed [13505](https://github.com/apache/pulsar/pull/13505)
-- Fix semaphore and memory leak when chunks failed to enqueue [13454](https://github.com/apache/pulsar/pull/13454)
-- Fix invalid setting of enabled ciphers to fix warning from BoringSSL [13435](https://github.com/apache/pulsar/pull/13435)
-- [Producer] Change the time units from ns to ms [13057](https://github.com/apache/pulsar/pull/13057)
-- Fix consume message order issue when use listener. [13023](https://github.com/apache/pulsar/pull/13023)
-- Use sendAsync instead of send when produce message to retry topic. [12946](https://github.com/apache/pulsar/pull/12946)
-- [Java Client] Avoid IllegalStateException in ClientCnx debug logs [12899](https://github.com/apache/pulsar/pull/12899)
-- [pulsar-client] Add conf backoff values [12520](https://github.com/apache/pulsar/pull/12520)
-- Add log error tracking for semaphore count leak [12410](https://github.com/apache/pulsar/pull/12410)
-
-### Compaction
-- Fix reader skipped remaining compacted data during the topic unloading. [13629](https://github.com/apache/pulsar/pull/13629)
-- Return message ID from compacted ledger while the compaction cursor reach the end of the topic [13533](https://github.com/apache/pulsar/pull/13533)
-- [Broker] Fix getting the last message-id from an empty compact ledger [13476](https://github.com/apache/pulsar/pull/13476)
-
-### Functions
-- Fix(functions): missing runtime set in GoInstanceConfig [13031](https://github.com/apache/pulsar/pull/13031)
-- [function] pulsar admin exposes secrets for function [12950](https://github.com/apache/pulsar/pull/12950)
-
-### Pulsar IO
-- Pulsar admin exposes secret for source and sink [13059](https://github.com/apache/pulsar/pull/13059)
-- Pass client builder if no service url provided to debezium connector [12145](https://github.com/apache/pulsar/pull/12145)
-- [Cherry-pick] Pass client builder to debezium database history [12112](https://github.com/apache/pulsar/pull/12112)
-- Pass client builder if no service url provided to debezium connector [14040](https://github.com/apache/pulsar/pull/14040)
-
-### Key-Shared Subscription
-- [Issue 12885] Fix unordered consuming case in Key_Shared subscription. [12890](https://github.com/apache/pulsar/pull/12890)
-
-### Pulsar Metadata
-- AbstractMetadataStore: invalidate childrenCache correctly when node created [14177](https://github.com/apache/pulsar/pull/14177)
-
-### Metrics
-- Fix: bug when allAll bucket [13467](https://github.com/apache/pulsar/pull/13467)
-
-### Pulsar proxy
-- Fix port exhaustion and connection issues in Pulsar Proxy [14078](https://github.com/apache/pulsar/pull/14078)
-- Allow config of IO and acceptor threads in proxy [14054](https://github.com/apache/pulsar/pull/14054)
-- Remove unnecessary Pulsar Client usage from Pulsar Proxy [13836](https://github.com/apache/pulsar/pull/13836)
-
-### Python Client
-- Apply clang-format check for python wrapper [13418](https://github.com/apache/pulsar/pull/13418)
-
-### Schema
-- Fix parse BigDecimal [14019](https://github.com/apache/pulsar/pull/14019)
-- Fix pulsar use json or avro primitive schema. [12886](https://github.com/apache/pulsar/pull/12886)
-
-### SQL
-- Support protobuf/timestamp [13287](https://github.com/apache/pulsar/pull/13287)
-- Fix time field use error [12249](https://github.com/apache/pulsar/pull/12249)
-
-### Test
-- Improved 9 flaky tests.
-
-### Tools
-- Fix NPE in cmdTopics [13450](https://github.com/apache/pulsar/pull/13450)
-- [pulsar-perf] Support listenerThreads configuration. [12892](https://github.com/apache/pulsar/pull/12892)
-- [docs] Fix doc for pulsar-admin bookies cmd [12542](https://github.com/apache/pulsar/pull/12542)
-
-### Topic policy
-- [Broker] Avoid thread deadlock problem when creating topic policy reader [13837](https://github.com/apache/pulsar/pull/13837)
-- Fixed internal topic effect by InactiveTopicPolicy. [13816](https://github.com/apache/pulsar/pull/13816)
-
-### Transaction
-- Fix topicTransactionBuffer handle null snapshot (#12758) [14510](https://github.com/apache/pulsar/pull/14510)
-- Fix transaction system topic create in loop [12889](https://github.com/apache/pulsar/pull/12889)
-- Fix transaction system topic create in loop. [12749](https://github.com/apache/pulsar/pull/12749)
-
-### Websocket
-- Fix ``ClassCastException`` when user create ``MultiTopicReader``. [14316](https://github.com/apache/pulsar/pull/14316)
-
-### Dependency
-- Upgrade Gson version 2.8.6 to 2.8.9 [13610](https://github.com/apache/pulsar/pull/13610)
-- Upgrade commons-cli to 1.5.0 [14094](https://github.com/apache/pulsar/pull/14094)
-- Bump netty version to 4.1.74.Final [14257](https://github.com/apache/pulsar/pull/14257)
-
-### 2.9.1
-#### 2021-12-20
-
-Apache Pulsar 2.9.1 is a bugfix release, that includes library upgrades for important security issues (like Apache Log4j2).
-It also includes fixes for some breaking changes introduced in 2.9.0.
-
-### Library updates:
-- Bump log4j to 2.16.0 [#13277](https://github.com/apache/pulsar/pull/13277)
-- Upgrade OkHttp3 to address CVE-2021-0341 [#13065](https://github.com/apache/pulsar/pull/13065)
-- Upgrade Netty to 4.1.72 - CVE-2021-43797 [#13328](https://github.com/apache/pulsar/pull/13328)
-
-#### Java Client
-- Fixed a data race on the Producer to get a Connection [#13176](https://github.com/apache/pulsar/pull/13176)
-- Fixed Producer: Send CloseProducer on timeout [#13161](https://github.com/apache/pulsar/pull/13161)
-- Fixed Producer: Use epoch to version Producer's cnx to prevent early delivery of messages [#12779](https://github.com/apache/pulsar/pull/12779)
-- Removed a data race in MultiTopicsConsumerImpl to ensure correct message order [#12456](https://github.com/apache/pulsar/pull/12456)
-- Fixed message order in Consumer issue when use listener [#13023](https://github.com/apache/pulsar/pull/13023)
-- Audience Field Optional is now optional in OAuth2 Client Credentials [#11988](https://github.com/apache/pulsar/pull/11988)
-
-#### Broker
-- Fixed LeaderElectionService.getCurrentLeader and added support for ephemeralOwner in MockZooKeeper [#13066](https://github.com/apache/pulsar/pull/13066)
-- Removed tenant permission verification when list partitioned-topic [#13138](https://github.com/apache/pulsar/pull/13138)
-- Fixed and improve topic ownership assignment [#13069](https://github.com/apache/pulsar/pull/13069)
-- Fixed consume message order issue when use listener.[#13023](https://github.com/apache/pulsar/pull/13023)
-- Fixed ManagedLedger: Do not reuse the Failed OpAddEntry object which lead bundle unloading timeout.[#12993](https://github.com/apache/pulsar/pull/12993)
-- Fixed incompatibility of BacklogQuota in the REST API [#13291](https://github.com/apache/pulsar/pull/13291)
-- Fixed unordered consuming case in Key_Shared subscription.[#12890](https://github.com/apache/pulsar/pull/12890)
-- Fixed the incorrect total size when BrokerEntryMetadata is enabled[#12714](https://github.com/apache/pulsar/pull/12714)
-- Reverted new AuthorizationProvider method [#13133](https://github.com/apache/pulsar/pull/13133)
-
-#### Pulsar Functions
-- Fixed classloader leaks [#12973](https://github.com/apache/pulsar/pull/12973)
-- Fixed Kubernetes Pulsar Functions containers not exposing metrics port for scraping [#12065](https://github.com/apache/pulsar/pull/12065)
-
-### 2.9.0
-#### 2021-11-25
-
-**IMPORTANT NOTICE**
-
-**IT IS NOT RECOMMENDED TO USE PULSAR 2.9.0 ON PRODUCTION ENVIRONMENT** since it does not include the fixes for [Log4j2 vulnerability (CVE-2021-44228)](https://pulsar.apache.org/blog/2021/12/11/Log4j-CVE/) and the [bundle unloading timeout issue](https://github.com/apache/pulsar/pull/12993).
-
-### News and noteworthy
-- PIP-45 Pluggable metadata interface introduced many changes about ZooKeeper metadata management: consistency, resilience, stability, tech debt reduction (less code duplication)
-- Pulsar IO: Oracle Debezium connector, new Schema aware Elasticsearch sink connector
-- Many improvements to the Pulsar clients, with PIP-83, PIP-91, PIP-96 (see below)
-- Geo-replication improvements: PIP-88 replicate schemas across clusters
-- Apache Kafka connect sinks can be run as Pulsar sinks [#9927](https://github.com/apache/pulsar/pull/9927)
-
-### Breaking changes
-- Now Pulsar requires ZooKeeper 3.6.x because it uses the Persistent Recursive Watches feature (see PIP-45)
-- The Discovery Service has been removed. [12119](https://github.com/apache/pulsar/pull/12119)
-- The Pulsar Standalone docker image has been removed. [11657](https://github.com/apache/pulsar/pull/11657)
-- The Pulsar Dashboard docker image has been removed. [11284](https://github.com/apache/pulsar/pull/11284)
-
-### PIPs
-- [PIP 96] Add message payload processor for Pulsar client [#12088](https://github.com/apache/pulsar/pull/12088)
-- [PIP 99] Pulsar Proxy Extensions [#11838](https://github.com/apache/pulsar/pull/11838)
-- [PIP 89] Timed log events [#11944](https://github.com/apache/pulsar/pull/11944)
-- [PIP 82] Tenant and namespace level rate limiting [#11918](https://github.com/apache/pulsar/pull/11918)
-- [PIP 91] Separate lookup timeout from operation timeout [#11627](https://github.com/apache/pulsar/pull/11627)
-- [PIP 88] Replicate schemas across clusters [#11441](https://github.com/apache/pulsar/pull/11441)
-- [PIP 83] Pulsar Reader: Message consumption with pooled buffer [#11725](https://github.com/apache/pulsar/pull/11725)
-- [PIP 64] Rest API Produce message [PIP 64](https://github.com/apache/pulsar/pull/8125)
-- [PIP 45] Pluggable metadata interface [PIP 45](https://github.com/apache/pulsar/wiki/PIP-45%3A-Pluggable-metadata-interface)
-
-### Pulsar IO and Pulsar Functions
-
-- Added Debezium source for Microsoft SQL Server. [12256](https://github.com/apache/pulsar/pull/12256)
-- Upgrading Debezium to 1.7. [12295](https://github.com/apache/pulsar/pull/12295)
-- Allow Pulsar Functions localrun to exit on error. [12278](https://github.com/apache/pulsar/pull/12278)
-- Function: Support for draining workers. [12178](https://github.com/apache/pulsar/pull/12178)
-- Go Functions: support set subscription position. [11990](https://github.com/apache/pulsar/pull/11990)
-- Support protobuf-native schema for functions. [11868](https://github.com/apache/pulsar/pull/11868)
-- Support protobuf schema for pulsar function. [11709](https://github.com/apache/pulsar/pull/11709)
-- Support KEY_BASED batch builder for Java based functions and sources. [11706](https://github.com/apache/pulsar/pull/11706)
-- Upgrade Go client version to 0.6.0. [11477](https://github.com/apache/pulsar/pull/11477)
-- Stop calling the deprecated method Thread.stop() when stopping the function thread in ThreadRuntime. [11401](https://github.com/apache/pulsar/pull/11401)
-
-### Java Client
-- Add partition-change API for producer or consumer interceptors. [12287](https://github.com/apache/pulsar/pull/12287)
-- Fix deadLetterPolicy is not working with key shared subscription under partitioned topic. [12148](https://github.com/apache/pulsar/pull/12148)
-- Fix endless receiveAsync loop in MultiTopicsConsumer. [12044](https://github.com/apache/pulsar/pull/12044)
-- Reduce redundant FLOW requests for non-durable multi-topics consumer. [11802](https://github.com/apache/pulsar/pull/11802)
-- Set and return topic names on message API. [11743](https://github.com/apache/pulsar/pull/11743)
-- Separate lookup timeout from operation timeout (PIP-91). [11627](https://github.com/apache/pulsar/pull/11627)
-- Switch from pretty print to compact print for configs. [11609](https://github.com/apache/pulsar/pull/11609)
-- Java Client: remove usage of reflection while using Pulsar Implementation classes. [11636](https://github.com/apache/pulsar/pull/11636)
-- Add a optional params scope for pulsar oauth2 client. [11931](https://github.com/apache/pulsar/pull/11931)
-- Schema.NATIVE_AVRO: add a version of AUTO_PRODUCE_BYTES that doesn't validate the message in `encode`. [11238](https://github.com/apache/pulsar/pull/11238)
-
-### C++ Client
-- Support configuring optional scope field for OAuth2 authentication. [12305](https://github.com/apache/pulsar/pull/12305)
-- Support setting priority for the consumer. [12076](https://github.com/apache/pulsar/pull/12076)
-- Fixed attempting to connect to multiple IP addresses. [11958](https://github.com/apache/pulsar/pull/11958)
-- Handle error when shutting down client after forks. [11954](https://github.com/apache/pulsar/pull/11954)
-- Move all C symbols into C++ pulsar namespace. [11919](https://github.com/apache/pulsar/pull/11919)
-- Expose getLastMessageId in the Reader API. [11723](https://github.com/apache/pulsar/pull/11723)
-- Add padding characters to base64 encoded protobuf native schema. [11492](https://github.com/apache/pulsar/pull/11492)
-- Fix incorrect connect timeout implementation. [11889](https://github.com/apache/pulsar/pull/11889)
-- Support protobuf native schema. [11388](https://github.com/apache/pulsar/pull/11388)
-
-### Python Client
-- Do not sort schema fields by default. [12232](https://github.com/apache/pulsar/pull/12232)
-- Support setting namespace for python schema. [12175](https://github.com/apache/pulsar/pull/12175)
-- Expose Client.shutdown() method. [11955](https://github.com/apache/pulsar/pull/11955)
-- Ensure producer is keeping the client object alive. [11887](https://github.com/apache/pulsar/pull/11887)
-- Support CryptoKeyReader for Reader API in python clients. [11447](https://github.com/apache/pulsar/pull/11447)
-
-### Proxy
-- Set default httpProxyTimeout to 5 minutes. [12299](https://github.com/apache/pulsar/pull/12299)
-- Fixed NPE in ProxyConnection with no auth data. [12111](https://github.com/apache/pulsar/pull/12111)
-- Set default http proxy request timeout. [11971](https://github.com/apache/pulsar/pull/11971)
-- Fixed Proxy leaking outbound connections. [11848](https://github.com/apache/pulsar/pull/11848)
-
-### Metrics
-- Add support for splitting topic and partition label in Prometheus. [12225](https://github.com/apache/pulsar/pull/12225)
-
-### Library updates
-- Upgrade netty to 4.1.68.Final. [12218](https://github.com/apache/pulsar/pull/12218)
-- Added JLine 2.x for ZK CLI tool. [12102](https://github.com/apache/pulsar/pull/12102)
-- Upgrade aircompressor to 0.20. [11790](https://github.com/apache/pulsar/pull/11790)
-- Upgrade Jetty to 9.4.43.v20210629. [11660](https://github.com/apache/pulsar/pull/11660)
-- Upgrade commons-compress to 1.21. [11345](https://github.com/apache/pulsar/pull/11345)
-- Bump Netty version to 4.1.66.Final. [11344](https://github.com/apache/pulsar/pull/11344)
-- Exclude grpc-okhttp dependency and set okhttp3 & okio version. [11025](https://github.com/apache/pulsar/pull/11025)
-- Use ubuntu:20.04 base image for Pulsar docker images. [11026](https://github.com/apache/pulsar/pull/11026)
-
-### Tiered Storage
-- Fix the potential race condition in the BlobStore readhandler. [12123](https://github.com/apache/pulsar/pull/12123)
-
-### Broker
-- AuthorizationService should use provider's canLookupAsync method. [11777](https://github.com/apache/pulsar/pull/11777)
-- Broker auto refresh bk-client certs to avoid cnx failure after cert refresh. [12107](https://github.com/apache/pulsar/pull/12107)
-- Add multi roles support for authorization. [11341](https://github.com/apache/pulsar/pull/11341)
-
-### Docker
-
-### 2.8.2
-#### 2021-12-20
-
-### Security
-- Upgrade to Log4J 2.17.0 to mitigate CVE-2021-45105 [#13392](https://github.com/apache/pulsar/pull/13392)
-- Upgrade Netty to 4.1.72 - CVE-2021-43797 [#13328](https://github.com/apache/pulsar/pull/13328)
-- Bump log4j to 2.15.0 [#13226](https://github.com/apache/pulsar/pull/13226)
-- Revert new AuthorizationProvider method [#13133](https://github.com/apache/pulsar/pull/13133)
-- Support CLEAR_BACKLOG namespace op after enable auth [#12963](https://github.com/apache/pulsar/pull/12963)
-- Upgrade netty to 4.1.68.Final [#12218](https://github.com/apache/pulsar/pull/12218)
-- Support disabling non-TLS service ports [#11681](https://github.com/apache/pulsar/pull/11681)
-- Upgrade Jetty to 9.4.43.v20210629 [#11660](https://github.com/apache/pulsar/pull/11660)
-
-### Broker
-- Fix and improve topic ownership assignment [#13069](https://github.com/apache/pulsar/pull/13069)
-- Fix LeaderElectionService.getCurrentLeader and add support for empheralOwner in MockZooKeeper [#13066](https://github.com/apache/pulsar/pull/13066)
-- Do not reuse the Failed OpAddEntry object which leads to the bundle unloading timeout. [#12993](https://github.com/apache/pulsar/pull/12993)
-- Remove readerCaches and close reader when exception occurs in SystemTopicBasedTopicPoliciesService [#12873](https://github.com/apache/pulsar/pull/12873)
-- Fix TopicPoliciesCacheNotInitException issue. [#12773](https://github.com/apache/pulsar/pull/12773)
-- Support UNSUBSCRIBE namespace op after enabling auth [#12742](https://github.com/apache/pulsar/pull/12742)
-- Fix race condition in PersistentTopic#addReplicationCluster [#12729](https://github.com/apache/pulsar/pull/12729)
-- Even if always compatible is set, consumers cannot be created [#12721](https://github.com/apache/pulsar/pull/12721)
-- Fix the incorrect total size when BrokerEntryMetadata is enabled [#12714](https://github.com/apache/pulsar/pull/12714)
-- Fix lost compaction data due to compaction properties missed during reset-cursor [#12698](https://github.com/apache/pulsar/pull/12698)
-- Fix TestRunMain test [#12675](https://github.com/apache/pulsar/pull/12675)
-- Support GET_METADATA topic op after enabling auth [#12656](https://github.com/apache/pulsar/pull/12656)
-- Fix false positive ownership check in OwnershipCache#checkOwnership [#12650](https://github.com/apache/pulsar/pull/12650)
-- Optimize exception information for schemas [#12647](https://github.com/apache/pulsar/pull/12647)
-- Add @Test annotation to test methods [#12640](https://github.com/apache/pulsar/pull/12640)
-- Support retry when creating reader of Topic Policies [#12622](https://github.com/apache/pulsar/pull/12622)
-- Fix String should use equals but not ==. [#12619](https://github.com/apache/pulsar/pull/12619)
-- Fix 12614, waitingForPingResponse needs to be modified with volatile for concurrent sence [#12615](https://github.com/apache/pulsar/pull/12615)
-- Cleanup ProxyPublishConsumeTest [#12607](https://github.com/apache/pulsar/pull/12607)
-- Avoid passing OpAddEntry across a thread boundary in asyncAddEntry [#12606](https://github.com/apache/pulsar/pull/12606)
-- Do not move the non-durable cursor position when trimming ledgers while topic with compaction [#12602](https://github.com/apache/pulsar/pull/12602)
-- Allow `GetTopicsOfNamespace` op with `consume` permission [#12600](https://github.com/apache/pulsar/pull/12600)
-- Allow configuring schema compatibility policy for system topics [#12598](https://github.com/apache/pulsar/pull/12598)
-- Cleanup already deleted namespace topics. [#12597](https://github.com/apache/pulsar/pull/12597)
-- Fix additional servlets NAR might extract to null directory [#12585](https://github.com/apache/pulsar/pull/12585)
-- Fix log typo in NamespaceService#checkHeartbeatNamespace [#12582](https://github.com/apache/pulsar/pull/12582)
-- Add OpAddEntry to pendingAddEntries after the state check [#12570](https://github.com/apache/pulsar/pull/12570)
-- Cancel scheduled tasks when deleting ManagedLedgerImpl [#12565](https://github.com/apache/pulsar/pull/12565)
-- Add git branch information for PulsarVersion [#12541](https://github.com/apache/pulsar/pull/12541)
-- Websocket should pass the encryption context to consumers [#12539](https://github.com/apache/pulsar/pull/12539)
-- The count of topics on the bundle is less than 2, skip split [#12527](https://github.com/apache/pulsar/pull/12527)
-- Fix the reader skips compacted data which original ledger been removed [#12522](https://github.com/apache/pulsar/pull/12522)
-- Fix `messageDedup` delete inactive producer name [#12493](https://github.com/apache/pulsar/pull/12493)
-- Optimize the code: remove extra spaces [#12470](https://github.com/apache/pulsar/pull/12470)
-- Future completed twice in the method of impl.MLPendingAckStore#closeAsync [#12362](https://github.com/apache/pulsar/pull/12362)
-- Fix the race of delete subscription and delete topic [#12240](https://github.com/apache/pulsar/pull/12240)
-- Disable stats recorder for built-in PulsarClient [#12217](https://github.com/apache/pulsar/pull/12217)
-- Fix delete authentication policies when deleting topics. [#12215](https://github.com/apache/pulsar/pull/12215)
-- Optimize the memory usage of Cache Eviction [#12045](https://github.com/apache/pulsar/pull/12045)
-- Avoid adding duplicated BrokerEntryMetadata [#12018](https://github.com/apache/pulsar/pull/12018)
-- Fix update ledger list to znode version mismatch failed, ledger not delete [#12015](https://github.com/apache/pulsar/pull/12015)
-- Fix messages in TopicPolicies will never be cleaned up [#11928](https://github.com/apache/pulsar/pull/11928)
-- Fix returned wrong hash ranges for the consumer with the same consumer name [#12212](https://github.com/apache/pulsar/pull/12212)
-- Add Key_Shared metadata to topic stats [#11839](https://github.com/apache/pulsar/pull/11839)
-- Fix build from submodules (broker, transaction coordinator) [#11795](https://github.com/apache/pulsar/pull/11795)
-- Add method to clear up transaction buffer snapshot [#11934](https://github.com/apache/pulsar/pull/11934)
-- Increase the test stability of transactionTest [#11541](https://github.com/apache/pulsar/pull/11541)
-- Add maven.restlet.org repository [#13248](https://github.com/apache/pulsar/pull/13248)
-- Fix and improve topic ownership assignment (#13069) [#13117](https://github.com/apache/pulsar/pull/13117)
-- Evaluate the current protocol version once [#13045](https://github.com/apache/pulsar/pull/13045)
-- Revert "Set default root log level to debug" and make PULSAR_LOG_ROOT_LEVEL default to PULSAR_LOG_LEVEL [#12941](https://github.com/apache/pulsar/pull/12941)
-- Catch exceptions in scheduled tasks to prevent unintended cancellation [#12853](https://github.com/apache/pulsar/pull/12853)
-- Fix producer getting incorrectly removed from topic's `producers` map [#12846](https://github.com/apache/pulsar/pull/12846)
-- Synchronize updates to the inactiveProducers map in MessageD… [#12820](https://github.com/apache/pulsar/pull/12820)
-- Close connection after receiving unexpected SendCommand [#12780](https://github.com/apache/pulsar/pull/12780)
-- Fix namespace policy override ignored when creating subscription [#12699](https://github.com/apache/pulsar/pull/12699)
-- Update lombok to 1.18.22 [#12466](https://github.com/apache/pulsar/pull/12466)
-- Fix skips compacted data for reader/consumer [#12464](https://github.com/apache/pulsar/pull/12464)
-- Remove data race in MultiTopicsConsumerImpl to ensure correct message order [#12456](https://github.com/apache/pulsar/pull/12456)
-- Fix the retry topic's `REAL_TOPIC` & `ORIGIN_MESSAGE_ID` property [#12451](https://github.com/apache/pulsar/pull/12451)
-- Change the producer fence error log to debug level [#12447](https://github.com/apache/pulsar/pull/12447)
-- Reduce the readFailureBackoff time [#12444](https://github.com/apache/pulsar/pull/12444)
-- Fix wrong property name in NamespaceIsolationDataImpl#secondary [#12433](https://github.com/apache/pulsar/pull/12433)
-- Optimize SecurityUtility code flow [#12431](https://github.com/apache/pulsar/pull/12431)
-- Fix compactor skips data from last compacted Ledger [#12429](https://github.com/apache/pulsar/pull/12429)
-- Remove redundant code [#12424](https://github.com/apache/pulsar/pull/12424)
-- Fix some tests not enabled in integration tests [#12417](https://github.com/apache/pulsar/pull/12417)
-- Use weak ref to ClientConnection for timeout task [#12409](https://github.com/apache/pulsar/pull/12409)
-- Fix cherry-pick issue [#12397](https://github.com/apache/pulsar/pull/12397)
-- Fix the null point caused by deleting the system topic policy [#12367](https://github.com/apache/pulsar/pull/12367)
-- Update delete inactive topic configuration documentation [#12350](https://github.com/apache/pulsar/pull/12350)
-- Add log to print exception stack. [#12345](https://github.com/apache/pulsar/pull/12345)
-- Avoid potentially blocking calls to metadata on critical threads [#12339](https://github.com/apache/pulsar/pull/12339)
-- Fix NPE when removing cursor [#12297](https://github.com/apache/pulsar/pull/12297)
-- Print log when configuration is failed to load [#12280](https://github.com/apache/pulsar/pull/12280)
-- Fix incorrect returned last message ID while the `lastConfirmedEntry` with negative entry ID [#12277](https://github.com/apache/pulsar/pull/12277)
-- Fix TTL expiry does not take effect [#12266](https://github.com/apache/pulsar/pull/12266)
-- The loadbalancer should avoid offload the heartbeat namespace [#12252](https://github.com/apache/pulsar/pull/12252)
-- Fix typo of the returned last message ID when the last message ID is from compacted ledger [#12237](https://github.com/apache/pulsar/pull/12237)
-- Add support for splitting topics and partition labels in Prometheus [#12225](https://github.com/apache/pulsar/pull/12225)
-- Fix lost message issues 12221 [#12223](https://github.com/apache/pulsar/pull/12223)
-- Allow to config pulsar client allocator out of memory policy [#12200](https://github.com/apache/pulsar/pull/12200)
-- Remove redundant parameters [#12188](https://github.com/apache/pulsar/pull/12188)
-- Fix incorrect logger numbers in tests [#12168](https://github.com/apache/pulsar/pull/12168)
-- Return the last position of the compacted data while the original data has been deleted [#12161](https://github.com/apache/pulsar/pull/12161)
-- Improve exceptions thrown when handling the schema resource [#12155](https://github.com/apache/pulsar/pull/12155)
-- Fix prefix setting in JWT authn and avoid multi calls for the getProperty [#12132](https://github.com/apache/pulsar/pull/12132)
-- Fix used after recycle issue in OpAddEntry [#12103](https://github.com/apache/pulsar/pull/12103)
-- Bugfix: Fix rackaware placement policy init error [#12097](https://github.com/apache/pulsar/pull/12097)
-- Fix wrong key-hash selector used for new consumers after all the previous consumers disconnected [#12035](https://github.com/apache/pulsar/pull/12035)
-- Fix cherry-pick issue on branch-2.8 [#11982](https://github.com/apache/pulsar/pull/11982)
-- Remove unused variable and unnecessary box in NamespaceBundleFactory [#11975](https://github.com/apache/pulsar/pull/11975)
-- Print position info when can't find next valid position. [#11969](https://github.com/apache/pulsar/pull/11969)
-- Fix NPE ZkBookieRackAffinityMapping [#11947](https://github.com/apache/pulsar/pull/11947)
-- Avoid to infinitely split bundle [#11937](https://github.com/apache/pulsar/pull/11937)
-- Improved logic for pausing replicated subscription snapshots when no traffic [#11922](https://github.com/apache/pulsar/pull/11922)
-- Fix ZKSessionTest.testReacquireLocksAfterSessionLost [#11886](https://github.com/apache/pulsar/pull/11886)
-- Schema compatibility strategy in broker level. [#11856](https://github.com/apache/pulsar/pull/11856)
-- Use TestRetrySupport for BaseMetadataStoreTests to cleanup state between retries [#11771](https://github.com/apache/pulsar/pull/11771)
-- Remove replace_maven-wagon-http-version.sh script [#11718](https://github.com/apache/pulsar/pull/11718)
-- Check null or empty instead of catch NPE [#11655](https://github.com/apache/pulsar/pull/11655)
-- Avoid duplicate deletion of schema [#11640](https://github.com/apache/pulsar/pull/11640)
-- Fix subscribeRateLimiter cannot be disabled [#11614](https://github.com/apache/pulsar/pull/11614)
-- Fix race condition in concurrent schema deletion [#11606](https://github.com/apache/pulsar/pull/11606)
-- Use `get` instead of `join` to avoid getting stuck [#11597](https://github.com/apache/pulsar/pull/11597)
-- Avoid to cal getMaximumRolloverTimeMs everytime [#11513](https://github.com/apache/pulsar/pull/11513)
-- Fix improper class/method/field modifiers [#10837](https://github.com/apache/pulsar/pull/10837)
-- Support max-connection and max-connection-per-IP [#10754](https://github.com/apache/pulsar/pull/10754)
-- Allow Integration Tests Jar to be deployed to Maven central [#12292](https://github.com/apache/pulsar/pull/12292)
-
-### C++ Client
-- Fix libcurl miss auth header when broker return 307 [#13112](https://github.com/apache/pulsar/pull/13112)
-- Define and expose PULSAR_VERSION macro [#12769](https://github.com/apache/pulsar/pull/12769)
-- Fix request timeout for GetLastMessageId doesn't work [#12586](https://github.com/apache/pulsar/pull/12586)
-- Fix connection read error logging [#12492](https://github.com/apache/pulsar/pull/12492)
-- Delay ClientCredentialFlow::initialize to the first authenticate call [#12372](https://github.com/apache/pulsar/pull/12372)
-- Use URL encoded content type for OAuth 2.0 authentication [#12341](https://github.com/apache/pulsar/pull/12341)
-- Handle OAuth 2.0 exceptional cases gracefully [#12335](https://github.com/apache/pulsar/pull/12335)
-- Support configuring optional scope field for OAuth2 authentication [#12305](https://github.com/apache/pulsar/pull/12305)
-- Fix the issue of attempting to connect to multiple IP addresses [#11958](https://github.com/apache/pulsar/pull/11958)
-- Handle error when shutting down client after forks [#11954](https://github.com/apache/pulsar/pull/11954)
-- Move all C symbols into C++ pulsar namespace [#11919](https://github.com/apache/pulsar/pull/11919)
-- Make some cleanup methods thread safe [#11762](https://github.com/apache/pulsar/pull/11762)
-- Turn on more compiler warnings and enforce warnings as errors [#11668](https://github.com/apache/pulsar/pull/11668)
-- Fix use-after-free and constructor bugs in UnAckedMessageTrackerEnabled [#11630](https://github.com/apache/pulsar/pull/11630)
-- Allow partitioned producers to start lazily [#11570](https://github.com/apache/pulsar/pull/11570)
-
-### Functions
-- K8s runtime: force deletion to avoid hung function worker during connector restart [#12504](https://github.com/apache/pulsar/pull/12504)
-- Fix k8s pulsar functions containers not exposing metrics port for scraping [#12065](https://github.com/apache/pulsar/pull/12065)
-- Enable protobuf-native schema support for function [#11868](https://github.com/apache/pulsar/pull/11868)
-- Pass `SubscriptionPosition` from `FunctionDetails` to `FunctionConfig` / `SinkConfig` [#11831](https://github.com/apache/pulsar/pull/11831)
-- Reorganize the context hierarchy for functions [#10631](https://github.com/apache/pulsar/pull/10631)
-- Remove the deprecated API usage in HDFS [#12080](https://github.com/apache/pulsar/pull/12080)
-- Stop OffsetStore when stopping the connector [#12457](https://github.com/apache/pulsar/pull/12457)
-- Support set subscription position [#11990](https://github.com/apache/pulsar/pull/11990)
-- Sync to the latest function proto [#11853](https://github.com/apache/pulsar/pull/11853)
-- Fix classloader leaks [#12973](https://github.com/apache/pulsar/pull/12973)
-- Add missing dependency [#12246](https://github.com/apache/pulsar/pull/12246)
-- ConcurrentHashMap should be used for caching producers [#11820](https://github.com/apache/pulsar/pull/11820)
-- Support KEY_BASED batch builder for Java based functions and sources [#11706](https://github.com/apache/pulsar/pull/11706)
-
-### Pulsar Admin
-- Print topic internal info as formatted JSON [#12709](https://github.com/apache/pulsar/pull/12709)
-- Fix last exit code storage [#12581](https://github.com/apache/pulsar/pull/12581)
-- Fix the issue of failing to update partitions of topics [#11683](https://github.com/apache/pulsar/pull/11683)
-- Perfect judgment conditions of pulsar-admin [#12315](https://github.com/apache/pulsar/pull/12315)
-- Fix log level config for pulsar-admin, pulsar-client and pulsar-perf [#12915](https://github.com/apache/pulsar/pull/12915)
-- Modify exception of set-properties for namespace [#12436](https://github.com/apache/pulsar/pull/12436)
-- Get schema validation enforce add applied [#12349](https://github.com/apache/pulsar/pull/12349)
-
-### Tiered Storage
-- Add retry to tolerate the offload index file read failure [#12452](https://github.com/apache/pulsar/pull/12452)
-- Fix the read performance issue in the offload readAsync [#12443](https://github.com/apache/pulsar/pull/12443)
-- Fix FileSystemManagedLedgerOffloader can not clean up outdated ledger [#12309](https://github.com/apache/pulsar/pull/12309)
-- Fix the potential race condition in the BlobStore readhandler [#12123](https://github.com/apache/pulsar/pull/12123)
-
-### Pulsar SQL
-- Handle message null schema version in PulsarRecordCursor [#12809](https://github.com/apache/pulsar/pull/12809)
-- Pulsar SQL support query big entry data [#12448](https://github.com/apache/pulsar/pull/12448)
-
-### Websocket
-- Fix the batch message ack for WebSocket proxy. [#12530](https://github.com/apache/pulsar/pull/12530)
-- Add debug log for WebSocket. [#12458](https://github.com/apache/pulsar/pull/12458)
-- Remove System.out.println from ConsumerHandler [#11459](https://github.com/apache/pulsar/pull/11459)
-
-### Java Client
-- Remove the uncorrected `VisableTesting` annotation in pulsar-client [#11784](https://github.com/apache/pulsar/pull/11784)
-- Fix packages tool parameter desc [#11809](https://github.com/apache/pulsar/pull/11809)
-- Add an optional params scope for pulsar oauth2 client [#11931](https://github.com/apache/pulsar/pull/11931)
-- Fix producer data race to get cnx [#13176](https://github.com/apache/pulsar/pull/13176)
-- Send CloseProducer on timeout [#13161](https://github.com/apache/pulsar/pull/13161)
-- Let producer reconnect for state RegisteringSchema [#12781](https://github.com/apache/pulsar/pull/12781)
-- Use epoch to version producer's cnx to prevent early de… [#12779](https://github.com/apache/pulsar/pull/12779)
-- Pulsar Client: restore SchemaInfo.builder() API [#12673](https://github.com/apache/pulsar/pull/12673)
-- Remove invalid call to Thread.currentThread().interrupt(); [#12652](https://github.com/apache/pulsar/pull/12652)
-- Add additional error handling in auto partition update task MultiTopicsConsumerImpl [#12620](https://github.com/apache/pulsar/pull/12620)
-- Fix invalid firstSentAt in log message when timeout first time [#12588](https://github.com/apache/pulsar/pull/12588)
-- Update producer stats when producer close [#12500](https://github.com/apache/pulsar/pull/12500)
-- 'StartMessageId' and 'RollbackDuration' not working in MultiTopicsReader for non-partitioned topics [#12308](https://github.com/apache/pulsar/pull/12308)
-- Use failPendingMessages to ensure proper cleanup [#12259](https://github.com/apache/pulsar/pull/12259)
-- Auto-recovery after exception like out of direct memory [#12170](https://github.com/apache/pulsar/pull/12170)
-- Fix endless receiveAsync loop in MultiTopicsConsumer [#12044](https://github.com/apache/pulsar/pull/12044)
-- Make Audience Field Optional in OAuth2 Client Credentials [#11988](https://github.com/apache/pulsar/pull/11988)
-- Forget to update memory usage on producer close [#11906](https://github.com/apache/pulsar/pull/11906)
-- Fix ConcurrentModificationException in sendAsync [#11884](https://github.com/apache/pulsar/pull/11884)
-- Hide option -s and substitute -ss(0) for it [#11828](https://github.com/apache/pulsar/pull/11828)
-- Fix seek at batchIndex level receive duplicated messages [#11826](https://github.com/apache/pulsar/pull/11826)
-- Reduce redundant FLOW requests for non-durable multi-topics consumer [#11802](https://github.com/apache/pulsar/pull/11802)
-- Add close method in the class of NegativeAcksTracker [#12469](https://github.com/apache/pulsar/pull/12469)
-- Fix a typo in UnAckedMessageTracker [#12467](https://github.com/apache/pulsar/pull/12467)
-- Fix message being ignored when the non-persistent topic reader reconnect. [#12348](https://github.com/apache/pulsar/pull/12348)
-- Fix deadLetterPolicy is not working with key shared subscription under partitioned topic [#12148](https://github.com/apache/pulsar/pull/12148)
-- Forget to call SendCallback on producer close [#11939](https://github.com/apache/pulsar/pull/11939)
-
-### CLI
-- Enable CLI to publish non-batched messages [#12641](https://github.com/apache/pulsar/pull/12641)
-- Make it possible to disable poolMessages [#12108](https://github.com/apache/pulsar/pull/12108)
-- Add total messages when periodic printing throughput [#12084](https://github.com/apache/pulsar/pull/12084)
-- Make it possible to disable poolMessages [#12090](https://github.com/apache/pulsar/pull/12090)
-
-### Python Client
-- Python schema support custom Avro configurations for Enum type [#12642](https://github.com/apache/pulsar/pull/12642)
-- Fix frequent segmentation fault of Python tests by refactoring ExecutorService [#12427](https://github.com/apache/pulsar/pull/12427)
-- Support setting namespace for python schema [#12175](https://github.com/apache/pulsar/pull/12175)
-- Force Python CI to use earlier version of Protobuf which supports Python2 [#12058](https://github.com/apache/pulsar/pull/12058)
-- py::call_method error without mutating internal state [#11840](https://github.com/apache/pulsar/pull/11840)
-- Python client support using custom Avro schema definition [#12516](https://github.com/apache/pulsar/pull/12516)
-- Remove python3 from vcpkg.json [#12092](https://github.com/apache/pulsar/pull/12092)
-- Provide __str__ operator for BytesSchema [#12593](https://github.com/apache/pulsar/pull/12593)
-- Do not sort schema fields by default [#12232](https://github.com/apache/pulsar/pull/12232)
-- Make python3 the default python in java-test-image [#12130](https://github.com/apache/pulsar/pull/12130)
-- Expose Client.shutdown() method [#11955](https://github.com/apache/pulsar/pull/11955)
-
-### Unit Test
-- Broker resource group test optimize fail msg [#12438](https://github.com/apache/pulsar/pull/12438)
-- Fix windows test path problem [#12398](https://github.com/apache/pulsar/pull/12398)
-- Make AuthenticationTokenTest to run on windows [#12329](https://github.com/apache/pulsar/pull/12329)
-- Use correct line separator instead of \n [#12143](https://github.com/apache/pulsar/pull/12143)
-
-### Bookkeeper
-- Add readWorkerThreadsThrottlingEnabled to conf/bookkeeper.conf [#12666](https://github.com/apache/pulsar/pull/12666)
-- UseV2WireProtocol for bookkeeper autorecovery [#12311](https://github.com/apache/pulsar/pull/12311)
-
-### Proxy
-- Reduce the severity of log "refreshing key manager" in KeyManagerProxy [#12594](https://github.com/apache/pulsar/pull/12594)
-- Set default HTTP proxy request timeout [#11971](https://github.com/apache/pulsar/pull/11971)
-- Set default httpProxyTimeout to 5 minutes [#12299](https://github.com/apache/pulsar/pull/12299)
-- Fix Pulsar Proxy to re-use authentication instance [#12245](https://github.com/apache/pulsar/pull/12245)
-- Fix NPE in ProxyConnection with no auth data [#12111](https://github.com/apache/pulsar/pull/12111)
-- Fix ProxyConnection to check for existence of auth_data field [#12057](https://github.com/apache/pulsar/pull/12057)
-
-### 2.8.1
-#### 2021-09-10
-### Broker
-- Fix the issue of all web threads get stuck when deleting a namespace [#11596](https://github.com/apache/pulsar/pull/11596)
-- Improve error logs in BacklogQuotaManager [#11469](https://github.com/apache/pulsar/pull/11469)
-- Solve the issue of precise rate limiting does not take effect [#11446](https://github.com/apache/pulsar/pull/11446)
-- Fix replicated subscriptions direct memory leak [#11396](https://github.com/apache/pulsar/pull/11396)
-- Change ContextClassLoader to NarClassLoader in ProtocolHandler [#11276](https://github.com/apache/pulsar/pull/11276)
-- Fix the issue of ledger rollover scheduled tasks were executed before reaching the ledger maximum rollover time [#11116](https://github.com/apache/pulsar/pull/11116)
-- Fix publish_time not set error when broker entry metadata enable without AppendBrokerTimestampMetadataInterceptor [#11014](https://github.com/apache/pulsar/pull/11014)
-- Fix parseMessageMetadata error cause by not skip broker entry metadata [#10968](https://github.com/apache/pulsar/pull/10968)
-- Fix issue where Key_Shared consumers could get stuck [#10920](https://github.com/apache/pulsar/pull/10920)
-- Fix throwable exception not thrown [#10863](https://github.com/apache/pulsar/pull/10863)
-- Handle multiple topic creation for the same topic-name in broker [#10847](https://github.com/apache/pulsar/pull/10847)
-- Add REST API to enable or disable replicated subscriptions [#10790](https://github.com/apache/pulsar/pull/10790)
-- Fix issue that message ordering could be broken when redelivering messages on Key_Shared subscription [#10762](https://github.com/apache/pulsar/pull/10762)
-- Fix set-publish-rate when using preciseTopicPublishRateLimiterEnable=true [#10384](https://github.com/apache/pulsar/pull/10384)
-- Upgrade BookKeeper version to resolve the BouncyCastle issue [#11759](https://github.com/apache/pulsar/pull/11759)
-- Fix getPreviousPosition NPE [#11621](https://github.com/apache/pulsar/pull/11621)
-- Remove duplicated configuration [#11283](https://github.com/apache/pulsar/pull/11283)
-- Source tarball: apply executable file permissions to shell scripts [#11858](https://github.com/apache/pulsar/pull/11858)
-- Fix java_test_functions build failed [#11829](https://github.com/apache/pulsar/pull/11829)
-- Fix generate javadoc for kafka-connect-adaptor failed [#11807](https://github.com/apache/pulsar/pull/11807)
-- Fix unnecessary user interactions when building pulsar-standalone image [#11623](https://github.com/apache/pulsar/pull/11623)
-- Do not expose meaningless stats for publisher [#11454](https://github.com/apache/pulsar/pull/11454)
-- Add metrics storageLogicalSize for the TopicStats and NamespaceStats [#11430](https://github.com/apache/pulsar/pull/11430)
-- Compress managed ledger info [#11490](https://github.com/apache/pulsar/pull/11490)
-- Print message metadata when getting message by id [#11092](https://github.com/apache/pulsar/pull/11092)
-- Query parameter "negativeAckRedeliveryDelay" should be effective even if DLQ is disabled [#11495](https://github.com/apache/pulsar/pull/11495)
-- Fix websocket TLS bug [#11243](https://github.com/apache/pulsar/pull/11243)
-- Fix the Pulsar Proxy flaky test (Collector already registered that provides name: jvm_memory_direct_bytes_used) [#11900](https://github.com/apache/pulsar/pull/11900)
-- Fix flaky test testReacquireLocksAfterSessionLost [#11815](https://github.com/apache/pulsar/pull/11815)
-- Fix flaky test testUpdateDynamicLocalConfiguration [#11115](https://github.com/apache/pulsar/pull/11115)
-- Fix flaky test testBrokerRanking [#11114](https://github.com/apache/pulsar/pull/11114)
-- Fix flaky test in AdminApiOffloadTest [#11028](https://github.com/apache/pulsar/pull/11028)
-- Fix the flaky test in the ManagedLedgerTest [#11016](https://github.com/apache/pulsar/pull/11016)
-- Make Metadata ZKSessionTest less Flaky [#10955](https://github.com/apache/pulsar/pull/10955)
-- Make MetadataCacheTest reliable. [#10877](https://github.com/apache/pulsar/pull/10877)
-- Fix pulsar_standalone docker image build failed [#11862](https://github.com/apache/pulsar/pull/11862)
-- Producer getting producer busy is removing existing producer from list [#11804](https://github.com/apache/pulsar/pull/11804)
-- Revert PR 11594 to avoid copy data to direct buffer [#11792](https://github.com/apache/pulsar/pull/11792)
-- Upgrade aircompressor to 0.20 [#11790](https://github.com/apache/pulsar/pull/11790)
-- Fix wrappedBuffer always using the same block of memory [#11782](https://github.com/apache/pulsar/pull/11782)
-- Fix com.squareup.okhttp-okhttp-2.7.4.jar unaccounted for in LICENSE bug [#11769](https://github.com/apache/pulsar/pull/11769)
-- Handle NPE and memory leak when full key range isn't covered with active consumers [#11749](https://github.com/apache/pulsar/pull/11749)
-- Call .release() when discarding entry to prevent direct memory leak [#11748](https://github.com/apache/pulsar/pull/11748)
-- Avoid duplicated disconnecting producers after fail to add entry[#11741](https://github.com/apache/pulsar/pull/11741)
-- Expose compaction metrics to Prometheus [#11739](https://github.com/apache/pulsar/pull/11739)
-- Fix the topic in a fenced state and can not recover[#11737](https://github.com/apache/pulsar/pull/11737)
-- Remove subscription when closing Reader on non-persistent topics [#11731](https://github.com/apache/pulsar/pull/11731)
-- Fix branch-2.8 cherry-pick issue. [#11694](https://github.com/apache/pulsar/pull/11694)
-- KeyShared dispatcher on non-persistent topics was not respecting consumer flow-control [#11692](https://github.com/apache/pulsar/pull/11692)
-- Fix the bug, can not update topic when the update topicName is contained by an existed topic as a part [#11686](https://github.com/apache/pulsar/pull/11686)
-- If a topic has compaction policies configured, we must ensure the subscription is always pre-created [#11672](https://github.com/apache/pulsar/pull/11672)
-- Fix testSetReplicatedSubscriptionStatus run failed [#11661](https://github.com/apache/pulsar/pull/11661)
-- Fix Pulsar didn't respond error messages when throw InterceptException [#11650](https://github.com/apache/pulsar/pull/11650)
-- Fix license mismatch [#11645](https://github.com/apache/pulsar/pull/11645)
-- Remove unnecessary jar name in LICENSE files [#11644](https://github.com/apache/pulsar/pull/11644)
-- Fix java.lang.NoSuchMethodError: java.nio.ByteBuffer.position(I)Ljava/nio/ByteBuffer when enabling topic metadata compression [#11594](https://github.com/apache/pulsar/pull/11594)
-- Fix decode compression managedLedgerInfo data [#11569](https://github.com/apache/pulsar/pull/11569)
-- Fix data lost when using earliest position to subscribe to a topic [#11547](https://github.com/apache/pulsar/pull/11547)
-- Add test for auto-created partitioned system topic [#11545](https://github.com/apache/pulsar/pull/11545)
-- Replace orElse with orElseGet to avoid calling too many times. [#11542](https://github.com/apache/pulsar/pull/11542)
-- Fix the schema deletion when deleting topic with delete schema [#11501](https://github.com/apache/pulsar/pull/11501)
-- Add metrics for writing or reading size of cursor [#11500](https://github.com/apache/pulsar/pull/11500)
-- Do not create system topic for heartbeat namespace [#11499](https://github.com/apache/pulsar/pull/11499)
-- Add additional servlet support to broker [#11498](https://github.com/apache/pulsar/pull/11498)
-- Add metrics [AddEntryWithReplicasBytesRate] for namespace [#11472](https://github.com/apache/pulsar/pull/11472)
-- Deep copy the tenants to avoid concurrent sort exception [#11463](https://github.com/apache/pulsar/pull/11463)
-- Reduce the probability of cache inconsistencies [#11423](https://github.com/apache/pulsar/pull/11423)
-- Reduce integration test memory usage in CI [#11414](https://github.com/apache/pulsar/pull/11414)
-- Swap getTopicReference(topic) with serviceUnit.includes to reduce calling getTopicReference [#11405](https://github.com/apache/pulsar/pull/11405)
-- Invalidate the read handle after all cursors are consumed[#11389](https://github.com/apache/pulsar/pull/11389)
-- Parallel Precise Publish Rate Limiting Fix [#11372](https://github.com/apache/pulsar/pull/11372)
-- Fix concurrency issues in NarUnpacker [#11343](https://github.com/apache/pulsar/pull/11343)
-- Close the replicator and replication client when delete cluster[#11342](https://github.com/apache/pulsar/pull/11342)
-- Add multi roles support for authorization [#11341](https://github.com/apache/pulsar/pull/11341)
-- Fix NPE when unloading persistent partitioned topic [#11310](https://github.com/apache/pulsar/pull/11310)
-- Fixed retention of keys in compaction [#11287](https://github.com/apache/pulsar/pull/11287)
-- Fix missing replicator metrics [#11264](https://github.com/apache/pulsar/pull/11264)
-- Simplify managedLedger retention trim logic [#11255](https://github.com/apache/pulsar/pull/11255)
-- Fix retention size policy delete too much ledgers [#11242](https://github.com/apache/pulsar/pull/11242)
-- Fix init WebSocketService with ClusterData [#11234](https://github.com/apache/pulsar/pull/11234)
-- Make the compaction phase one loop timeout configurable [#11206](https://github.com/apache/pulsar/pull/11206)
-- Fixed using CommandSubscribe.getConsumerName() without checking [#11199](https://github.com/apache/pulsar/pull/11199)
-- Fix some typos of the PersistentTopics [#11187](https://github.com/apache/pulsar/pull/11187)
-- Fix failing auth test. [#11186](https://github.com/apache/pulsar/pull/11186)
-- Fix the deadlock when using hasMessageAvailableAsync and readNextAsync [#11183](https://github.com/apache/pulsar/pull/11183)
-- Fix compaction entry read exception [#11175](https://github.com/apache/pulsar/pull/11175)
-- Set -Dio.netty.tryReflectionSetAccessible=true for pulsar processes [#11138](https://github.com/apache/pulsar/pull/11138)
-- Fix broker dispatch byte rate limiter. [#11135](https://github.com/apache/pulsar/pull/11135)
-- Change test group to broker for ReplicatorTest and fix the test [#11134](https://github.com/apache/pulsar/pull/11134)
-- Fix subscription permission not working in reset cursor [#11132](https://github.com/apache/pulsar/pull/11132)
-- Fix Flaky-test: [TopicFromMessageTest].[testMultiTopicConsumerBatchShortName [#11125](https://github.com/apache/pulsar/pull/11125)
-- Fix the timestamp description for resetCursor [#11121](https://github.com/apache/pulsar/pull/11121)
-- Fix MsgDropRate missing from NonPersistentTopics stats output. [#11119](https://github.com/apache/pulsar/pull/11119)
-- Fix GetListInBundle return all Topics in bundle [#11110](https://github.com/apache/pulsar/pull/11110)
-- Added missing configuration entries [#11095](https://github.com/apache/pulsar/pull/11095)
-- Fix inputs to return a list of topic [#11094](https://github.com/apache/pulsar/pull/11094)
-- Add authoritative flag for topic policy to avoid redirect loop [#11051](https://github.com/apache/pulsar/pull/11051)
-- Made the PulsarClusterMetadataTeardown deletes idempotent [#11042](https://github.com/apache/pulsar/pull/11042)
-- Fix flaky test testEnableAndDisableTopicDelayedDelivery [#11009](https://github.com/apache/pulsar/pull/11009)
-- Do not expose meaningless stats for consumers[#11005](https://github.com/apache/pulsar/pull/11005)
-- Fix NoClassDefFoundError - io.airlift.compress.lz4.UnsafeUtil [#10983](https://github.com/apache/pulsar/pull/10983)
-- Fix direct memory leak in getLastMessageId [#10977](https://github.com/apache/pulsar/pull/10977)
-- Fix the backlog issue with --precise-backlog=true [#10966](https://github.com/apache/pulsar/pull/10966)
-- Fix create partitioned topic in replicated namespace [#10963](https://github.com/apache/pulsar/pull/10963)
-- Fix incorrect port of advertisedListener [#10961](https://github.com/apache/pulsar/pull/10961)
-- Fix NonRecoverableLedgerException when get last message ID by Reader [#10957](https://github.com/apache/pulsar/pull/10957)
-- Fix compaction not working for system topic [#10941](https://github.com/apache/pulsar/pull/10941)
-- Fix peek message failure when broker entry metadata is enabled [#10924](https://github.com/apache/pulsar/pull/10924)
-- Fix the unit tests for the websocket and run tests under websocket group [#10921](https://github.com/apache/pulsar/pull/10921)
-- When the Replicator is enabled, no managedLedger is created when updating the number of partitions [#10910](https://github.com/apache/pulsar/pull/10910)
-- Correct code example in transaction doc [#10901](https://github.com/apache/pulsar/pull/10901)
-- When topic does not exist, optimize the prompt message [#10845](https://github.com/apache/pulsar/pull/10845)
-
-### Topic Policy
-- Refine topic level backlog quota policies warning log [#11863](https://github.com/apache/pulsar/pull/11863)
-- Avoid redundant calls for getting the offload policies from the offloader [#11629](https://github.com/apache/pulsar/pull/11629)
-- Fix some topic policy operation without backoff [#11560](https://github.com/apache/pulsar/pull/11560)
-- Add backoff for setting for getting topic policies[#11487](https://github.com/apache/pulsar/pull/11487)
-- Disable replicating system topic across clusters[#11376](https://github.com/apache/pulsar/pull/11376)
-- When deleting a topic, delete the topic policy together[#11316](https://github.com/apache/pulsar/pull/11316)
-- Fix using partitioned topic name to get Policy [#11294](https://github.com/apache/pulsar/pull/11294)
-- Fix replay topic policy message not work [#11136](https://github.com/apache/pulsar/pull/11136)
-- Fix race condition of the SystemTopicBasedTopicPoliciesService [#11097](https://github.com/apache/pulsar/pull/11097)
-- Fix retention policy in topic policy not work [#11021](https://github.com/apache/pulsar/pull/11021)
-- Fix potential data lost on the system topic when topic compaction have not triggered yet [#11003](https://github.com/apache/pulsar/pull/11003)
-- Make getTopicPoliciesAsyncWithRetry as a default method [#11518](https://github.com/apache/pulsar/pull/11518)
-
-### Proxy
-- Fixed Proxy leaking outbound connections [#11848](https://github.com/apache/pulsar/pull/11848)
-
-### Functions
-- Support protobuf schema for Pulsar function [#11709](https://github.com/apache/pulsar/pull/11709)
-- Fix cast exception occurs if function/source/sink type is ByteBuffer [#11611](https://github.com/apache/pulsar/pull/11611)
-- Fix source stats exposing empty exceptions list [#11478](https://github.com/apache/pulsar/pull/11478)
-- Set exposePulsarAdmin to true if enabled [#11417](https://github.com/apache/pulsar/pull/11417)
-- Add instanceId and fqn into log message properties [#11399](https://github.com/apache/pulsar/pull/11399)
-- Fix tls_validate_hostname is not supported in python functions runtime [#11087](https://github.com/apache/pulsar/pull/11087)
-- Use the subscription name defined in function details [#11076](https://github.com/apache/pulsar/pull/11076)
-- Fix build failure because of spotbugs [#10792](https://github.com/apache/pulsar/pull/10792)
-- Use keyword argument to create pulsar_client [#11080](https://github.com/apache/pulsar/pull/11080)
-
-### Java Client
-- Fixed accessing MessageImpl after it was enqueued on user queue [#11824](https://github.com/apache/pulsar/pull/11824)
-- Remove consumer reference from PulsarClient on subscription failure [#11758](https://github.com/apache/pulsar/pull/11758)
-- Clean up MultiTopicsConsumerImpl reference on consumer creation failure [#11754](https://github.com/apache/pulsar/pull/11754)
-- Fix null MessageId may be passed to its compareTo() method [#11607](https://github.com/apache/pulsar/pull/11607)
-- Fix Consumer listener does not respect receiver queue size [#11455](https://github.com/apache/pulsar/pull/11455)
-- Avoid infinite waiting for consumer close [#11347](https://github.com/apache/pulsar/pull/11347)
-- Fix non-persistent topic get partitioned metadata error on discovery [#10806](https://github.com/apache/pulsar/pull/10806)
-- Add AvroSchema UUID support fix [#10428](https://github.com/apache/pulsar/pull/10428)
-- Handle receiveAsync() failures in MultiTopicsConsumer [#11843](https://github.com/apache/pulsar/pull/11843)
-- Fix bin/pulsar-client produce not supporting v2 topic name through websocket [#11069](https://github.com/apache/pulsar/pull/11069)
-- Fixed race condition on multi-topic consumer [#11764](https://github.com/apache/pulsar/pull/11764)
-- Forget to update memory usage on message send timeout [#11761](https://github.com/apache/pulsar/pull/11761)
-- Fixed block forever bug in Consumer.batchReceive [#11691](https://github.com/apache/pulsar/pull/11691)
-- Fix add listenerName for geo-replicator [#10779](https://github.com/apache/pulsar/pull/10779)
-
-### C++ Client
-- Use same regex code at ZTSClient [#11323](https://github.com/apache/pulsar/pull/11323)
-- Use sendRequestWithId to add timeout to hasMessageAvailable [#11600](https://github.com/apache/pulsar/pull/11600)
-- Fix bugs that were not exposed by broken C++ CI before [#11557](https://github.com/apache/pulsar/pull/11557)
-- Simple implementation of getting number of references from C++ client [#11535](https://github.com/apache/pulsar/pull/11535)
-- Fix brew error in site docs to compile C++ client. [#11512](https://github.com/apache/pulsar/pull/11512)
-- Support Windows Debug mode build [#11302](https://github.com/apache/pulsar/pull/11302)
-- Fix missed header for some compilers [#11152](https://github.com/apache/pulsar/pull/11152)
-- Fix boost download link in Dockerfile [#11129](https://github.com/apache/pulsar/pull/11129)
-- Fix Setting KeySharedMeta in SubscribeCommand [#11088](https://github.com/apache/pulsar/pull/11088)
-- Fix Windows 32 bits compile and runtime failures [#11082](https://github.com/apache/pulsar/pull/11082)
-- Add connection timeout configuration [#11029](https://github.com/apache/pulsar/pull/11029)
-- Fix Windows build issues about static library [#10956](https://github.com/apache/pulsar/pull/10956)
-- Fix incorrect connect timeout implementation [#11889](https://github.com/apache/pulsar/pull/11889)
-- Fix CPP build not failing when tests fail [#11575](https://github.com/apache/pulsar/pull/11575)
-- Avoid throwing exceptions when setting socket option [#11329](https://github.com/apache/pulsar/pull/11329)
-
-### Python Client
-- Fix redefined Record or Enum in Python schema [#11595](https://github.com/apache/pulsar/pull/11595)
-- Fix Python doc generate [#11585](https://github.com/apache/pulsar/pull/11585)
-- Fix Python schema array map with record [#11530](https://github.com/apache/pulsar/pull/11530)
-- Fixed import when AvroSchema is not being used [#11034](https://github.com/apache/pulsar/pull/11034)
-- Fix deadlock caused by ExecutorService::close [#11882](https://github.com/apache/pulsar/pull/11882)
-- Fixed crash when using Python logger [#10981](https://github.com/apache/pulsar/pull/10981)
-- Ensure producer is keeping the client object alive [#11887](https://github.com/apache/pulsar/pull/11887)
-- Fix fields that are ignoring the required key argument [#11508](https://github.com/apache/pulsar/pull/11508)
-- Fix handle complex schema [#11400](https://github.com/apache/pulsar/pull/11400)
-- Check if the record is not None [#11559](https://github.com/apache/pulsar/pull/11559)
-
-### Security
-- Upgrade commons-compress to 1.21 [#11345](https://github.com/apache/pulsar/pull/11345)
-- Fix GetTopicsOfNamespace with binary lookup service not check auth [#11172](https://github.com/apache/pulsar/pull/11172)
-- Use ubuntu:20.04 base image for Pulsar docker images [#11026](https://github.com/apache/pulsar/pull/11026)
-- Upgrade vertx to 3.9.8 to address CVE-2019-17640 [#10889](https://github.com/apache/pulsar/pull/10889)
-- Exclude and remove freebuilder dependency [#10869](https://github.com/apache/pulsar/pull/10869)
-- Upgrade bouncycastle version to 1.69 [#10867](https://github.com/apache/pulsar/pull/10867)
-- Upgrade K8s client-java to 12.0.1 [#10866](https://github.com/apache/pulsar/pull/10866)
-- Upgrade caffeine to 2.9.1 [#10865](https://github.com/apache/pulsar/pull/10865)
-- Upgrade commons-codec to 1.15 [#10864](https://github.com/apache/pulsar/pull/10864)
-- Load credentials from secrets for Kinesis connectors [#10822](https://github.com/apache/pulsar/pull/10822)
-- Forbid to read other topic's data in managedLedger layer [#11912](https://github.com/apache/pulsar/pull/11912)
-- Bump Netty version to 4.1.66.Final [#11344](https://github.com/apache/pulsar/pull/11344)
-
-### Transaction
-- Pending ack set managed ledger config true [#11494](https://github.com/apache/pulsar/pull/11494)
-- Add getTxnID method in Transaction.java [#11438](https://github.com/apache/pulsar/pull/11438)
-- Fix direct memory leak related to commit and abort markers [#11407](https://github.com/apache/pulsar/pull/11407)
-- Fix transaction buffer client handle endTxn op when topic or sub have been deleted[#11304](https://github.com/apache/pulsar/pull/11304)
-- Fix the transaction markers that are not deleted as expected[#11126](https://github.com/apache/pulsar/pull/11126)
-- Fix delete sub then delete pending ack[#11023](https://github.com/apache/pulsar/pull/11023)
-- Prevent NPE in case of closeAsync() without a successful execution of startAsync() [#10948](https://github.com/apache/pulsar/pull/10948)
-- Fixed possible deadlock in the initialization of MLTransactionLog [#11194](https://github.com/apache/pulsar/pull/11194)
-- Fix broker init transaction related topic. [#11022](https://github.com/apache/pulsar/pull/11022)
-
-### Pulsar Admin
-- Fix pulsar admin method:getMessageById[#11852](https://github.com/apache/pulsar/pull/11852)
-- Allow create functions with package URL [#11666](https://github.com/apache/pulsar/pull/11666)
-- Add compacted topic metrics for TopicStats in CLI [#11564](https://github.com/apache/pulsar/pull/11564)
-- Fix time based backlog quota. [#11509](https://github.com/apache/pulsar/pull/11509)
-- Add offload ledger info for admin topics stats [#11465](https://github.com/apache/pulsar/pull/11465)
-- Add complete metadata for admin.topics().examineMessages [#11443](https://github.com/apache/pulsar/pull/11443)
-- Remove duplicate check for replicationClusterSet [#11429](https://github.com/apache/pulsar/pull/11429)
-- Pulsar Admin List Subscription lists only subscriptions created for Partition-0 when partition specific subscriptions are created [#11355](https://github.com/apache/pulsar/pull/11355)
-- Expose broker entry metadata and deliverAtTime to peekMessages/getMessages [#11279](https://github.com/apache/pulsar/pull/11279)
-- Allow null to be set as namespace level subscription TTL [#11253](https://github.com/apache/pulsar/pull/11253)
-- Enable peeking encrypted batch messages [#11244](https://github.com/apache/pulsar/pull/11244)
-- Fix async response filter [#11052](https://github.com/apache/pulsar/pull/11052)
-- Add error log for schema admin operation [#11427](https://github.com/apache/pulsar/pull/11427)
-
-### Tiered Storage
-- OffloadPoliciesImplBuilder missing method and not implements OffloadPolicies.Builder [#11453](https://github.com/apache/pulsar/pull/11453)
-- Remove unused listener to reduce creating executor pool [#11215](https://github.com/apache/pulsar/pull/11215)
-
-### Pulsar IO
-- Make KafkaSourceRecord ack() non-blocking to avoid deadlock [#11435](https://github.com/apache/pulsar/pull/11435)
-- Allow Sinks to use native AVRO and JSON [#11322](https://github.com/apache/pulsar/pull/11322)
-- Refine the key in redis sink when key is null [#11192](https://github.com/apache/pulsar/pull/11192)
-- Change the nar package name for pulsar-io-kafka-connect-adaptor [#10976](https://github.com/apache/pulsar/pull/10976)
-
-### 2.8.0
-
-#### 2021-06-12
-### Update notice
-
-Due to a [breaking change in the Schema API](https://github.com/apache/pulsar/pull/10878), it may happen that some Pulsar Functions or Pulsar IO connectors fail to work,
-throwing an `IncompatibleClassChangeError`.
-
-In this case, you need to rebuild your Function using Apache Pulsar 2.8.0 as a dependency and redeploy it.
-
-If you are running on Kubernetes, you can temporarily let the Functions Worker pod run with a previous version of Pulsar
-in order to not cause downtime.
-
-For more context about this issue, see [[Pulsar Functions and IO] Cannot upgrade Function built for Pulsar 2.7 to Pulsar 2.8](https://github.com/apache/pulsar/issues/11338).
-
-#### PIPs
-- [PIP 45] Pluggable metadata interface [#9148](https://github.com/apache/pulsar/pull/9148) [#9221](https://github.com/apache/pulsar/pull/9221) [#9240](https://github.com/apache/pulsar/pull/9240) [#9273](https://github.com/apache/pulsar/pull/9273) [#9274](https://github.com/apache/pulsar/pull/9274) [#9338](https://github.com/apache/pulsar/pull/9338) [#9346](https://github.com/apache/pulsar/pull/9346) [#9351](https://github.com/apache/pulsar/pull/9351) [#9412](https://github.com/apache/pu [...]
-- [PIP 50] Package management service [#8637](https://github.com/apache/pulsar/pull/8637) [#8680](https://github.com/apache/pulsar/pull/8680) [#8744](https://github.com/apache/pulsar/pull/8744) [#8764](https://github.com/apache/pulsar/pull/8764) [#8816](https://github.com/apache/pulsar/pull/8816) [#8817](https://github.com/apache/pulsar/pull/8817) [#8858](https://github.com/apache/pulsar/pull/8858) [#8861](https://github.com/apache/pulsar/pull/8861) [#8893](https://github.com/apache/puls [...]
-- [PIP 68] Exclusive producer [#8685](https://github.com/apache/pulsar/pull/8685) [#8992](https://github.com/apache/pulsar/pull/8992) [#9554](https://github.com/apache/pulsar/pull/9554) [#9600](https://github.com/apache/pulsar/pull/9600)
-- [PIP 70] Lightweight broker entry metadata [#8618](https://github.com/apache/pulsar/pull/8618) [#9067](https://github.com/apache/pulsar/pull/9067) [#9088](https://github.com/apache/pulsar/pull/9088) [#9091](https://github.com/apache/pulsar/pull/9091)
-- [PIP 71] Pulsar SQL migrate SchemaHandle to Presto decoder [#8422](https://github.com/apache/pulsar/pull/8422)
-- [PIP 74] Client memory limits [#8965](https://github.com/apache/pulsar/pull/8965) [#9676](https://github.com/apache/pulsar/pull/9676)
-- [PIP 75] Perform serialization/deserialization with LightProto [#9046](https://github.com/apache/pulsar/pull/9046)
-- [PIP 76] Streaming offloader [#9096](https://github.com/apache/pulsar/pull/9096)
-- [PIP 82] Tenant and namespace level rate limiting [#10008](https://github.com/apache/pulsar/pull/10008) [#10201](https://github.com/apache/pulsar/pull/10201) [#10204](https://github.com/apache/pulsar/pull/10204) [#10218](https://github.com/apache/pulsar/pull/10218)
-- [PIP 83] Message consumption with pooled buffer [#10184](https://github.com/apache/pulsar/pull/10184)
-- [PIP 85] Support get reader schema for a message in Java Client [#10476](https://github.com/apache/pulsar/pull/10476)
-
-#### Transactions
-- Support pending ack state persistence [#8881](https://github.com/apache/pulsar/pull/8881)
-- Stable position and low watermark for the transaction buffer [#9195](https://github.com/apache/pulsar/pull/9195)
-- Transaction timeout support [#9229](https://github.com/apache/pulsar/pull/9229)
-- Transaction coordinator retry to complete the transaction [#9236](https://github.com/apache/pulsar/pull/9236)
-- Fix race condition when appending transaction log [#9238](https://github.com/apache/pulsar/pull/9238)
-- Transaction buffer snapshot [#9490](https://github.com/apache/pulsar/pull/9490)
-- Add metrics for transaction coordinator [#9706](https://github.com/apache/pulsar/pull/9706)
-- Clean the useless transaction individual acknowledgements based on low watermark [#9722](https://github.com/apache/pulsar/pull/9722)
-- Fix memory leak when deleting transaction marker [#9751](https://github.com/apache/pulsar/pull/9751)
-- Check the transaction state at the client side [#9776](https://github.com/apache/pulsar/pull/9776)
-- Clean aborted transactions for the transaction buffer [#9974](https://github.com/apache/pulsar/pull/9974)
-- Fix transaction coordinator retry to end transaction [#10131](https://github.com/apache/pulsar/pull/10131)
-- Fix NPE when opening a new transaction [#10139](https://github.com/apache/pulsar/pull/10139)
-- Fix transaction log failed to recover [#10146](https://github.com/apache/pulsar/pull/10146)
-- Fix transaction coordinator recover timeout [#10162](https://github.com/apache/pulsar/pull/10162)
-- Handling committing and aborting state when recovering transaction coordinator [#10179](https://github.com/apache/pulsar/pull/10179)
-- Fix NPE in case of enableTransactionCoordinator=false [#10182](https://github.com/apache/pulsar/pull/10182)
-- Fix transaction buffer client timeout [#10206](https://github.com/apache/pulsar/pull/10206)
-- Fix recover max local id issue for the transaction coordinator [#10224](https://github.com/apache/pulsar/pull/10224)
-- Support using transactions on standalone [#10238](https://github.com/apache/pulsar/pull/10238)
-- Fix transaction buffer lookup issue [#10257](https://github.com/apache/pulsar/pull/10257)
-- Fix transaction timeout issue at the client side [#10323](https://github.com/apache/pulsar/pull/10323)
-- Fix transaction client reconnect issue after transaction coordinator unloaded [#10327](https://github.com/apache/pulsar/pull/10327)
-- Fix transaction timeout not canceled after expired [#10366](https://github.com/apache/pulsar/pull/10366)
-- Transaction log low watermark optimization [#10422](https://github.com/apache/pulsar/pull/10422)
-- Fix the issue of transaction buffer client channel is inactive [#10407](https://github.com/apache/pulsar/pull/10407)
-- Add Admin API for getting transaction coordinator stats [#10639](https://github.com/apache/pulsar/pull/10639)
-- Add Admin API for getting transaction in transaction buffer stats [#10642](https://github.com/apache/pulsar/pull/10642)
-- Add Admin API for getting transaction in pending ack stats [#10648](https://github.com/apache/pulsar/pull/10648)
-- Add Admin API for getting transaction buffer stats and pending ack stats [#10650](https://github.com/apache/pulsar/pull/10650)
-- Add Admin API for getting transaction coordinator internal stats [#10653](https://github.com/apache/pulsar/pull/10653)
-- Setup transaction metadata with metadata store [#10677](https://github.com/apache/pulsar/pull/10677)
-- Fix issue with acknowledge messages from multiple subscriptions of a topic [#10689](https://github.com/apache/pulsar/pull/10689)
-- Admin API for getting transaction metadata [#10690](https://github.com/apache/pulsar/pull/10690)
-- Admin API for getting slow transactions [#10701](https://github.com/apache/pulsar/pull/10701)
-- Fix transaction log handle managed ledger WriteFail state [#10711](https://github.com/apache/pulsar/pull/10711)
-- Admin API for getting pending ack internal stats [#10725](https://github.com/apache/pulsar/pull/10725)
-- Fix transaction ack delete marker position when don't have transaction ack [#10741](https://github.com/apache/pulsar/pull/10741)
-- Fix transaction pending ack generate managedLedgerStats fail exception [#10797](https://github.com/apache/pulsar/pull/10797)
-- Use Zookeeper Prometheus metric provider to export Zookeeper metrics [#10803](https://github.com/apache/pulsar/pull/10803)
-- Always allow system topic for transaction buffer snapshot auto create [#10876](https://github.com/apache/pulsar/pull/10876)
-
-#### Security
-- Optional auth method name header in HTTP authentication [#6799](https://github.com/apache/pulsar/pull/6799)
-- Topics level authorization support [#7523](https://github.com/apache/pulsar/pull/7523)
-- Authorization for setting topic/subscription auto-creation and subscription expire time on namespace [#7900](https://github.com/apache/pulsar/pull/7900)
-- Allow serializable stream-provider field into AuthenticationTls [#10020](https://github.com/apache/pulsar/pull/10020)
-- Add configuration for running OWASP Dependency Check for all modules [#10288](https://github.com/apache/pulsar/pull/10288)
-- Update default TLS protocols to TLSv1.3 and TLSv1.2 for the broker and proxy [#10598](https://github.com/apache/pulsar/pull/10598)
-
-#### Broker
-- Share EventLoopGroup between broker and BookKeeper client [#2603](https://github.com/apache/pulsar/pull/2603)
-- Dispatch batch messages according to consumer permits [7266](https://github.com/apache/pulsar/pull/7266)
-- Improve the max pending publish buffer mechanism [7406](https://github.com/apache/pulsar/pull/7406)
-- Allow disabling HTTP TRACE/TRACK verbs [#7907](https://github.com/apache/pulsar/pull/7907)
-- Fix DispatchRateLimiter does not take effect [#8611](https://github.com/apache/pulsar/pull/8611)
-- Validate namespace isolation policy regex before updating [#8804](https://github.com/apache/pulsar/pull/8804)
-- Perform automatically cert refresh for pulsar-admin [#8831](https://github.com/apache/pulsar/pull/8831)
-- Fix updating rack info dynamically [#8844](https://github.com/apache/pulsar/pull/8844)
-- Fix deadlock when checking message expiration [#8877](https://github.com/apache/pulsar/pull/8877)
-- Support limit max topics per namespace [#8942](https://github.com/apache/pulsar/pull/8942)
-- Make ledger rollover check task internally [#8946](https://github.com/apache/pulsar/pull/8946)
-- Clean up topic that failed to unload from the cache [#8968](https://github.com/apache/pulsar/pull/8968)
-- Support get broker response for the message acknowledgement [#8996](https://github.com/apache/pulsar/pull/8996)
-- Support message index for a topic [#9039](https://github.com/apache/pulsar/pull/9039)
-- Supporting limit max topics per namespace by namespace policy [#9042](https://github.com/apache/pulsar/pull/9042)
-- Streaming dipsatcher support [#9056](https://github.com/apache/pulsar/pull/9056)
-- Make Netty acceptor threadPool size configurable [#9061](https://github.com/apache/pulsar/pull/9061)
-- Fix deadlock when unloading namespace bundles [#9116](https://github.com/apache/pulsar/pull/9116)
-- Fixed checking for maxTopicsPerNamespace [#9121](https://github.com/apache/pulsar/pull/9121)
-- Change the service URL to a not required param when creating a cluster [#9127](https://github.com/apache/pulsar/pull/9127)
-- Support setting replicator dispatch rate policy at the topic level [#9175](https://github.com/apache/pulsar/pull/9175)
-- Fix max topic for namespace does not work [#9193](https://github.com/apache/pulsar/pull/9193)
-- Fix memory leak of the managed ledger interceptor [#9194](https://github.com/apache/pulsar/pull/9194)
-- Fix max consumers per topic cannot be disabled at the namespace level [#9214](https://github.com/apache/pulsar/pull/9214)
-- Support schema REST API for V1 topics [#9218](https://github.com/apache/pulsar/pull/9218)
-- Fix peek message metadata while enabling broker entry metadata [#9255](https://github.com/apache/pulsar/pull/9255)
-- Support fetching metadata from entry data in publish callback [#9257](https://github.com/apache/pulsar/pull/9257)
-- Wait for the async broker port listener close operations to complete at shutdown [#9308](https://github.com/apache/pulsar/pull/9308)
-- Support script based mapping network topology [#9363](https://github.com/apache/pulsar/pull/9363)
-- Make managed ledger storage configurable [#9397](https://github.com/apache/pulsar/pull/9397)
-- Support setting enabled subscription types [#9401](https://github.com/apache/pulsar/pull/9401)
-- Fixed NPE and cache invalidation in leader election [#9460](https://github.com/apache/pulsar/pull/9460)
-- Fix exception when get an optional field for Protobuf message [#9468](https://github.com/apache/pulsar/pull/9468)
-- Ignore replicated subscription configurations from the client when disabled by broker [#9523](https://github.com/apache/pulsar/pull/9523)
-- Support expose producer metrics through Prometheus endpoint [#9541](https://github.com/apache/pulsar/pull/9541)
-- Fix NPE that occurs in PersistentStickyKeyDispatcherMultipleConsumers when debug log enabled [#9587](https://github.com/apache/pulsar/pull/9587)
-- Make LocalPolicies immutable to avoid concurrent modify inconsistent [#9598](https://github.com/apache/pulsar/pull/9598)
-- Fix writing/encoding issue of GenericJsonRecord [#9608](https://github.com/apache/pulsar/pull/9608)
-- Expose the native record for struct schema [#9614](https://github.com/apache/pulsar/pull/9614)
-- Add metrics for producer throttling [#9649](https://github.com/apache/pulsar/pull/9649)
-- Fix MaxUnackedMessagesPerConsumer cannot be changed dynamically and cannot be disabled [#9657](https://github.com/apache/pulsar/pull/9657)
-- Added support for force deleting tenant [#9677](https://github.com/apache/pulsar/pull/9677)
-- Fix managed ledger not found exception when force delete namespace [#9691](https://github.com/apache/pulsar/pull/9691)
-- Reduce CPU consumption of metrics creation [#9735](https://github.com/apache/pulsar/pull/9735)
-- Ensure read-lock is not continuously held on a section while iterating over concurrent maps [#9787](https://github.com/apache/pulsar/pull/9787)
-- Add pending read subscription metrics to stats-internal [#9788](https://github.com/apache/pulsar/pull/9788)
-- Allow broker to discover and unblock stuck subscription [#9789](https://github.com/apache/pulsar/pull/9789)
-- Disabled the tenants/namespaces force deletion by default [#9819](https://github.com/apache/pulsar/pull/9819)
-- Add metrics for the connections of the broker [#9876](https://github.com/apache/pulsar/pull/9876)
-- Make readModifyUpdate in MetadataCacheImpl thread-safe [#9900](https://github.com/apache/pulsar/pull/9900)
-- Optimize NamespaceBundle.toString() which is on the hot path [#9976](https://github.com/apache/pulsar/pull/9976)
-- Support set compaction threshold in broker.conf [#9989](https://github.com/apache/pulsar/pull/9989)
-- Support set properties for a namespace [#10015](https://github.com/apache/pulsar/pull/10015)
-- Fix cannot cleanup expired data after managed-ledger restart [#10087](https://github.com/apache/pulsar/pull/10087)
-- [Default configuration] Enable sticky read by default [#10090](https://github.com/apache/pulsar/pull/10090)
-- Add time based backlog quota [#10093](https://github.com/apache/pulsar/pull/10093)
-- Fix IllegalStateException in PersistentReplicator [#10098](https://github.com/apache/pulsar/pull/10098)
-- Support set max consumers per subscription for non-persistent dispatcher [#10121](https://github.com/apache/pulsar/pull/10121)
-- Limit the number of producers/consumers that can connect per topic for each IP address [#10188](https://github.com/apache/pulsar/pull/10188)
-- Close namespace clients when PulsarService is closed [#10196](https://github.com/apache/pulsar/pull/10196)
-- Shutdown Broker gracefully, but forcefully after brokerShutdownTimeoutMs [#10199](https://github.com/apache/pulsar/pull/10199)
-- Update the authentication data when an authentication refresh happens [#10203](https://github.com/apache/pulsar/pull/10203)
-- Add preciseTopicPublishRateLimiterEnable to broker.conf [#10216](https://github.com/apache/pulsar/pull/10216)
-- Fix the typo in the chunkedMessageRate stats and metrics [#10223](https://github.com/apache/pulsar/pull/10223)
-- Fix entry cache size to be a negative value [#10225](https://github.com/apache/pulsar/pull/10225)
-- Fix replicated subscriptions related LightProto issues [#10247](https://github.com/apache/pulsar/pull/10247)
-- Pause the replicated subscriptions snapshots when there is no real traffic [#10292](https://github.com/apache/pulsar/pull/10292)
-- Fix the inconsistency of advertised address [#10312](https://github.com/apache/pulsar/pull/10312)
-- Support listenerName for HttpLookupService [#10319](https://github.com/apache/pulsar/pull/10319)
-- Support truncate topic [#10326](https://github.com/apache/pulsar/pull/10326)
-- Fix authorization error if partition number of partitioned topic is updated [10333](https://github.com/apache/pulsar/pull/10333)
-- Fix managed ledger name that transaction log used [#10334](https://github.com/apache/pulsar/pull/10334)
-- Catch topic policy not hit exception in handleSubscribe [#10341](https://github.com/apache/pulsar/pull/10341)
-- Fix ConcurrentModificationException when attempting to update local broker data [#10347](https://github.com/apache/pulsar/pull/10347)
-- Support seek to separate messageId/time for multiple topic reader [#10348](https://github.com/apache/pulsar/pull/10348)
-- Resource locks should automatically revalidate after a metadata session is re-established [#10351](https://github.com/apache/pulsar/pull/10351)
-- Add authentication data for the remote cluster [#10357](https://github.com/apache/pulsar/pull/10357)
-- Support array type claims in JWT [#10375](https://github.com/apache/pulsar/pull/10375)
-- Optimize locks in AuthenticationAthenz [#10381](https://github.com/apache/pulsar/pull/10381)
-- Prevent carrying state of PositionImplRecyclable when recycled [#10404](https://github.com/apache/pulsar/pull/10404)
-- Dispatch messages to consumer with permits [#10417](https://github.com/apache/pulsar/pull/10417)
-- Fix NPE in unblock stuck subscription task when dispatcher has not created [#10430](https://github.com/apache/pulsar/pull/10430)
-- Fix topic loading fails without any error when replicator init fails [#10432](https://github.com/apache/pulsar/pull/10432)
-- Set timeout to unblock web-threads on update partition API [#10447](https://github.com/apache/pulsar/pull/10447)
-- Fix CPU 100% when deleting namespace [#10454](https://github.com/apache/pulsar/pull/10454)
-- Remove residual info after forcibly deleting the namespace [#10465](https://github.com/apache/pulsar/pull/10465)
-- Fix potential memory leak of TopicPolicies [#10466](https://github.com/apache/pulsar/pull/10466)
-- Fix publish callback's entry data is null during ledger rollover [#10467](https://github.com/apache/pulsar/pull/10467)
-- Fix readModifyUpdate should return the new value in the future for metadata cache [#10474](https://github.com/apache/pulsar/pull/10474)
-- Fix partitioned system topic check issue [#10529](https://github.com/apache/pulsar/pull/10529)
-- Removed AspectJ based metrics for ZooKeeper [#10533](https://github.com/apache/pulsar/pull/10533)
-- Allow creating MetadataCache with custom serde [#10543](https://github.com/apache/pulsar/pull/10543)
-- Fix ack receipt version check issue [#10551](https://github.com/apache/pulsar/pull/10551)
-- Expose average message size metrics for a topic [#10553](https://github.com/apache/pulsar/pull/10553)
-- Fixed missed ZK caching when fetching list of namespaces for a tenant [#10594](https://github.com/apache/pulsar/pull/10594)
-- Setup pulsar cluster with MetadataStore [#10600](https://github.com/apache/pulsar/pull/10600)
-- Setup initial namespaces with MetadataStore [#10612](https://github.com/apache/pulsar/pull/10612)
-- Convert bundle split into an HTTP async operation [#10619](https://github.com/apache/pulsar/pull/10619)
-- Add metrics for non-contiguous deleted messages range [#10638](https://github.com/apache/pulsar/pull/10638)
-- Fix consumer related topic stats only available while consumer or reader are connected [#10644](https://github.com/apache/pulsar/pull/10644)
-- Allow configuring the number of BK client worker threads [#10649](https://github.com/apache/pulsar/pull/10649)
-- Fix ConcurrentOpenLongPairRangeSet remove all ranges [#10656](https://github.com/apache/pulsar/pull/10656)
-- Ensure all the ReadHandle gets properly closed on cache invalidation [#10659](https://github.com/apache/pulsar/pull/10659)
-- Avoid the context switch when managedLedgerNewEntriesCheckDelayInMillis=0 [#10660](https://github.com/apache/pulsar/pull/10660)
-- Allow configuring busy-wait in broker and client [#10661](https://github.com/apache/pulsar/pull/10661)
-- Use a single JWT parser instance [#10664](https://github.com/apache/pulsar/pull/10664)
-- Fix issues in advanceNonDurableCursors [#10667](https://github.com/apache/pulsar/pull/10667)
-- LockManager use a concurrent hash map to handle locks notifications [#10680](https://github.com/apache/pulsar/pull/10680)
-- Avoid making copies of internal maps when iterating [#10691](https://github.com/apache/pulsar/pull/10691)
-- Fix issue where StackOverflowError occurs when trying to redeliver a large number of already acked messages [#10696](https://github.com/apache/pulsar/pull/10696)
-- Fix NPE when filtering read entries [#10704](https://github.com/apache/pulsar/pull/10704)
-- Fix deadlock when enabling managed ledger interceptor [#10706](https://github.com/apache/pulsar/pull/10706)
-- Fix inconsistent behavior in LongPairRangeSet [#10713](https://github.com/apache/pulsar/pull/10713)
-- Fix repeated iterator generation of LongPairRangeSet [#10722](https://github.com/apache/pulsar/pull/10722)
-- Cancel scheduled tasks as the first step in closing for the managed ledger [#10739](https://github.com/apache/pulsar/pull/10739)
-- Prevent race conditions between timeout and completion of managed ledger [#10740](https://github.com/apache/pulsar/pull/10740)
-- Add advertised listener name for geo-replicator [#10751](https://github.com/apache/pulsar/pull/10751)
-- Add a read lock when traversing batchDeletedIndexes [#10763](https://github.com/apache/pulsar/pull/10763)
-- Replace use of Prometheus client CollectorRegistry.getSampleValue [#10764](https://github.com/apache/pulsar/pull/10764)
-- Release OpAddEntry.data when entry is copied and discarded for the managed ledger [#10773](https://github.com/apache/pulsar/pull/10773)
-- Avoid warning logs on topic policies not present [#10785](https://github.com/apache/pulsar/pull/10785)
-- Remove pulsar-zookeeper module and call zookeeper quorumPeerMain to start zookeeper [#10823](https://github.com/apache/pulsar/pull/10823)
-- Fix consumer stuck issue due to reuse entry wrapper [#10824](https://github.com/apache/pulsar/pull/10824)
-- Fix possible data race in getFirstAvailableConsumerPermits [#10831](https://github.com/apache/pulsar/pull/10831)
-
-#### Functions
-- Update default function log location in function_worker.yaml [#8470](https://github.com/apache/pulsar/pull/8470)
-- Optimize batch source discovery and task ack [#8498](https://github.com/apache/pulsar/pull/8498)
-- Provide an interface for functions worker service [#8560](https://github.com/apache/pulsar/pull/8560)
-- Improve naming of threads used in batch source [#8608](https://github.com/apache/pulsar/pull/8608)
-- Fix the reader used to read the metadata topic during worker service initialization not been closed [#8637](https://github.com/apache/pulsar/pull/8637)
-- Add timeout to hasMessageAvailable to leader election process [#8687](https://github.com/apache/pulsar/pull/8687)
-- Support key based batch builder for Go Functions [#8761](https://github.com/apache/pulsar/pull/8761)
-- Fix panic when discarding message for Go Functions [#8776](https://github.com/apache/pulsar/pull/8776)
-- Move initialize dlog namespace metadata to bin/pulsar [#8781](https://github.com/apache/pulsar/pull/8781)
-- Support URL fetching for Go/Python Functions [#8808](https://github.com/apache/pulsar/pull/8808)
-- Add cmd flag for retaining key ordering [#8886](https://github.com/apache/pulsar/pull/8886)
-- Supports to use package command [#8973](https://github.com/apache/pulsar/pull/8973)
-- Support create and update sink with package name [#8987](https://github.com/apache/pulsar/pull/8987)
-- Support create and update source with package name [#8988](https://github.com/apache/pulsar/pull/8988)
-- Allow stats operations not to be blocked in functions [#9005](https://github.com/apache/pulsar/pull/9005)
-- Adding timeout to open table call for function state [#9006](https://github.com/apache/pulsar/pull/9006)
-- Fix get function info error of REST API [#9115](https://github.com/apache/pulsar/pull/9115)
-- Improve the error message when creating sinks [#9131](https://github.com/apache/pulsar/pull/9131)
-- Expose Pulsar Admin through Function context [#9246](https://github.com/apache/pulsar/pull/9246)
-- Enable Function Workers to use exclusive producer to write to internal topics [#9275](https://github.com/apache/pulsar/pull/9275)
-- Add additional logging when setting up state table for function instance [#9304](https://github.com/apache/pulsar/pull/9304)
-- Allow memory limit to be set for the pulsar client used in the ThreadRuntime in Pulsar Function [#9320](https://github.com/apache/pulsar/pull/9320)
-- Make admin operations on Statestore non blocking [#9348](https://github.com/apache/pulsar/pull/9348)
-- Fix maxPendingAsyncRequests not affect Kubernetes Runtime [#9349](https://github.com/apache/pulsar/pull/9349)
-- Add download directory support to function Kubernetes Runtime [#9377](https://github.com/apache/pulsar/pull/9377)
-- Optimize built-in source/sink startup by eliminating redundant NAR unpacking and checksum calculation [#9413](https://github.com/apache/pulsar/pull/9413) [#9500](https://github.com/apache/pulsar/pull/9500)
-- Enhance Kubernetes manifest customizer with default options [#9445](https://github.com/apache/pulsar/pull/9445)
-- Fix possible deadlock on broker-function service startup [#9499](https://github.com/apache/pulsar/pull/9499)
-- Close InputStreams properly [#9568](https://github.com/apache/pulsar/pull/9568)
-- Add maximum allowed amount of resources setting for functions [#9584](https://github.com/apache/pulsar/pull/9584)
-- Support writing general records to Pulsar sink [#9590](https://github.com/apache/pulsar/pull/9590)
-- Move metrics port configuration to InstanceConfig [#9610](https://github.com/apache/pulsar/pull/9610)
-- Add resource granularity settings for functions [#9736](https://github.com/apache/pulsar/pull/9736)
-- Prevent invalid broker or proxy configuration for authorization [#9746](https://github.com/apache/pulsar/pull/9746)
-- Log stacktraces of threads that failed to terminate on shutdown within timeout in ExecutorProvider [#9840](https://github.com/apache/pulsar/pull/9840)
-- Support get partition index for a Record [#9947](https://github.com/apache/pulsar/pull/9947)
-- Deleting a Pulsar Function with a name that includes a colon character crashes the pulsar broker [#9946](https://github.com/apache/pulsar/issues/9946)
-- Exposing Prometheus metrics for Pulsar function local run mode [#10156](https://github.com/apache/pulsar/pull/10156)
-- Expose local run config metrics-port-start to CLI [#10185](https://github.com/apache/pulsar/pull/10185)
-- Fix Pulsar Function localrun with multiple instances and metrics server is enabled [#10208](https://github.com/apache/pulsar/pull/10208)
-- Improve localrun performance by using JVM options [#10273](https://github.com/apache/pulsar/pull/10273)
-- Fix function API can not use authdata to check superuser [#10364](https://github.com/apache/pulsar/pull/10364)
-- Fix potential bug getting stats and remove unnecessary error log [#10500](https://github.com/apache/pulsar/pull/10500)
-- Fix deadlock on Monitoring thread blocked by LeaderService.isLeader() [#10502](https://github.com/apache/pulsar/pull/10502)
-- Allow user to set custom configs to plugin worker service [#10504](https://github.com/apache/pulsar/pull/10504)
-- K8s Function Name Length Check Allows Invalid StatefulSet [#10531](https://github.com/apache/pulsar/pull/10531)
-- Get function cluster from broker config when start function worker with broker [#10552](https://github.com/apache/pulsar/pull/10552)
-- Process async results in the same Java runnable thread [#10618](https://github.com/apache/pulsar/pull/10618)
-- Support using AutoProduceBytesSchema as the function output schema [#10716](https://github.com/apache/pulsar/pull/10716)
-- ReflectionUtils use Class.forName in order to properly discover classes in Functions Runtime while using DefaultImplementation [#10827](https://github.com/apache/pulsar/pull/10827)
-- Fix the out of index issue when dispatch messages based on the avgBatchSizePerMsg [#10828](https://github.com/apache/pulsar/pull/10828)
-
-#### IO Connectors
-- [Kafka Source Connector] Fix invalid topic name generation [#9035](https://github.com/apache/pulsar/pull/9035)
-- [Kafka Source Connector] Allow managing Avro encoded messages [#9448](https://github.com/apache/pulsar/pull/9448)
-- Configure Pulsar IO connector YAML file generator for all connectors [#9629](https://github.com/apache/pulsar/pull/9629)
-- [Kafka Source Connector] KeyValue schema support for KafkaBytesSource [#10002](https://github.com/apache/pulsar/pull/10002)
-- Allow using GenericObject for developing a Sink connector [#10034](https://github.com/apache/pulsar/pull/10034)
-- Sink<GenericObject> unwrap internal AutoConsumeSchema and allow to handle topics with KeyValue schema [#10211](https://github.com/apache/pulsar/pull/10211)
-- Using ObjectMapper instead of Gson to parse Source/SInk configuration [#10441](https://github.com/apache/pulsar/pull/10441)
-- Expose subscription type in the SinkContext [#10446](https://github.com/apache/pulsar/pull/10446)
-- Add the ability to seek/pause/resume for a topic to the SinkContext [#10498](https://github.com/apache/pulsar/pull/10498)
-- Use Message.getReaderSchema() in Pulsar IO Sinks when possible [#10557](https://github.com/apache/pulsar/pull/10557)
-- [Kinesis Sink Connector] Fix backoff class not found [#10744](https://github.com/apache/pulsar/pull/10744)
-- [Kinesis Sink Connector] Fix does not acknowledge messages [#10769](https://github.com/apache/pulsar/pull/10769)
-- [Kafka Sink Adaptor] Support non-primitive schemas [#10410](https://github.com/apache/pulsar/pull/10410)
-
-#### Pulsar SQL
-- Fix the misleading setting in presto configuration [#8549](https://github.com/apache/pulsar/pull/8549)
-- Fix injection factory cast error [#9472](https://github.com/apache/pulsar/pull/9472)
-- Add max split entry queue size bytes limitation [#9628](https://github.com/apache/pulsar/pull/9628)
-- Fix Pulsar SQL query bytes schema data error [#9631](https://github.com/apache/pulsar/pull/9631)
-- Fix Pulsar SQL query compression data [#9663](https://github.com/apache/pulsar/pull/9663)
-- Support native Protobuf decoder [#9841](https://github.com/apache/pulsar/pull/9841)
-- Support query uppercase topic name [#9980](https://github.com/apache/pulsar/pull/9980)
-- Only return persistent topic when list tables [#10368](https://github.com/apache/pulsar/pull/10368)
-- Fix Presto startup on JDK11 [#10559](https://github.com/apache/pulsar/pull/10559)
-- Fix pulsar sql issues when run select count(*) for the table with primary schema [#10840](https://github.com/apache/pulsar/pull/10840)
-
-#### Tiered Storage
-- Fix AWS credentials usages [#8950](https://github.com/apache/pulsar/pull/8950)
-- Support ALI OSS tiered storage [#8985](https://github.com/apache/pulsar/pull/8985)
-
-#### Proxy
-- Fix the proxy does not support partitioned topic auto-creation type [#7903](https://github.com/apache/pulsar/issues/7903)
-- Enable Conscrypt for Jetty in the Broker and in the Proxy [#10541](https://github.com/apache/pulsar/pull/10541)
-
-#### Java Client
-- Fix warn log on the producer side when duplicated messages have been dropped [#8729](https://github.com/apache/pulsar/pull/8729)
-- Allow setting subscription name for Reader [#8801](https://github.com/apache/pulsar/pull/8801)
-- Fix authParams showing in log with secret string(*****) [#8910](https://github.com/apache/pulsar/pull/8910)
-- Avoid enabling DLQ on Key_Shared subscription [#9163](https://github.com/apache/pulsar/pull/9163)
-- Add support for the JSON format token [#9313](https://github.com/apache/pulsar/pull/9313)
-- Expose reached end of topic API for Reader/Consumer [#9381](https://github.com/apache/pulsar/pull/9381)
-- Fix returned a completed future when acknowledging a batch message before complete the individual acknowledgments [#9383](https://github.com/apache/pulsar/pull/9383)
-- Fix NPE when strip checksum for the producer [#9400](https://github.com/apache/pulsar/pull/9400)
-- Fix inconsistent equals and hashCode for MessageIds [#9440](https://github.com/apache/pulsar/pull/9440)
-- Allow disabling producer max queue size [#9650](https://github.com/apache/pulsar/pull/9650)
-- Include pulsar-client-admin-api in the shaded version of pulsar-client-admin [#9689](https://github.com/apache/pulsar/pull/9689)
-- Fix NPE in the ClientCnx [#9761](https://github.com/apache/pulsar/pull/9761)
-- Fix DLQ can't work with AUTO_CONSUME schema [#9935](https://github.com/apache/pulsar/issues/9935)
-- Fix NPE caused by null value of SchemaInfo's properties [#9985](https://github.com/apache/pulsar/pull/9985)
-- Support multi-topic reader [#9995](https://github.com/apache/pulsar/pull/9995)
-- Process messages from different partitions on different listener threads [#10017](https://github.com/apache/pulsar/pull/10017)
-- Ensure close resource to avoid memory leak [#10028](https://github.com/apache/pulsar/pull/10028)
-- Support set start message ID for each topic/partition on Reader [#10033](https://github.com/apache/pulsar/pull/10033)
-- Add a JSON RecordBuilder to the GenericJsonSchema [#10052](https://github.com/apache/pulsar/pull/10052)
-- Allow GenericRecord to wrap any Java Object [#10057](https://github.com/apache/pulsar/pull/10057)
-- Fix NPE while configuring consumer builder [#10063](https://github.com/apache/pulsar/pull/10063)
-- Support get native schema [#10076](https://github.com/apache/pulsar/pull/10076)
-- Support KeyValue on Message.getValue() when using AutoConsumeSchema [#10107](https://github.com/apache/pulsar/pull/10107)
-- Change the default retry topic name and dead letter topic name [#10129](https://github.com/apache/pulsar/pull/10129)
-- Fix KeyValue with SEPARATED encoding for the GenericObject [#10186](https://github.com/apache/pulsar/pull/10186)
-- Ensure download schema before decoding the payload for the AUTO_CONSUME schema [#10248](https://github.com/apache/pulsar/pull/10248)
-- Fix typo of the maxPendingChunkedMessage method [#10223](https://github.com/apache/pulsar/pull/10223)
-- Trait NONE schema as BYTE schema for AUTO_CONSUME schema [#10277](https://github.com/apache/pulsar/pull/10277)
-- Fix pause consume issue with MultiTopicsConsumerImpl [#10305](https://github.com/apache/pulsar/pull/10305)
-- Make message consumption thread safe and lock-free [#10352](https://github.com/apache/pulsar/pull/10352)
-- Reset state before recycling OpSendMsg instance [#10405](https://github.com/apache/pulsar/pull/10405)
-- Fix hasMessageAvailable return true but can't read message [#10414](https://github.com/apache/pulsar/pull/10414)
-- Fix NPE in GenericJsonRecord [#10482](https://github.com/apache/pulsar/pull/10482)
-- Fix behaviour of Schema.AUTO_CONSUME() with KeyValueSchema and multi versions [#10492](https://github.com/apache/pulsar/pull/10492)
-- Avoid sending flow requests with zero permits [#10507](https://github.com/apache/pulsar/pull/10507)
-- Make failPendingMessages called from within the ProducerImpl object mutex [#10528](https://github.com/apache/pulsar/pull/10528)
-- Add schemaType field in SchemaHash [#10573](https://github.com/apache/pulsar/pull/10573)
-- Fix NPE when ACK grouping tracker checks duplicated message id [#10586](https://github.com/apache/pulsar/pull/10586)
-- Support consume multiple schema types messages by AutoConsumeSchema [#10604](https://github.com/apache/pulsar/pull/10604)
-- Fixed issues in pulsar-client shading configuration [#10614](https://github.com/apache/pulsar/pull/10614)
-- MessageCrypto interface should not expose Netty ByteBuf class in the API [#10616](https://github.com/apache/pulsar/pull/10616)
-- Added org.apache.bookkeeper:cpu-affinity to shaded profile [#10681](https://github.com/apache/pulsar/pull/10681)
-- Skip the periodic re-check of the partitions count on non-partitioned topic [#10708](https://github.com/apache/pulsar/pull/10708)
-- Unlock the write lock of the UnAckedMessageTracker before call redeliverUnacknowledgedMessages [#10768](https://github.com/apache/pulsar/pull/10768)
-- Fix AutoConsumeSchema decode data without schema version [#10811](https://github.com/apache/pulsar/pull/10811)
-
-#### C++ Client
-- Fix dangling reference bug in getRandomName [#8596](https://github.com/apache/pulsar/pull/8596)
-- Optimize batch message buffer allocation [#8749](https://github.com/apache/pulsar/pull/8749)
-- Make pool connections configurable in perf tools [#8913](https://github.com/apache/pulsar/pull/8913)
-- Support setting listener name [#9119](https://github.com/apache/pulsar/pull/9119)
-- Fix batch message handling of the UnAckedMessageTracker [#9170](https://github.com/apache/pulsar/pull/9170)
-- Fix ServerError is not converted to string in log [#9277](https://github.com/apache/pulsar/pull/9277)
-- Remove Boost::System runtime dependency [#9498](https://github.com/apache/pulsar/pull/9498)
-- Removed usages of boost::regex [#9533](https://github.com/apache/pulsar/pull/9533)
-- Account for different variables names on different CMake versions [#9559](https://github.com/apache/pulsar/pull/9559)
-- Allow to disable static or dynamic lib at build time [#9570](https://github.com/apache/pulsar/pull/9570)
-- Avoid multiple compilations of same source files [#9675](https://github.com/apache/pulsar/pull/9675)
-- Support configure debug level logs simply [#10031](https://github.com/apache/pulsar/pull/10031)
-- Add /opt/homebrew/ as a possible path for OpenSSL on Mac [#10141](https://github.com/apache/pulsar/pull/10141)
-- Fix race condition in MemoryLimitController [#10142](https://github.com/apache/pulsar/pull/10142)
-- Fix releasing semaphore and memory quota after send timeout [#10144](https://github.com/apache/pulsar/pull/10144)
-- Allow configuring memory limit from C API [#10145](https://github.com/apache/pulsar/pull/10145)
-- Fix use-after-free undefined behavior due to object lifetime problem [#10220](https://github.com/apache/pulsar/pull/10220)
-- Support enable replicate subscription [#10243](https://github.com/apache/pulsar/pull/10243)
-- Fix C++ client cannot be built with Boost <=1.53 [#10307](https://github.com/apache/pulsar/pull/10307)
-- Support check connect state [#10349](https://github.com/apache/pulsar/pull/10349)
-- Avoid sending flow requests with zero permits [#10506](https://github.com/apache/pulsar/pull/10506)
-- Add single file logger factory [#10712](https://github.com/apache/pulsar/pull/10712)
-- Reduce redeliverMessages when message listener is enabled [#10726](https://github.com/apache/pulsar/pull/10726)
-
-#### Python Client
-- Replace Exceptions with PulsarExceptions [#7600](https://github.com/apache/pulsar/pull/7600)
-- Added logger wrapper support to make logging configurable [#7713](https://github.com/apache/pulsar/pull/7713)
-- Initial python 3.9 client wheel build support [#9389](https://github.com/apache/pulsar/pull/9389)
-- Support enable replicate subscription [#10243](https://github.com/apache/pulsar/pull/10243)
-
-#### WebSocket
-- Negative acknowledge support [#8249](https://github.com/apache/pulsar/pull/8249)
-- Support deliverAt and deliverAfter attribute [#8945](https://github.com/apache/pulsar/pull/8945)
-- Fix returned status code does not depend on the exception type [#9031](https://github.com/apache/pulsar/pull/9031)
-- Allow to consume and pass message to client without decryption [#10026](https://github.com/apache/pulsar/pull/10026)
-- Support pong command [#10035](https://github.com/apache/pulsar/pull/10035)
-
-#### Pulsar Admin
-- Support get applied message TTL policy for a topic [#9225](https://github.com/apache/pulsar/pull/9225)
-- Support get applied inactive topic policy for a topic [#9230](https://github.com/apache/pulsar/pull/9230)
-- Support get applied delayed delivery policy for a topic [#9245](https://github.com/apache/pulsar/pull/9245)
-- Support get applied max unacked message per subscription policy for a topic [#9290](https://github.com/apache/pulsar/pull/9290)
-- Support get applied max producer for a topic [#9293](https://github.com/apache/pulsar/pull/9293)
-- Support get applied max consumer for a topic [#9296](https://github.com/apache/pulsar/pull/9296)
-- Support get applied deduplication status policy for a topic [#9339](https://github.com/apache/pulsar/pull/9339)
-- Support get applied retention policy for a topic [#9362](https://github.com/apache/pulsar/pull/9362)
-- Support get applied offloader policy for a topic [#9505](https://github.com/apache/pulsar/pull/9505)
-- Support get applied max unacked messages per consumer for a topic [#9694](https://github.com/apache/pulsar/pull/9694)
-- Support get applied dispatch rate policy for a topic [#9824](https://github.com/apache/pulsar/pull/9824)
-- Support get applied subscription dispatch rate policy for a topic [#9827](https://github.com/apache/pulsar/pull/9827)
-- Support get applied backlog quota policy for a topic [#9828](https://github.com/apache/pulsar/pull/9828)
-- Support get applied persistence policy for a topic [#9831](https://github.com/apache/pulsar/pull/9831)
-- Support get applied cluster subscribe rate for a topic [#9832](https://github.com/apache/pulsar/pull/9832)
-- Support get applied replicator dispatch rate for a topic [#9833](https://github.com/apache/pulsar/pull/9833)
-- Support get applied compaction threshold [#10038](https://github.com/apache/pulsar/pull/10038)
-- Lazily init PulsarAdmin in PulsarAdminTool [#9312](https://github.com/apache/pulsar/pull/9312)
-- Fix create partition of existing topic does not throw RestException [#9342](https://github.com/apache/pulsar/pull/9342)
-- Support get service URL of the leader broker [#9799](https://github.com/apache/pulsar/pull/9799)
-- Support get persistent topics or non-persistent topics for pulsar admin client [#9877](https://github.com/apache/pulsar/pull/9877)
-- Fix can not disable and remove max consumer per subscription [#10070](https://github.com/apache/pulsar/pull/10070)
-- Add support for setting time based limit on backlog quota [#10401](https://github.com/apache/pulsar/pull/10401)
-- Make client-admin-api to use interfaces with builders instead of POJOs [#10818](https://github.com/apache/pulsar/pull/10818)
-
-#### Tools
-- [Pulsar Perf] Support load WebSocket service URL from config file [#9000)](https://github.com/apache/pulsar/pull/9000)
-- [BookKeeper Shell] Make bookkeeper shell more user friendly [#9281](https://github.com/apache/pulsar/pull/9281)
-- [Client Tools] Supports end-to-end encryption [#9615](https://github.com/apache/pulsar/pull/9615)
-- [Pulsar Perf] Support specify topics and subscriptions [#9716](https://github.com/apache/pulsar/pull/9716)
-- [Client Tools] Allow printing GenericRecord contents [#9785](https://github.com/apache/pulsar/pull/9785)
-- [Pulsar Perf] Fix compatibility issues with previous version [#9838](https://github.com/apache/pulsar/pull/9838)
-- [Pulsar Perf] Add ability to create partitioned topics [#9859](https://github.com/apache/pulsar/pull/9859)
-- [Client Tools] handle data with different schemas when consuming messages [#10301](https://github.com/apache/pulsar/pull/10301)
-- [Client Tools] Fix NoClassDefFoundError when running pulsar cli tools in dev directory [#10807](https://github.com/apache/pulsar/pull/10807)
-
-#### Dependencies
-- Upgrade Kubernetes client and remove sundr-codegen [#8576](https://github.com/apache/pulsar/pull/8576)
-- Upgrade ZooKeeper to 3.6.2 and Curator to 5.1.0 [#8549](https://github.com/apache/pulsar/pull/8549)
-- [CVE-2020-26238] Upgrade cron-utils to 9.1.3 and sprint-context to 5.3.1 [#8822](https://github.com/apache/pulsar/pull/8822)
-- Upgrade Swagger to 1.6.2 and Maven Swagger Plugin to 3.1.7 [#8845](https://github.com/apache/pulsar/pull/8845)
-- Upgrade to Apache Avro 1.10.2 [#9898](https://github.com/apache/pulsar/pull/9898)
-- Add jersey-client as dependency of pulsar-client-auth-sasl [#10055](https://github.com/apache/pulsar/pull/10055)
-- Upgrade Athenz version to 1.10.9 and remove yahoo.bintray.com repository [#10079](https://github.com/apache/pulsar/pull/10079)
-- [CVE-2020-15250] Upgrade junit version to 4.13.1 [#10147](https://github.com/apache/pulsar/pull/10147)
-- [CVE-2020-8908,CVE-2018-10237] Upgrade jclouds to 2.3.0 [#10149](https://github.com/apache/pulsar/pull/10149)
-- Remove jackson-mapper-asl dependency to resolve multiple CVEs [#10262](https://github.com/apache/pulsar/pull/10262)
-- [CVE-2021-21409] Upgrade Netty to 4.1.63.Final [#10266](https://github.com/apache/pulsar/pull/10266)
-- [CVE-2018-12541] Upgrade vertx to 3.9.7 [#10261](https://github.com/apache/pulsar/pull/10261)
-- Upgrade BookKeeper to 4.14.1 [#10686](https://github.com/apache/pulsar/pull/10686)
-- [CVE-2021-28169] Upgrade Jetty to 9.4.42.v20210604 [#10907](https://github.com/apache/pulsar/pull/10907)
-
-### 2.6.4
-
-#### 2021-06-02
-
-#### Broker
-- Disallow parsing of token with none signature in authenticateToken [#9172](https://github.com/apache/pulsar/pull/9172)
-- Fix marking individual deletes as dirty [#9732](https://github.com/apache/pulsar/pull/9732)
-- Issue 9082: Broker expires messages one at a time after topic unload [#9083](https://github.com/apache/pulsar/pull/9083)
-- [logging] Upgrade Log4j2 version to 2.14.0, replace legacy log4j dependency with log4j-1.2-api [#8880](https://github.com/apache/pulsar/pull/8880)
-- Upgrade Bouncy castle to newest version [#8047](https://github.com/apache/pulsar/pull/8047)
-- Fixed logic for forceful topic deletion [#7356](https://github.com/apache/pulsar/pull/7356)
-- Perform periodic flush of ManagedCursor mark-delete posistions [#8634](https://github.com/apache/pulsar/pull/8634)
-- Fix the batch index ack persistent issue. [#9504](https://github.com/apache/pulsar/pull/9504)
-- Fix the partition number not equals expected error [#9446](https://github.com/apache/pulsar/pull/9446)
-- Fix the closed ledger did not delete after expired [#9136](https://github.com/apache/pulsar/pull/9136)
-- Fix testBrokerSelectionForAntiAffinityGroup by increasing OverloadedThreshold [#9393](https://github.com/apache/pulsar/pull/9393)
-
-### Tiered storage
-- [tiered-storage] Allow AWS credentials to be refreshed [#9387](https://github.com/apache/pulsar/pull/9387)
-
-### Java client
-- Compression must be applied during deferred schema preparation and enableBatching is enabled [#9396](https://github.com/apache/pulsar/pull/9396)
-
-### C++ client
-- [C++] Remove namespace check for MultiTopicsConsumerImpl [#9520](https://github.com/apache/pulsar/pull/9520)
-
-
-### 2.7.4
-
-#### 2021-12-14
-
-#### Security
-
-- Upgrade log4j to 2.17.0 - [CVE-2021-45105](https://pulsar.apache.org/blog/2021/12/11/Log4j-CVE/). [#13392](https://github.com/apache/pulsar/pull/13392)
-- Upgrade commons-compress to 1.21 - CVE-2021-35515, CVE-2021-35516, CVE-2021-35517 and CVE-2021-36090. [#11345](https://github.com/apache/pulsar/pull/11345)
-
-#### Broker
-
-- Fix DispatchRateLimiter does not take effect. [#8611](https://github.com/apache/pulsar/pull/8611)
-- Fix set-publish-rate when using preciseTopicPublishRateLimiterEnable=true. [#10384](https://github.com/apache/pulsar/pull/10384)
-- Fix retention policy in topic policy not work. [#11021](https://github.com/apache/pulsar/pull/11021)
-- Fix GetTopicsOfNamespace with binary lookup service not check auth. [#11172](https://github.com/apache/pulsar/pull/11172)
-- Fix retention of keys in compaction. [#11287](https://github.com/apache/pulsar/pull/11287)
-- Fix using partitioned topic name to get Policy. [#11294](https://github.com/apache/pulsar/pull/11294)
-- Fix NPE when unloading persistent partitioned topic. [#11310](https://github.com/apache/pulsar/pull/11310)
-- Remove RateLimiter constructors and replace with builder usage. [#11599](https://github.com/apache/pulsar/pull/11599)
-- Add backoff for setting for getting topic policies. [#11574](https://github.com/apache/pulsar/pull/11574)
-- Fix decode compression managedLedgerInfo data. [#11569](https://github.com/apache/pulsar/pull/11569)
-- Fix some topic policy operation without backoff. [#11560](https://github.com/apache/pulsar/pull/11560)
-- Fix data lost when using earliest position to subscribe to a topic. [#11547](https://github.com/apache/pulsar/pull/11547)
-- Fix the schema deletion when delete topic with delete schema. [#11501](https://github.com/apache/pulsar/pull/11501)
-- Do not create system topic for heartbeat namespace. [#11499](https://github.com/apache/pulsar/pull/11499)
-- Compress managed ledger info. [#11490](https://github.com/apache/pulsar/pull/11490)
-- Add backoff for setting for getting topic policies. [#11487](https://github.com/apache/pulsar/pull/11487)
-- Solving precise rate limiting does not take effect. [#11446](https://github.com/apache/pulsar/pull/11446)
-- Fix replicated subscriptions direct memory leak. [#11396](https://github.com/apache/pulsar/pull/11396)
-- Close the replicator and replication client when deleting cluster. [#11390](https://github.com/apache/pulsar/pull/11390)
-- Invalidate the read handle after all cursors are consumed. [#11389](https://github.com/apache/pulsar/pull/11389)
-- Fix NPE when unloading persistent partitioned topic. [#11386](https://github.com/apache/pulsar/pull/11386)
-- Fix retention of keys in compaction. [#11384](https://github.com/apache/pulsar/pull/11384)
-- Disable replicate system topic across clusters. [#11376](https://github.com/apache/pulsar/pull/11376)
-- Parallel Precise Publish Rate Limiting Fix. [#11372](https://github.com/apache/pulsar/pull/11372)
-- Pulsar Admin List Subscription lists only subscriptions created for Partition-0 when partition specific subscriptions are created. [#11355](https://github.com/apache/pulsar/pull/11355)
-- Fix inconsistent behavior for Namespace bundles cache. [#11346](https://github.com/apache/pulsar/pull/11346)
-- Fix update ledger list to znode version mismatch failed, ledger not delete. [#12015](https://github.com/apache/pulsar/pull/12015)
-- Print position info when can't find next valid position. [#11969](https://github.com/apache/pulsar/pull/11969)
-- Forbid to read other topic's data in managedLedger layer. [#11913](https://github.com/apache/pulsar/pull/11913)
-- Fix using partitioned topic name to get topic policies. [#11897](https://github.com/apache/pulsar/pull/11897)
-- Refine topic level backlog quota policies warning log. [#11863](https://github.com/apache/pulsar/pull/11863)
-- Producer getting producer busy is removing existing producer from list. [#11804](https://github.com/apache/pulsar/pull/11804)
-- Handle NPE and memory leak when full key range isn't covered with active consumers. [#11749](https://github.com/apache/pulsar/pull/11749)
-- Call .release() when discarding entry to prevent direct memory leak. [#11748](https://github.com/apache/pulsar/pull/11748)
-- Fix the topic in fenced state and can not recover. [#11737](https://github.com/apache/pulsar/pull/11737)
-- Support disabling non-TLS service ports. [#11724](https://github.com/apache/pulsar/pull/11724)
-- Fix the bug, can not update topic when the update topicName is contained by an existed topic as a part. [#11686](https://github.com/apache/pulsar/pull/11686)
-- Fix Pulsar didn't respond error messages when throw InterceptException. [#11650](https://github.com/apache/pulsar/pull/11650)
-- Avoid redundant calls for getting the offload policies from the offloader. [#11629](https://github.com/apache/pulsar/pull/11629)
-- Optimize ManagedLedger Ledger Ownership Check. [#13222](https://github.com/apache/pulsar/pull/13222)
-- Do not reuse the Failed OpAddEntry object which lead bundle unloading timeout. [#12993](https://github.com/apache/pulsar/pull/12993)
-- Fix producer getting incorrectly removed from topic's producers map. [#12846](https://github.com/apache/pulsar/pull/12846)
-- Allow to configure schema compatibility policy for system topics. [#12598](https://github.com/apache/pulsar/pull/12598)
-- Cleanup already deleted namespace topics. [#12583](https://github.com/apache/pulsar/pull/12583)
-- Add OpAddEntry to pendingAddEntries after the state check. [#12570](https://github.com/apache/pulsar/pull/12570)
-- Cancel scheduled tasks when deleting ManagedLedgerImpl. [#12565](https://github.com/apache/pulsar/pull/12565)
-- NPE on OpAddEntry while ManagedLedger is closing. [#12364](https://github.com/apache/pulsar/pull/12364)
-- Avoid potentially blocking calls to metadata on critical threads. [#12340](https://github.com/apache/pulsar/pull/12340)
-- Fix used after recycle issue in OpAddEntry. [#12103](https://github.com/apache/pulsar/pull/12103)
-- Optimize the memory usage of Cache Eviction. [#12045](https://github.com/apache/pulsar/pull/12045)
-- Fix wrong key-hash selector used for new consumers after all the previous consumers disconnected. [#12035](https://github.com/apache/pulsar/pull/12035)
-- Only auth_errors should log at error level. [#9325](https://github.com/apache/pulsar/pull/9325)
-
-#### Dependency upgrade
-- Remove Boost::System runtime dependency. [#9498](https://github.com/apache/pulsar/pull/9498)
-- Upgrade Jetty to 9.4.43.v20210629. [#11660](https://github.com/apache/pulsar/pull/11660)
-- Add maven.restlet.org repository. [#13248](https://github.com/apache/pulsar/pull/13248)
-- Upgrade ZooKeeper version to 3.5.9. [#12981](https://github.com/apache/pulsar/pull/12981)
-- Remove pulsar-dashboard from the publish process of images. [#12534](https://github.com/apache/pulsar/pull/12534)
-- Roll back to using Java 8 for docker images. [#12357](https://github.com/apache/pulsar/pull/12357)
-- Upgrade TestContainers to 1.15.1. [#9120](https://github.com/apache/pulsar/pull/9120)
-
-#### Client
-
-- [Java] Refactor seek to reuse common logic. [#9670](https://github.com/apache/pulsar/pull/9120)
-- [Java] Process partitioned-topic messages on different listener-threads. [#10017](https://github.com/apache/pulsar/pull/10017)
-- [Java] Fix Consumer listener does not respect receiver queue size. [#11455](https://github.com/apache/pulsar/pull/11455)
-- [Java] Add a optional params scope for pulsar oauth2 client. [#11931](https://github.com/apache/pulsar/pull/11931)
-- [Java] Fix seek at batchIndex level receive duplicated messages. [#11826](https://github.com/apache/pulsar/pull/11826)
-- [Java] Fix race condition on multi-topic consumer. [#11764](https://github.com/apache/pulsar/pull/11764)
-- [Java] Remove consumer reference from PulsarClient on subscription failure. [#11758](https://github.com/apache/pulsar/pull/11758)
-- [Java] Fix block forever bug in Consumer.batchReceive. [#11691](https://github.com/apache/pulsar/pull/11691)
-- [Java] Send CloseProducer on timeout. [#13161](https://github.com/apache/pulsar/pull/13161)
-- [Java] Remove invalid call to Thread.currentThread().interrupt(). [#12652](https://github.com/apache/pulsar/pull/12652)
-- [Python] Fix fields that are ignoring the required key argument. [#11508](https://github.com/apache/pulsar/pull/11508)
-- [C++] Remove usages of boost::regex. [#9533](https://github.com/apache/pulsar/pull/9533)
-- [C++] Use sendRequestWithId to add timeout to hasMessageAvailable. [#11600](https://github.com/apache/pulsar/pull/11600)
-- [Pulsar perf] Fix log level config for pulsar-admin, pulsar-client and pulsar-perf. [#12915](https://github.com/apache/pulsar/pull/12915)
-
-#### Functions and Pulsar IO
-
-- Fix source stats exposing empty exceptions list. [#11478](https://github.com/apache/pulsar/pull/11478)
-- Fix function API can not use authdata to check superuser. [#11418](https://github.com/apache/pulsar/pull/11418)
-- Support setting KEY_BASED batch builder for Pulsar Sinks. [#11710](https://github.com/apache/pulsar/pull/11710)
-- Detect .nar files and prevent spammy logs on functions boot. [#12665](https://github.com/apache/pulsar/pull/12665)
-- Remove the deprecated api usage in hdfs. [#12080](https://github.com/apache/pulsar/pull/12080)
-
-#### Tiered Storage
-
-- Fix the potential race condition in the BlobStore readhandler. [#12123](https://github.com/apache/pulsar/pull/12123)
-
-#### Build
-
-- Force CMake to find Python2. [#9690](https://github.com/apache/pulsar/pull/9690)
-- Use ubuntu 20.04 as docker image base. [#12017](https://github.com/apache/pulsar/pull/12017)
-- Fix docker image install python3.7-dev problem. [#11942](https://github.com/apache/pulsar/pull/11942)
-
-
-### 2.7.3
-
-#### 2021-07-27
-
-#### Broker
-- Fix Delayed Messages. [#11374](https://github.com/apache/pulsar/pull/11374)
-- Fix missing replicator metrics. [#11264](https://github.com/apache/pulsar/pull/11264)
-- Fix branch-2.7 test. [#11254](https://github.com/apache/pulsar/pull/11254)
-- Fix broker dispatch byte rate limiter [#11249](https://github.com/apache/pulsar/pull/11249)
-- Fix websocket TLS bug [#11243](https://github.com/apache/pulsar/pull/11243)
-- Fix init WebSocketService with ClusterData [#11234](https://github.com/apache/pulsar/pull/11234)
-- Fix ledger roll over scheduler task [#11226](https://github.com/apache/pulsar/pull/11226)
-- Remove unused listener to reduce creating executor pool [#11215](https://github.com/apache/pulsar/pull/11215)
-- Make the compaction phase one loop timeout configurable [#11206](https://github.com/apache/pulsar/pull/11206)
-- Fix failing auth test. [#11186](https://github.com/apache/pulsar/pull/11186)
-- Fix the dead lock when using hasMessageAvailableAsync and readNextAsync [#11183](https://github.com/apache/pulsar/pull/11183)
-- Fix compaction entry read exception [#11175](https://github.com/apache/pulsar/pull/11175)
-- On multi-topic consumer, we shouldn't keep checking the partitioned metadata [#11168](https://github.com/apache/pulsar/pull/11168)
-- Fix replay topic policy message not work [#11136](https://github.com/apache/pulsar/pull/11136)
-- Fix broker dispatch byte rate limiter. [#11135](https://github.com/apache/pulsar/pull/11135)
-- Change test group to broker for ReplicatorTest and fix the test [#11134](https://github.com/apache/pulsar/pull/11134)
-- Fix ledger rollover scheduled task [#11116](https://github.com/apache/pulsar/pull/11116)
-- Fix race condition of the SystemTopicBasedTopicPoliciesService [#11097](https://github.com/apache/pulsar/pull/11097)
-- Print message metadata when getting message by id [#11092](https://github.com/apache/pulsar/pull/11092)
-- Fix flaky test testEnableAndDisableTopicDelayedDelivery [#11009](https://github.com/apache/pulsar/pull/11009)
-- Fix potential data lost on the system topic when topic compaction has not triggered yet [#11003](https://github.com/apache/pulsar/pull/11003)
-- Fix direct memory leak in getLastMessageId [#10977](https://github.com/apache/pulsar/pull/10977)
-- Fix the backlog issue with --precise-backlog=true [#10966](https://github.com/apache/pulsar/pull/10966)
-- Fix NonRecoverableLedgerException when get last message ID by Reader [#10957](https://github.com/apache/pulsar/pull/10957)
-- Fix compaction not working for system topic [#10941](https://github.com/apache/pulsar/pull/10941)
-- Fix issue where Key_Shared consumers could get stuck [#10920](https://github.com/apache/pulsar/pull/10920)
-- When the Replicator is enabled, no managedLedger is created when updating the number of partitions [#10910](https://github.com/apache/pulsar/pull/10910)
-- Handle multiple topic creation for the same topic-name in broker [#10847](https://github.com/apache/pulsar/pull/10847)
-- Release OpAddEntry.data when entry is copied and discarded [#10773](https://github.com/apache/pulsar/pull/10773)
-- Fix issue that message ordering could be broken when redelivering messages on Key_Shared subscription [#10762](https://github.com/apache/pulsar/pull/10762)
-- Fix solution for preventing race conditions between timeout and completion [#10740](https://github.com/apache/pulsar/pull/10740)
-- Cancel scheduled tasks as the first step in closing [#10739](https://github.com/apache/pulsar/pull/10739)
-- MINOR: Add error message to setMaxPendingMessagesAcrossPartitions [#10709](https://github.com/apache/pulsar/pull/10709)
-- Make PrometheusMetricsTest. testAuthMetrics pass on CI [#10699](https://github.com/apache/pulsar/pull/10699)
-- Fix issue where StackOverflowError occurs when trying to redeliver a large number of already acked messages [#10696](https://github.com/apache/pulsar/pull/10696)
-- Revert "Creating a topic does not wait for creating cursor of replicators" [#10674](https://github.com/apache/pulsar/pull/10674)
-- Use single instance of parser [#10664](https://github.com/apache/pulsar/pull/10664)
-- Ensure all the ReadHandle gets properly closed on cache invalidation [#10659](https://github.com/apache/pulsar/pull/10659)
-- Fix ConcurrentOpenLongPairRangeSet remove all ranges [#10656](https://github.com/apache/pulsar/pull/10656)
-- TopicPoliciesTest.testMaxSubscriptionsFailFast fails [#10640](https://github.com/apache/pulsar/pull/10640)
-- Add metrics for non-contiguous deleted messages range [#10638](https://github.com/apache/pulsar/pull/10638)
-- Fixed missed ZK caching when fetching a list of namespaces for a tenant [#10594](https://github.com/apache/pulsar/pull/10594)
-- Made OpAddEntry.toString() more robust to nulls to prevent NPEs [#10548](https://github.com/apache/pulsar/pull/10548)
-- Fix partitioned system topic check bug [#10529](https://github.com/apache/pulsar/pull/10529)
-- Make failPendingMessages called from within the ProducerImpl object mutex [#10528](https://github.com/apache/pulsar/pull/10528)
-- Fix deadlock on Monitoring thread blocked by LeaderService.isLeader() [#10512](https://github.com/apache/pulsar/pull/10512)
-- Fix: Topic loading fails without any error when replicator init fails [#10432](https://github.com/apache/pulsar/pull/10432)
-- Fix hasMessageAvailable return true but can't read message [#10414](https://github.com/apache/pulsar/pull/10414)
-- Added more unit tests to the JavaInstanceTest class [#10369](https://github.com/apache/pulsar/pull/10369)
-- Fix authorization error if partition number of partitioned topic is updated. [#10333](https://github.com/apache/pulsar/pull/10333)
-- Fix the inconsistency of AdvertisedAddress [#10312](https://github.com/apache/pulsar/pull/10312)
-- Fix missing LoggerFactoryPtr type. [#10164](https://github.com/apache/pulsar/pull/10164)
-- Ensure read-lock is not continuously held on a section while iterating over concurrent maps [#9787](https://github.com/apache/pulsar/pull/9787)
-- Zookeeper connections monitor data [#9778](https://github.com/apache/pulsar/pull/9778)
-- Change getWorkerService method to throw UnsupportedOperationException [#9738](https://github.com/apache/pulsar/pull/9738)
-- Fix flaky unit test [#9262](https://github.com/apache/pulsar/pull/9262)
-- Supply debug log for OpAddEntry [#9239](https://github.com/apache/pulsar/pull/9239)
-
-#### Dependency upgrade
-- Upgrade Jetty to 9.4.42.v20210604 [#10907](https://github.com/apache/pulsar/pull/10907)
-
-#### Proxy
-- Enable AutoTopicCreationType partitioned through proxy [#8048](https://github.com/apache/pulsar/pull/8048)
-
-#### Pulsar Admin
-- Fix create partitioned topic in replicated namespace [#11140](https://github.com/apache/pulsar/pull/11140)
-- Add authoritative flag for topic policy to avoid redirect loop [#11131](https://github.com/apache/pulsar/pull/11131)
-- Fix non-persistent topic get partitioned metadata error on discovery [#10806](https://github.com/apache/pulsar/pull/10806)
-- Fix kinesis sink backoff class not found [#10744](https://github.com/apache/pulsar/pull/10744)
-
-#### Docker
-- K8s Function Name Length Check Allows Invalid StatefulSet [#10531](https://github.com/apache/pulsar/pull/10531)
-
-#### Client
-- [Java] Cleaned some code in GenericJsonRecord [#10527](https://github.com/apache/pulsar/pull/10527)
-- [C++] Avoid sending flow requests with zero permits [#10506](https://github.com/apache/pulsar/pull/10506)
-
-#### Functions and Pulsar IO
-- Fix kinesis sink connector does not ack messages [#10769](https://github.com/apache/pulsar/pull/10769)
-- Remove reference to ProducerSpec from Pulsar Functions GO [#10635](https://github.com/apache/pulsar/pull/10635)
-- Process async results in the same Java runnable thread [#10618](https://github.com/apache/pulsar/pull/10618)
-
-
-### 2.7.2
-
-#### 2021-05-11
-
-#### Broker
-- Fix the useless retry when the maximum number of subscriptions is reached [#9991](https://github.com/apache/pulsar/pull/9991)
-- wrong timeunit in updating lastLedgerCreationInitiationTimestamp [#10049](https://github.com/apache/pulsar/pull/10049)
-- Avoid spammy logs in case of BK problems [#10088](https://github.com/apache/pulsar/pull/10088)
-- Fix NonDurableCursorImpl initialPosition by startCursorPosition greater than lastConfirmedEntry problem. [#10095](https://github.com/apache/pulsar/pull/10095)
-- fix 8115 Some partitions get stuck after adding additional consumers to the KEY_SHARED subscriptions [#10096](https://github.com/apache/pulsar/pull/10096)
-- Add underReplicate state in the topic internal stats [#10013](https://github.com/apache/pulsar/pull/10013)
-- Continue graceful shutdown even if web service closing fails [#9835](https://github.com/apache/pulsar/pull/9835)
-- Issue 9804: Allow to enable or disable the cursor metrics [#9814](https://github.com/apache/pulsar/pull/9814)
-- Allow to configure BookKeeper all BK client features using bookkeeper_ prefix [#9232](https://github.com/apache/pulsar/pull/9232)
-- Fix NPEs and thread safety issue in PersistentReplicator [#9763](https://github.com/apache/pulsar/pull/9763)
-- Non Persistent Topics: Auto-create partitions even when the auto-creation is disabled [#9786](https://github.com/apache/pulsar/pull/9786)
-- Issue 9602: Add schema type validation [#9797](https://github.com/apache/pulsar/pull/9797)
-- Fix message not dispatch for key_shared sub type in non-persistent subscription [#9826](https://github.com/apache/pulsar/pull/9826)
-- zkBookieRackAffinityMapping bug to support for bookkeeper dnsResolver [#9894](https://github.com/apache/pulsar/pull/9894)
-- Messaging Fix delay message block [#10078](https://github.com/apache/pulsar/pull/10078)
-- Make PersistentDispatcherMultipleConsumers.readMoreEntries synchronized [#10435](https://github.com/apache/pulsar/pull/10435)
-- Fix issue in reusing EntryBatchIndexesAcks instances [#10400](https://github.com/apache/pulsar/pull/10400)
-- Fix schema not added when subscribing an empty topic without schema [#9853](https://github.com/apache/pulsar/pull/9853)
-- Support advertisedListeners for standalone [#10297](https://github.com/apache/pulsar/pull/10297)
-- Fix schema ledger deletion when deleting topic with delete schema. [#10383](https://github.com/apache/pulsar/pull/10383)
-- Fix primitive schema upload for ALWAYS_COMPATIBLE strategy. [#10386](https://github.com/apache/pulsar/pull/10386)
-- Fix schema type check issue when use always compatible strategy [#10367](https://github.com/apache/pulsar/pull/10367)
-- Fix CPU 100% when deleting namespace [#10337](https://github.com/apache/pulsar/pull/10337)
-- add return statement to exit asyncMarkDelete early on failure [#10272](https://github.com/apache/pulsar/pull/10272)
-- Adding more permits debug statements to better diagnose permit issues [#10217](https://github.com/apache/pulsar/pull/10217)
-
-#### Bookie
-- Fallback to PULSAR_GC if BOOKIE_GC is not defined [#9621](https://github.com/apache/pulsar/pull/9621)
-- Fallback to PULSAR_EXTRA_OPTS if BOOKIE_EXTRA_OPTS isn't defined [#10397](https://github.com/apache/pulsar/pull/10397)
-
-#### Dependency upgrade
-- Upgrade Bouncy Castle to 1.68 [#9199](https://github.com/apache/pulsar/pull/9199)
-- Upgrade athenz version and remove yahoo.bintray.com repository [#10471](https://github.com/apache/pulsar/pull/10471)
-- Upgrade Netty version to 4.1.60.final [#10073](https://github.com/apache/pulsar/pull/10073)
-- Upgrade commons-io to address CVE-2021-29425 [#10287](https://github.com/apache/pulsar/pull/10287)
-- Upgrade Jetty libraries to 9.4.39.v20210325 [#10177](https://github.com/apache/pulsar/pull/10177)
-
-#### Proxy
-- Issue 10221: Fix authorization error while using proxy and `Prefix` subscription authentication mode [#10226](https://github.com/apache/pulsar/pull/10226)
-
-#### Pulsar Admin
-- Add get version command for pulsar rest api, pulsar-admin, pulsar-client [#9975](https://github.com/apache/pulsar/pull/9975)
-
-#### Pulsar SQL
-- Using pulsar SQL query messages will appear NoSuchLedger… [#9910](https://github.com/apache/pulsar/pull/9910)
-
-#### Docker
-- Allow DockerImage to be built from source tarball [#9846](https://github.com/apache/pulsar/pull/9846)
-- Fix docker standalone image error [#10359](https://github.com/apache/pulsar/pull/10359)
-- Suppress printing of "skip Processing" lines in startup scripts [#10275](https://github.com/apache/pulsar/pull/10275)
-- Issue 10058:apply-config-from-env.py to commented default values [#10060](https://github.com/apache/pulsar/pull/10060)
-
-#### Client
-- [Java] Fix: seemingly equal ClientConfigurationData's objects end up not being equal [#10091](https://github.com/apache/pulsar/pull/10091)
-- [Java] Fix AutoConsumeSchema KeyValue encoding [#10089](https://github.com/apache/pulsar/pull/10089)
-- [Java] Fix error OutOfMemoryError while using KeyValue<GenericRecord, GenericRecord> [#9981](https://github.com/apache/pulsar/pull/9981)
-- [Java] Fix concurrency issue in incrementing epoch (#10278) [#10436](https://github.com/apache/pulsar/pull/10436)
-- [Java] Allow pulsar client receive external timer [#9802](https://github.com/apache/pulsar/pull/9802)
-- [Java] Handle NPE while receiving ack for closed producer [#8979](https://github.com/apache/pulsar/pull/8979)
-- [Java] Fix batch size not set when deserializing from byte array [#9855](https://github.com/apache/pulsar/pull/9855)
-- [Java] Fix ensure single-topic consumer can be closed [#9849](https://github.com/apache/pulsar/pull/9849)
-- [Java] Issue 9585: delete disconnected consumers to allow auto-discovery [#9660](https://github.com/apache/pulsar/pull/9660)
-- [Python] Support Python Avro schema set default value. [#10265](https://github.com/apache/pulsar/pull/10265)
-- [Python] Fix nested Map or Array in schema doesn't work [#9548](https://github.com/apache/pulsar/pull/9548)
-- [C++,Python] [PIP-60] Add TLS SNI support for cpp and python clients [#8957](https://github.com/apache/pulsar/pull/8957)
-- [C++] Fix C++ client cannot be built on Windows [#10363](https://github.com/apache/pulsar/pull/10363)
-- [C++] Fix paused zero queue consumer still pre-fetches messages [#10036](https://github.com/apache/pulsar/pull/10036)
-- [C++] Fix segfault when get topic name from received message id [#10006](https://github.com/apache/pulsar/pull/10006)
-- [C++] SinglePartition message router is always picking the same partition [#9702](https://github.com/apache/pulsar/pull/9702)
-- [C++] Reduce log level for ack-grouping tracker [#10094](https://github.com/apache/pulsar/pull/10094)
-- [WebSocket Client] WebSocket url token param value optimization [#10187](https://github.com/apache/pulsar/pull/10187)
-- [WebSocket Client] Make the browser client support the token authentication [#9886](https://github.com/apache/pulsar/pull/9886)
-
-#### Functions and Pulsar IO
-- Allow customizable function logging [#10389](https://github.com/apache/pulsar/pull/10389)
-- Pass through record properties from Pulsar Sources [#9943](https://github.com/apache/pulsar/pull/9943)
-- ISSUE 10153: Pulsar Functions Go fix time unit ns -> ms [#10160](https://github.com/apache/pulsar/pull/10160)
-- Kinesis Connector: Fix kinesis sink can not retry to send messages [#10420](https://github.com/apache/pulsar/pull/10420)
-- Kinesis Connector: Fix null error messages in onFailure exception in KinesisSink. [#10416](https://github.com/apache/pulsar/pull/10416)
-
-#### Tiered Storage
-- Prevent Class Loader Leak; Restore Offloader Directory Override [#9878](https://github.com/apache/pulsar/pull/9878)
-- Add logs for cleanup offloaded data operation [#9852](https://github.com/apache/pulsar/pull/9852)
-
-### 2.7.1
-
-#### 2021-03-18
-
-#### Broker
-
-- Fix topic ownership is not checked when getting topic policy [#9781](https://github.com/apache/pulsar/pull/9781)
-- Fix the issue of consumers cannot be created for older subscriptions if the limit of `maxSubscriptionsPerTopic` is reached [#9758](https://github.com/apache/pulsar/pull/9758)
-- Fix marking individual deletes as dirty [#9732](https://github.com/apache/pulsar/pull/9732)
-- Fix broker-address header added when response has already been committed [#9744](https://github.com/apache/pulsar/pull/9744)
-- Fix ByteBuffer allocate error in the AirliftUtils [#9667](https://github.com/apache/pulsar/pull/9667)
-- Use Atomic Field Updater to increment volatile messagesConsumedCounter [#9656](https://github.com/apache/pulsar/pull/9656)
-- Schema comparison logic change [#9612](https://github.com/apache/pulsar/pull/9612)
-- Add metrics for the cursor ack state [#9618](https://github.com/apache/pulsar/pull/9618)
-- Fix race condition in BrokerService topic cache [#9565](https://github.com/apache/pulsar/pull/9565)
-- Avoid introducing bookkeeper-common into the pulsar-common [#9551](https://github.com/apache/pulsar/pull/9551)
-- Async read entries with max size bytes [#9532](https://github.com/apache/pulsar/pull/9532)
-- Fix the metric data of msgDelayed for partitioned topics is not aggregated [#9529](https://github.com/apache/pulsar/pull/9529)
-- Fix the batch index ack persistent issue [#9504](https://github.com/apache/pulsar/pull/9504)
-- Fix logic in ManagedLedgerWriter when config threadNum >= ledgerNum [#9479](https://github.com/apache/pulsar/pull/9497)
-- Do not use a static map of listeners in TopicPoliciesService [#9486](https://github.com/apache/pulsar/pull/94861)
-- Makes subscription start from MessageId.latest as default [#9444](https://github.com/apache/pulsar/pull/9444)
-- Fix setting backlogQuota will always succeed [#9382](https://github.com/apache/pulsar/pull/9382)
-- Skip clear delayed messages while dispatch does not init [#9378](https://github.com/apache/pulsar/pull/9378)
-- Expose offloaded storage size to the topic stats [#9335](https://github.com/apache/pulsar/pull/9335)
-- Expose more info with unknown exception [#9323](https://github.com/apache/pulsar/pull/9323)
-- Add alerts for expired/expiring soon tokens [#9321](https://github.com/apache/pulsar/pull/9321)
-- Fix fake complete issue in offloading [#9306](https://github.com/apache/pulsar/pull/9306)
-- Fix system topic can not auto created [#9272](https://github.com/apache/pulsar/pull/9272)
-- Fix BookkeeperSchemaStorage NPE [#9264](https://github.com/apache/pulsar/pull/9264)
-- Fix race condition on producer/consumer maps in ServerCnx [#9256](https://github.com/apache/pulsar/pull/9256)
-- Fix interceptor disabled in ResponseHandlerFilter.java [#9252](https://github.com/apache/pulsar/pull/9252)
-- Fix the interceptor that not handle boundary for multipart/form-data [#9247](https://github.com/apache/pulsar/pull/9247)
-- Add authentication metrics [#9244](https://github.com/apache/pulsar/pull/9244)
-- Handle web application exception to redirect request [#9228](https://github.com/apache/pulsar/pull/9228)
-- Skip the interceptor for MediaType.MULTIPART_FORM_DATA [#9217](https://github.com/apache/pulsar/pull/9217)
-- Keep topic-level policies commands consistent with that for namespace level [#9215](https://github.com/apache/pulsar/pull/9215)
-- Fix handle topic loading failure due to broken schema ledger [#9212](https://github.com/apache/pulsar/pull/9212)
-- Fix issue with topic compaction when compaction ledger is empty [#9206](https://github.com/apache/pulsar/pull/9206)
-- Fix incoming message size issue that introduced in #9113 [#9182](https://github.com/apache/pulsar/pull/9182)
-- Disallow parsing of token with none signature in authenticateToken [#9172](https://github.com/apache/pulsar/pull/9172)
-- Fix locking for ConsumerImpl when creating deadLetterProducer [#9166](https://github.com/apache/pulsar/pull/9166)
-- Fix maxProducersPerTopic cannot be disabled at the namespace level [#9157](https://github.com/apache/pulsar/pull/9157)
-- Fix wrong default value [#9149](https://github.com/apache/pulsar/pull/9149)
-- Fix the closed ledger did not delete after expired [#9136](https://github.com/apache/pulsar/pull/9136)
-- Additional error checks in TwoPhasesCompactor [#9133](https://github.com/apache/pulsar/pull/9133)
-- Fix master broker while subscribing to non-persistent partitioned topics without topic auto-creation [#9107](https://github.com/apache/pulsar/pull/9107)
-- Support chained authentication with same auth method name [#9094](https://github.com/apache/pulsar/pull/9094)
-- Broker expires messages one at a time after topic unload [#9083](https://github.com/apache/pulsar/pull/9083)
-- Add refresh authentication command in broker [#9064](https://github.com/apache/pulsar/pull/9064)
-- Add updateRates method for kop to collect publish rate [#9094](https://github.com/apache/pulsar/pull/9049)
-- Fix DelayedDelivery at the broker level has a default value [#9030](https://github.com/apache/pulsar/pull/9030)
-- Getting the stats of a non-persistent topic that has been cleaned causes it to re-appear [#9029](https://github.com/apache/pulsar/pull/9029)
-- Add raw Prometheus metrics provider [#9021](https://github.com/apache/pulsar/pull/9021)
-- Improve error handling when broker doesn't trust client certificates [#8998](https://github.com/apache/pulsar/pull/8998)
-- Remove duplicated broker Prometheus metrics type [8995](https://github.com/apache/pulsar/pull/8995)
-- Peeking at compressed messages throws an exception (Readonly buffers not supported by Airlift) [#8990](https://github.com/apache/pulsar/pull/8990)
-- Make namespaces isolation policy updates take effect on time [#8976](https://github.com/apache/pulsar/pull/8976)
-- Fix NPE in PersistentStickyKeyDispatcherMultipleConsumers [#8969](https://github.com/apache/pulsar/pull/8969)
-- Fix the recovery not respect to the isolation group settings [#8961](https://github.com/apache/pulsar/pull/8961)
-- Add properties default value for SchemaInfoBuilder [#8952](https://github.com/apache/pulsar/pull/8952)
-- Consumer support update stats with specified stats [#8951](https://github.com/apache/pulsar/pull/8951)
-- Support configure max subscriptions per topic on the topic level policy [#8948](https://github.com/apache/pulsar/pull/8948)
-- Fix subscription dispatch rate does not work after the topic unload without dispatch rate limit [#8947](https://github.com/apache/pulsar/pull/8947)
-- Avro custom schema not working in consumer [#8939](https://github.com/apache/pulsar/pull/8939)
-- Expose non-contiguous deleted messages ranges stats [#8936](https://github.com/apache/pulsar/pull/8936)
-- Intercept beforeSendMessage calls [#8932](https://github.com/apache/pulsar/pull/8932)
-- Monitor if a cursor moves its mark-delete position [#8930](https://github.com/apache/pulsar/pull/8930)
-- Capture stats with precise backlog [#8928](https://github.com/apache/pulsar/pull/8928)
-- Support configure max subscriptions per topic on the namespace level policy [#8924](https://github.com/apache/pulsar/pull/8924)
-- Export Prometheus metric for messageTTL [#8871](https://github.com/apache/pulsar/pull/8871)
-- Add pulsar-perf new feature: one subscription has more than one consumer [#8837](https://github.com/apache/pulsar/pull/8837)
-- Execute removing non-persistent subscription of a topic from a different thread to avoid deadlock when removing inactive subscriptions [#8820](https://github.com/apache/pulsar/pull/8820)
-- Fix get partition metadata problem for a non-existed topic [#8818](https://github.com/apache/pulsar/pull/8818)
-- Fix the problem that batchMessageId is converted to messageIdImpl [#8779](https://github.com/apache/pulsar/pull/8779)
-- Clear delayed messages when clear backlog [#8691](https://github.com/apache/pulsar/pull/8691)
-- Fixes first automatic compaction issue [#8209](https://github.com/apache/pulsar/pull/8209)
-
-#### Proxy
-
-- Fix Proxy Config bindAddress does not working for servicePort [#9068](https://github.com/apache/pulsar/pull/9068)
-- Return correct authz and auth errors from proxy to client [#9055](https://github.com/apache/pulsar/pull/9055)
-- Fix the metadata setup compatibility issue [#8959](https://github.com/apache/pulsar/pull/8959)
-- Support HAProxy proxy protocol for broker and proxy [#8686](https://github.com/apache/pulsar/pull/8686)
-
-#### Pulsar Perf
-
-- Dump JVM information [#9769](https://github.com/apache/pulsar/pull/9769)
-- pulsar-perf uses DefaultCryptoKeyReader for E2E encryption [#9668](https://github.com/apache/pulsar/pull/9668)
-- Add --batch-index-ack for the pulsar-perf [#9521](https://github.com/apache/pulsar/pull/9521)
-
-#### Transaction
-
-- Fix deleteTransactionMarker memory leak [#9752](https://github.com/apache/pulsar/pull/9752)
-- Fix transaction messages order error and deduplication error [#9024](https://github.com/apache/pulsar/pull/9024)
-- Fix transaction log replay not handle right [#8723](https://github.com/apache/pulsar/pull/8723)
-
-#### Pulsar Admin
-
-- Validate offload param [#9737](https://github.com/apache/pulsar/pull/9737)
-- Inform user when expiring message request is not executed. [#9561](https://github.com/apache/pulsar/pull/9561)
-- Fix get-message-by-id throwing NPE when message is null [#9537](https://github.com/apache/pulsar/pull/9537)
-- Expire message by position [#9519](https://github.com/apache/pulsar/pull/9519)
-- Add subscription backlog size info for topicstats [#9302](https://github.com/apache/pulsar/pull/9302)
-- Expose schema ledger in `topic stats-internal` [#9284](https://github.com/apache/pulsar/pull/9284)
-- Fix potential HTTP get hangs in the Pulsar Admin [#9203](https://github.com/apache/pulsar/pull/9203)
-- Fix admin-api-brokers list failed [#9191](https://github.com/apache/pulsar/pull/9191)
-- Fix force delete namespace did not delete all topics of the namespace [#8806](https://github.com/apache/pulsar/pull/8806)
-- Change method `getWebServiceUrl` into async [#8746](https://github.com/apache/pulsar/pull/8746)
-- Fix cannot get lastMessageId for an empty topic due to message retention [#8725](https://github.com/apache/pulsar/pull/8725)
-
-#### Pulsar SQL
-
-- Duplicate key `__pfn_input_topic__` in presto server [#9686](https://github.com/apache/pulsar/pull/9686)
-- Pulsar sql key-value schema separated model support [#9685](https://github.com/apache/pulsar/pull/9685)
-- Fix OffloadPolicies json serialization error in Pulsar SQL [#9300](https://github.com/apache/pulsar/pull/9300)
-
-#### Client
-
-- [Java] Add original info when publishing message to dead letter topic [#9655](https://github.com/apache/pulsar/pull/9655)
-- [Java] Fix hasMessageAvailable() with empty topic [#9798](https://github.com/apache/pulsar/pull/9798)
-- [Java] Add BouncyCastleProvider as security provider to prevent NPE [#9601](https://github.com/apache/pulsar/pull/9601)
-- [Java] Async the DLQ process [#9552](https://github.com/apache/pulsar/pull/9552)
-- [Java] Fix the partition number not equals expected error [#9446](https://github.com/apache/pulsar/pull/9446)
-- [Java] Cleanup consumer on multitopic subscribe failure [#9419](https://github.com/apache/pulsar/pull/9419)
-- [Java] Compression must be applied during deferred schema preparation and enableBatching is enabled [#9396](https://github.com/apache/pulsar/pull/9396)
-- [Java] Add default implementation of CryptoKeyReader [#9379](https://github.com/apache/pulsar/pull/9379)
-- [Java] Able to handling messages with multiple listener threads in order for the Key_Shared subscription [#9329](https://github.com/apache/pulsar/pull/9329)
-- [Java] Fix NPE when MultiTopicsConsumerImpl receives null value messages [#9113](https://github.com/apache/pulsar/pull/9113)
-- [Java] Fix Unavailable Hash Range Condition [#9041](https://github.com/apache/pulsar/pull/9041)
-- [Java] Add more information in send timeout exception [#8931](https://github.com/apache/pulsar/pull/8931)
-- [Java] GenericJsonReader converts the null value to string "null" [#8883](https://github.com/apache/pulsar/pull/8883)
-- [Java] Always remove message data size [#8566](https://github.com/apache/pulsar/pull/8566)
-- [Python] Support python end to end encryption [#9588](https://github.com/apache/pulsar/pull/9588)
-- [C++] Add 'encrypted' option in commands.newproducer() [#9542](https://github.com/apache/pulsar/pull/9542)
-- [C++] Remove namespace check for MultiTopicsConsumerImpl [#9520](https://github.com/apache/pulsar/pull/9520)
-- [C++] Fix broken replication msg to specific cluster [#9372](https://github.com/apache/pulsar/pull/9372)
-- [C++] Fix compilation issue caused by non-virtual destructor [#9106](https://github.com/apache/pulsar/pull/9106)
-- [C++] Expose cpp end to end encryption interface [#9074](https://github.com/apache/pulsar/pull/9074)
-- [C++] Fix Consumer send redeliverMessages repeatedly [#9072](https://github.com/apache/pulsar/pull/9072)
-- [C++] Add consumer's configs for reader [#8905](https://github.com/apache/pulsar/pull/8905)
-- [C++] Add reader internal subscription name setter [#8823](https://github.com/apache/pulsar/pull/8823)
-- [C++] Fix race condition in BlockingQueue [#8765](https://github.com/apache/pulsar/pull/8765)
-- [C++] Fix cpp client do AcknowledgeCumulative not clean up previous message [#8606](https://github.com/apache/pulsar/pull/8606)
-- [C++] Implement batch aware producer router [#8395](https://github.com/apache/pulsar/pull/8395)
-- [Websocket] Fix the initial sequence id error [#8724](https://github.com/apache/pulsar/pull/8724)
-
-#### Function
-
-- Add downloadDirectory support to function k8s runtime [#9619](https://github.com/apache/pulsar/pull/9619)
-- Kubernetes runtime functions create rfc1123 compliant labels [#9556](https://github.com/apache/pulsar/pull/9556)
-- Fix can't create functions with m-TLS [#9553](https://github.com/apache/pulsar/pull/9553)
-- Fix reading metrics will always get stuck in some cases [#9538](https://github.com/apache/pulsar/pull/9538)
-- Call the corresponding restart according to the componentype [#9519](https://github.com/apache/pulsar/pull/9519)
-- Fix narExtractionDirectory not set [#9319](https://github.com/apache/pulsar/pull/9319)
-- Fix java function logging appender not added to java function logger [#9299](https://github.com/apache/pulsar/pull/9299)
-- Fix don't attempt to clean up packages when Source/Sink is builtin [#9289](https://github.com/apache/pulsar/pull/9289)
-- Fix function worker get superuser role [#9259](https://github.com/apache/pulsar/pull/9259)
-- Fix broker and functions-worker authentication compatibility [#9190](https://github.com/apache/pulsar/pull/9190)
-- Splitting the authentication logic of function worker and client [#8824](https://github.com/apache/pulsar/pull/8824)
-- [Go] Fix metrics server handler error [#9394](https://github.com/apache/pulsar/pull/9394)
-- [Go] Add metrics server to go function [#9318](https://github.com/apache/pulsar/pull/9318)
-- [Go] Fix publishfunc example is broken [#9124](https://github.com/apache/pulsar/pull/9124)
-
-#### Pulsar IO
-
-- Add option for auto.offset.reset to kafka source [#9482](https://github.com/apache/pulsar/pull/9482)
-- Fix debezium-connector error log [#9063](https://github.com/apache/pulsar/pull/9063)
-- Fix NSQ source META-INF file name and sourceConfigClass [#8941](https://github.com/apache/pulsar/pull/8941)
-- Make Source topic Schema information available to downstream Sinks [#8854](https://github.com/apache/pulsar/pull/8854)
-
-#### Tiered Storage
-
-- Allow AWS credentials to be refreshed [#9387](https://github.com/apache/pulsar/pull/9387)
-- Offload manager initialization once [#8739](https://github.com/apache/pulsar/pull/8739)
-- Configurable data source for offloaded messages [#8717](https://github.com/apache/pulsar/pull/8717)
-
-### 2.6.3
-
-#### 2021-01-26
-
-#### Broker
-
-- Update the BookKeeper to version 4.11.1 [#8604](https://github.com/apache/pulsar/pull/8604)
-- Use the correct configuration for the expiration time of the ZooKeeper cache [#8302](https://github.com/apache/pulsar/pull/8302)
-- Refresh ZooKeeper-data cache in background to avoid deadlock and blocking IO on the ZooKeeper thread [#8304](https://github.com/apache/pulsar/pull/8304)
-- Add `elapsedMs` in the creation of the ledger log [#8473](https://github.com/apache/pulsar/pull/8473)
-- Fix the race condition when calling `acknowledgementWasProcessed()` [#8499](https://github.com/apache/pulsar/pull/8499)
-- Fix the way to handle errors for client requests [#8518](https://github.com/apache/pulsar/pull/8518)
-- Expose consumer names after the mark delete position for the Key_Shared subscription [#8545](https://github.com/apache/pulsar/pull/8545)
-- Close topics that remain fenced forcefully [#8561](https://github.com/apache/pulsar/pull/8561)
-- Expose the last disconnected timestamp for producers and consumers [#8605](https://github.com/apache/pulsar/pull/8605)
-- Support the HAProxy proxy protocol for Pulsar broker and Pulsar Proxy [#8686](https://github.com/apache/pulsar/pull/8686)
-- Clear delayed messages when clearing the backlog [#8691](https://github.com/apache/pulsar/pull/8691)
-- Fix the Jclouds Azure credential error [#8693](https://github.com/apache/pulsar/pull/8693)
-- Improve environment configiguration handling [#8709](https://github.com/apache/pulsar/pull/8709)
-- Fix the issue with failing to get `lastMessageId` for an empty topic due to message retention [#8725](https://github.com/apache/pulsar/pull/8725)
-- Ensure that the Offload manager is initialized once [#8739](https://github.com/apache/pulsar/pull/8739)
-- Fix the issue with getting partition metadata for a non-existed topic [#8818](https://github.com/apache/pulsar/pull/8818)
-- Fix the exception cast error [#8828](https://github.com/apache/pulsar/pull/8828)
-- Export Prometheus metric for messageTTL [#8871](https://github.com/apache/pulsar/pull/8871)
-- Fix the issue that GenericJsonReader converts the null value to string "null" [#8883](https://github.com/apache/pulsar/pull/8883)
-- Capture stats with precise backlog [#8928](https://github.com/apache/pulsar/pull/8928)
-- Monitor if a cursor moves its mark-delete position [#8930](https://github.com/apache/pulsar/pull/8930)
-- Intercept `beforeSendMessage` calls [#8932](https://github.com/apache/pulsar/pull/8932)
-- Expose non-contiguous deleted messages ranges stats [#8936](https://github.com/apache/pulsar/pull/8936)
-- Fix NPE in `PersistentStickyKeyDispatcherMultipleConsumers` [#8969](https://github.com/apache/pulsar/pull/8969)
-- Fix the issue that an exception is thrown when peeking at compressed messages (Readonly buffers are not supported by Airlift) [#8990](https://github.com/apache/pulsar/pull/8990)
-- Remove the duplicated broker Prometheus metrics type [#8995](https://github.com/apache/pulsar/pull/8995)
-- Improve the way to handle errors when the broker does not trust client certificates [#8998](https://github.com/apache/pulsar/pull/8998)
-- Add the raw Prometheus metrics provider [#9021](https://github.com/apache/pulsar/pull/9021)
-- Support chained authentication with same authentication method name [#9094](https://github.com/apache/pulsar/pull/9094)
-- Fix regression in apply-config-from-env.py [#9097](https://github.com/apache/pulsar/pull/9097)
-
-#### Proxy
-
-- Fix the `request.getContentLength()` to return 0 if it is less than 0 [#8448](https://github.com/apache/pulsar/pull/8448)
-- Add the error log for the Pulsar Proxy starter [#8451](https://github.com/apache/pulsar/pull/8451)
-- Support enabling WebSocket on Pulsar Proxy [#8613](https://github.com/apache/pulsar/pull/8613)
-- Fix the issue that the Proxy `bindAddress` configuration does not work for the `servicePort` [#9068](https://github.com/apache/pulsar/pull/9068)
-
-#### Java Client
-
-- Fix the connection leak [#6524](https://github.com/apache/pulsar/pull/6524)
-- Cancel the sendtimeout task for the producer after creation failure [#8497](https://github.com/apache/pulsar/pull/8497)
-- Fix the typo in `pulsar-client-all` module's pom.xml file [#8543](https://github.com/apache/pulsar/pull/8543)
-- Add more information in send timeout exception [#8931](https://github.com/apache/pulsar/pull/8931)
-- Fix the unavailable hash range condition [#9041](https://github.com/apache/pulsar/pull/9041)
-- Fix NPE when `MultiTopicsConsumerImpl` receives null-value messages [#9113](https://github.com/apache/pulsar/pull/9113)
-- Fix the issue with the incoming message size that is introduced by issue #9113 [#9182](https://github.com/apache/pulsar/pull/9182)
-
-#### C++ Client
-
-- Catch the exception thrown by the remote_endpoint [#8486](https://github.com/apache/pulsar/pull/8486)
-- Fix the potential crash caused by the AckGroupTracker's timer [#8519](https://github.com/apache/pulsar/pull/8519)
-- Fix the race condition in `BlockingQueue` [#8765](https://github.com/apache/pulsar/pull/8765)
-- Add the reader internal subscription name setter [#8823](https://github.com/apache/pulsar/pull/8823)
-- Add consumer's configurations for the reader [#8905](https://github.com/apache/pulsar/pull/8905)
-
-#### Python Client
-
-- Add Oauth2 client wrapper for the python client [#7813](https://github.com/apache/pulsar/pull/7813)
-
-#### Pulsar Perf
-
-- Support WebSocket Producer for V2 topics [#8535](https://github.com/apache/pulsar/pull/8535)
-
-#### Pulsar IO
-
-- Make Schema information of Source topic available to downstream Sinks [#8854](https://github.com/apache/pulsar/pull/8854)
-- Fix the error log of the Debezium connector [#9063](https://github.com/apache/pulsar/pull/9063)
-
-#### Functions
-
-- Propagate user-defined parameter into instances of Golang Pulsar Functions [#8132](https://github.com/apache/pulsar/pull/8132)
-- Go functions supports Kubernetes runtime [#8352](https://github.com/apache/pulsar/pull/8352)
-
-### 2.7.0
-
-#### 2020-11-25
-
-The following lists fixes and enhancements in the 2.7.0 release.
-
-#### Transactions
-
-- Implement the Transaction Buffer Client [#6544](https://github.com/apache/pulsar/pull/6544)
-- Support produce messages with transaction and commit transaction [#7552](https://github.com/apache/pulsar/pull/7552)
-- Support consume transaction messages [#7781](https://github.com/apache/pulsar/pull/7781) [#7833](https://github.com/apache/pulsar/pull/7833)
-- Message acknowledgment with transaction [#7856](https://github.com/apache/pulsar/pull/7856) [#8007](https://github.com/apache/pulsar/pull/8007)
-- Support transaction abort on partition [#7953](https://github.com/apache/pulsar/pull/7953)
-- Support transaction abort on subscription [#7979](https://github.com/apache/pulsar/pull/7979)
-- Handle pending ack at the client side [#8037](https://github.com/apache/pulsar/pull/8037)
-- Pending ack state implementation [#8426](https://github.com/apache/pulsar/pull/8426)
-- Support get reponse for message acknowledge [#8161](https://github.com/apache/pulsar/pull/8161)
-- Refactor the transaction buffer implementation [#8291](https://github.com/apache/pulsar/pull/8291) [#8347](https://github.com/apache/pulsar/pull/8347)
-- Transaction marker deletion [#8318](https://github.com/apache/pulsar/pull/8318)
-- Support produce messages with transaction in batch [#8415](https://github.com/apache/pulsar/pull/8415)
-- Register transaction metadata before send or ack messages [#8493](https://github.com/apache/pulsar/pull/8493)
-- Expose transaction interface [#8505](https://github.com/apache/pulsar/pull/8505)
-- Guarantee transaction metadata handlers connected [#8563](https://github.com/apache/pulsar/pull/8563)
-- Add the batch size in transaction ack command [#8659](https://github.com/apache/pulsar/pull/8659)
-- Implement the Transaction Log [#8658](https://github.com/apache/pulsar/pull/8658)
-
-#### Topic policy
-
-- Support setting message TTL on topic level [#7738](https://github.com/apache/pulsar/pull/7738)
-- Support setting retention on topic level [#7747](https://github.com/apache/pulsar/pull/7747)
-- Support setting delayed delivery policy on topic level [#7784](https://github.com/apache/pulsar/pull/7784)
-- Support setting max unacked message per subscription on topic level [#7802](https://github.com/apache/pulsar/pull/7802)
-- Support setting persistence policie on topic level [#7817](https://github.com/apache/pulsar/pull/7817)
-- Support setting max unacked messages per consumer on topic level [#7818](https://github.com/apache/pulsar/pull/7818)
-- Support setting deduplication policy on topic level [#7821](https://github.com/apache/pulsar/pull/7821)
-- Support setting message dispatch rate on topic level [#7863](https://github.com/apache/pulsar/pull/7863))
-- Support setting compaction threshold on topic level [#7881](https://github.com/apache/pulsar/pull/7881)
-- Support setting offload policy on topic level [#7883](https://github.com/apache/pulsar/pull/7883)
-- Support setting max producers for a topic [#7914](https://github.com/apache/pulsar/pull/7914)
-- Support setting max consumers for a topic [#7968](https://github.com/apache/pulsar/pull/7968)
-- Support setting publish rate limitation for a topic [#7948](https://github.com/apache/pulsar/pull/7948)
-- Support setting inactive topic policy on topic level [#7986](https://github.com/apache/pulsar/pull/7986)
-- Support setting subscribe rate for a topic [#7991](https://github.com/apache/pulsar/pull/7991)
-- Support setting max consumers per subscription on topic level [#8003](https://github.com/apache/pulsar/pull/8003)
-- Support setting subscription dispatch rate on topic level [#8087](https://github.com/apache/pulsar/pull/8087)
-- Support setting deduplication snapshot interval on topic level [#8552](https://github.com/apache/pulsar/pull/8552)
-
-#### Broker
-
-- Upgrade BookKeeper version to 4.12.0 [#8447](https://github.com/apache/pulsar/pull/8447)
-- Capture the add entry latency of managed-ledger [#4419](https://github.com/apache/pulsar/pull/4419)
-- Keep max-concurrent http web-request configurable [#7250](https://github.com/apache/pulsar/pull/7250)
-- Perform the unload in background after bundle split [#7387](https://github.com/apache/pulsar/pull/7387)
-- Cleanup already deleted namespace topics when remove cluster [#7473](https://github.com/apache/pulsar/pull/7473)
-- Support partitioned topics in the Reader [#7518](https://github.com/apache/pulsar/pull/7518)
-- Support partitioned topic lookup [#7605](https://github.com/apache/pulsar/pull/7605)
-- Make OrderedExecutor threads number configurable [#7765](https://github.com/apache/pulsar/pull/7765)
-- Add config to lazily recover cursors when recovering a managed ledger [#7858](https://github.com/apache/pulsar/pull/7858)
-- Make BookKeeper throttle configurable [#7901](https://github.com/apache/pulsar/pull/7901)
-- Report compacted topic ledger info when calling get internal stats [#7988](https://github.com/apache/pulsar/pull/7988)
-- Add broker config to enforce producer to publish encrypted message [#8055](https://github.com/apache/pulsar/pull/8055)
-- Expose ensemble placement policy in bookkeeper.conf [#8210](https://github.com/apache/pulsar/pull/8210)
-- Support limit topic publish rate at the broker level [#8235](https://github.com/apache/pulsar/pull/8235)
-- Support limit the max tenants of the Pulsar cluster [#8261](https://github.com/apache/pulsar/pull/8261)
-- Support limit the max namespaces per tenant [#8267](https://github.com/apache/pulsar/pull/8267)
-- Support limit max subscriptions per topic [#8289](https://github.com/apache/pulsar/pull/8289)
-- Added metrics for topic lookups operations [#8272](https://github.com/apache/pulsar/pull/8272)
-- Added REST handler for broker ready probe [#8303](https://github.com/apache/pulsar/pull/8303)
-- Configure namespace anti-affinity in local policies [#8349](https://github.com/apache/pulsar/pull/8349)
-- Handle hash collision in KeyShared subscription mode [#8396](https://github.com/apache/pulsar/pull/8396)
-- Configure maxMsgReplDelayInSeconds for each repl-cluster [#8409](https://github.com/apache/pulsar/pull/8409)
-- Support taking de-duplication snapshots based on time [#8474](https://github.com/apache/pulsar/pull/8474)
-- Support namespace-level duplication snapshot [#8506](https://github.com/apache/pulsar/pull/8506)
-- Expose consumer names after the mark delete position for the Key_Shared subscription [#8545](https://github.com/apache/pulsar/pull/8545)
-- Close topics that remain fenced forcefully [#8561](https://github.com/apache/pulsar/pull/8561)
-
-#### Functions
-
-- Separate out FunctionMetadata related helper functions [#7146](https://github.com/apache/pulsar/pull/7146)
-- Attach names for all producers/readers in worker service [#7165](https://github.com/apache/pulsar/pull/7165)
-- Add support to read compacted topic [#7193](https://github.com/apache/pulsar/pull/7193)
-- Re-work Function MetaDataManager to make all metadata writes only by the leader [#7255](https://github.com/apache/pulsar/pull/7255)
-- Fix leader/scheduler assignment processing lag problem [#7237](https://github.com/apache/pulsar/pull/7237)
-- Set source spec's negativeacktimeout as well as timeout [#7337](https://github.com/apache/pulsar/pull/7337)
-- Add an endpoint to check whether function worker service is initialized [#7350](https://github.com/apache/pulsar/pull/7350)
-- Functions metadata compaction [#7377](https://github.com/apache/pulsar/pull/7377)
-- Implement rebalance mechanism [#7388](https://github.com/apache/pulsar/pull/7388)
-- Improve security setting [#7424](https://github.com/apache/pulsar/pull/7424)
-- Allow function rebalance to be run periodically [#7449](https://github.com/apache/pulsar/pull/7449)
-- Log scheduler stats for Pulsar Functions [#7474](https://github.com/apache/pulsar/pull/7474)
-- Add BatchPushSource interface [#7493](https://github.com/apache/pulsar/pull/7493)
-- Rejigger contract between LeaderService and rest of components [#7520](https://github.com/apache/pulsar/pull/7520)
-- Allow null consume in BatchPushSource [#7573](https://github.com/apache/pulsar/pull/7573)
-- Add readiness api for the worker leader [#7601](https://github.com/apache/pulsar/pull/7601)
-- Reduce in the leader init time in Pulsar Functions [#7611](https://github.com/apache/pulsar/pull/7611)
-- Export Function worker internal stats via Prometheus [#7641](https://github.com/apache/pulsar/pull/7641)
-- Allow ability to specify retain key ordering in functions [#7647](https://github.com/apache/pulsar/pull/7647)
-- Added ability to specify runtime for localrunner [#7681](https://github.com/apache/pulsar/pull/7681)
-- Add additional metrics for Pulsar Function Worker [#7685](https://github.com/apache/pulsar/pull/7685)
-- Use available cores for io thread processing [#7689](https://github.com/apache/pulsar/pull/7689)
-- Added ability to specify producer config for functions and sources [#7721](https://github.com/apache/pulsar/pull/7721)
-- Allow the option to make producers thread local [#7764](https://github.com/apache/pulsar/pull/7764)
-- Add ability for BatchPushSource to notify errors asynchronously [#7865](https://github.com/apache/pulsar/pull/7865)
-- Allow ability to specify sub position in functions [#7891](https://github.com/apache/pulsar/pull/7891)
-- Add hostname to consumer/producer properties in Pulsar Functions [#7897](https://github.com/apache/pulsar/pull/7897)
-- Allow specifying state storage url for Source/Sink localrun [#7930](https://github.com/apache/pulsar/pull/7930)
-- Enable function worker JVM metrics to be reported via Prometheus [#8097](https://github.com/apache/pulsar/pull/8097)
-- Add ability to specify EnvironmentBasedSecretsProvider in LocalRunner [#8098](https://github.com/apache/pulsar/pull/8098)
-- Added ability to specify secrets class in localrunner builder [#8127](https://github.com/apache/pulsar/pull/8127)
-- Add access to the current message from the function context [#8290](https://github.com/apache/pulsar/pull/8290)
-- Enable e2e encryption for Pulsar Function [#8432](https://github.com/apache/pulsar/pull/8432)
-- Support key_based batch builder for functions and sources [#8523](https://github.com/apache/pulsar/pull/8523)
-- Refactor Context and State API to allow plugging different state store implementations [#8537](https://github.com/apache/pulsar/pull/8537)
-
-#### IO connectors
-
-- [HDFS] Add config to create sub directory from current time [#7771](https://github.com/apache/pulsar/pull/7771)
-- [NSQ] Add NSQ Source [#8372](https://github.com/apache/pulsar/pull/8372)
-
-#### Schema
-
-- Add java8 date and time type to primitive schemas [#7874](https://github.com/apache/pulsar/pull/7874)
-- Native protobuf schema support [#7874](https://github.com/apache/pulsar/pull/7874)
-- Refactor multi-version schema reader [#8464](https://github.com/apache/pulsar/pull/8464)
-
-#### Tiered storage
-- Support Azure BlobStore offload [#8436](https://github.com/apache/pulsar/pull/8436)
-
-#### Clients
-
-- [Java] Support acknowledging a list of messages [#7688](https://github.com/apache/pulsar/pull/7688)
-- [Java] Remove UUID generation on sending message [#7705](https://github.com/apache/pulsar/pull/7705)
-- [Java] Perform producer compression from IO threads [#7733](https://github.com/apache/pulsar/pull/7733)
-- [C++] Allow to configure KeyShared with out of order delivery [#7842](https://github.com/apache/pulsar/pull/7842)
-- [Java] Await thread pool termination when closing Pulsar client [#7962](https://github.com/apache/pulsar/pull/7962)
-- [Java] Support non-durable subscription for pulsar-client cli [#8100](https://github.com/apache/pulsar/pull/8100)
-- [Java] Cancel producer sendtimeout task after creation failure [#8497](https://github.com/apache/pulsar/pull/8497)
-- [cgo] Remove CGO client from repo [#8514](https://github.com/apache/pulsar/pull/8514)
-
-
-#### Admin
-
-- [Pulsar Admin] support config request timeout [#7698](https://github.com/apache/pulsar/pull/7698)
-- [Pulsar Admin] Ensure deleting a partitioned-topic on a non existing namespace returns 404 [#7777](https://github.com/apache/pulsar/pull/7777)
-- [Pulsar Admin] Added support to force deleting namespace [#7993](https://github.com/apache/pulsar/pull/7993)
-- [Pulsar Admin] Allow to get ledger metadata along with topic stats-internal [#8180](https://github.com/apache/pulsar/pull/8180)
-- [Pulsar Admin] Support remove namespace level offload policy [#8446](https://github.com/apache/pulsar/pull/8446)
-- [Pulsar Admin] Suport get list of bundles under a namespace [#8450](https://github.com/apache/pulsar/pull/8450)
-- [Pulsar Admin] Add ability to examine specific message by position relative to earliest or latest message [#8494](https://github.com/apache/pulsar/pull/8494)
-- [Pulsar Admin] Add key-shared consumer range to internal topic stats [#8567](https://github.com/apache/pulsar/pull/8567)
-
-#### Fixes
-
-- [Java Client] Fix connection leak [#6524](https://github.com/apache/pulsar/pull/6524)
-- [Broker] Prevent redirection of lookup requests from looping [#7200](https://github.com/apache/pulsar/pull/7200)
-- [Broker] Ensure that admin operations are gated by super user check [#7226](https://github.com/apache/pulsar/pull/7226)
-- [Broker] Fix race condition when delete topic forcelly [#7356](https://github.com/apache/pulsar/pull/7356)
-- [Tiered Storage] Fix NPE when offload data to GCS [#7400](https://github.com/apache/pulsar/pull/7400)
-- [Function]Fix race condition in which exitFuture in FunctionAssignmentTailer never gets completed even though the tailer thread has exited [#7351](https://github.com/apache/pulsar/pull/7351)
-- [Function] Various fixes and optimizations for processing assignments in function worker [#7338](https://github.com/apache/pulsar/pull/7338)
-- [Function] Fix deadlock between create function and leader initialization [#7508](https://github.com/apache/pulsar/pull/7508)
-- [Pulsar Admin] Fix exceptions being ignored in PulsarAdmin [#7510](https://github.com/apache/pulsar/pull/7510)
-- [Broker] Fix the nondurable consumer can not specify the initial position [#7702](https://github.com/apache/pulsar/pull/7702)
-- [Broker] Fixed race condition on deleting topic with active readers [#7715](https://github.com/apache/pulsar/pull/7715)
-- [Broker] Avoid ConcurrentModificationException of LocalBrokerData [#7729](https://github.com/apache/pulsar/pull/7729)
-- [C++ Client] Fix race condition caused by consumer seek and close [#7819](https://github.com/apache/pulsar/pull/7819)
-- [Pulsar Proxy] Fix memory leak with debug log-level [#7963](https://github.com/apache/pulsar/pull/7963)
-- [Broker] Double check from zookeeper if availableBrokers is empty for discovery service [#7975](https://github.com/apache/pulsar/pull/7975)
-- [Broker] Fix broker-ml bucket stats show high metrics rate [#8218](https://github.com/apache/pulsar/pull/8218)
-- [Broker] Fix incorrect configuration for zk-cache expire time [#8302](https://github.com/apache/pulsar/pull/8302)
-- [Function] Fix returned status code for get function state when state does not exist [#8437](https://github.com/apache/pulsar/pull/8437)
-- [Broker] Fix the residual of inactive partitioned-topic cleaning [#8442](https://github.com/apache/pulsar/pull/8442)
-- [Pulsar Proxy] Fix request.getContentLength() to return 0 if it is less than 0 [#8448](https://github.com/apache/pulsar/pull/8448)
-- [Broker] Fix race condition when calling acknowledgementWasProcessed() [#8499](https://github.com/apache/pulsar/pull/8499)
-- [Java Client] Fix handling errors for client requests [#8518](https://github.com/apache/pulsar/pull/8518)
-- [C++ Client] Fix potential crash caused by AckGroupTracker's timer [#8519](https://github.com/apache/pulsar/pull/8519)
-
-### 2.6.2
-
-#### 2020-11-09
-
-The following lists fixes and enhancements in the 2.6.2 release.
-
-#### Broker
-
-- [Broker] Catch throwable when start pulsar [7221](https://github.com/apache/pulsar/pull/7221)
-- [Broker] Protobuf-shaded package can not update version [7228](https://github.com/apache/pulsar/pull/7228)
-- [Broker] Check for null arguments in Namespaces Rest API [7247](https://github.com/apache/pulsar/pull/7247)
-- [Broker] Handle SubscriptionBusyException in resetCursor api [7335](https://github.com/apache/pulsar/pull/7335)
-- [Broker] Converted the namespace bundle unload into async operation [7364](https://github.com/apache/pulsar/pull/7364)
-- [Broker] Update Jersey to 2.31 [7515](https://github.com/apache/pulsar/pull/7515)
-- [Broker] Stop to dispatch when skip message temporally since Key_Shared consumer stuck on delivery [7553](https://github.com/apache/pulsar/pull/7553)
-- [Broker] Fix bug where producer for geo-replication is not closed when topic is unloaded [7735](https://github.com/apache/pulsar/pull/7735)
-- [Broker] Make resetting cursor in REST API asynchronous [7744](https://github.com/apache/pulsar/pull/7744)
-- [Broker] Reestablish namespace bundle ownership from false negative releasing and false positive acquiring [7773](https://github.com/apache/pulsar/pull/7773)
-- [Broker] make pulsar executor pool size configurable [7782](https://github.com/apache/pulsar/pull/7782)
-- [Broker] Redirect Get message by id request when broker not serve for the topic [7786](https://github.com/apache/pulsar/pull/7786)
-- [Broker] Make zk cache executor thread pool size configurable [7794](https://github.com/apache/pulsar/pull/7794)
-- [Broker] Implement toString() method for TopicMessageIdImpl class [7807](https://github.com/apache/pulsar/pull/7807)
-- [Broker] Fix pending batchIndexAcks bitSet batchSize in PersistentAcknowledgmentsGroupingTracker [7828](https://github.com/apache/pulsar/pull/7828)
-- [Broker] Fix deadlock when adding consumer [7841](https://github.com/apache/pulsar/pull/7841)
-- [Broker] Split message ranges by ledger ID and store them in individualDeletedMessages [7861](https://github.com/apache/pulsar/pull/7861)
-- [Broker] Fix pulsar metrics providing wrong information [7905](https://github.com/apache/pulsar/pull/7905)
-- [Broker] Don't fail the health check request when trying to delete the previous subscription [7906](https://github.com/apache/pulsar/pull/7906)
-- [Broker] Add configuration to set number of channels per bookie [7910](https://github.com/apache/pulsar/pull/7910)
-- [Broker] Fix publish buffer of one ServerCnx calculated multi-times when check broker's publish buffer [7926](https://github.com/apache/pulsar/pull/7926)
-- [Broker] Add some logging to improve Authentication debugging and Fix typos in code "occured" -> "occurred" [7934](https://github.com/apache/pulsar/pull/7934)
-- [Broker] Fix NPE when acknowledge messages at the broker side [7937](https://github.com/apache/pulsar/pull/7937)
-- [Broker] Fix the wrong issuer url concatenate [7980](https://github.com/apache/pulsar/pull/7980)
-- [Broker] Upgrade the snakeyaml version to 1.26 [7994](https://github.com/apache/pulsar/pull/7994)
-- [Broker] Exclude vertx from bookkeeper-http package [7997](https://github.com/apache/pulsar/pull/7997)
-- [Broker] Check null point before setting auto read [7999](https://github.com/apache/pulsar/pull/7999)
-- [Broker] Fix IndexOutOfBoundsException in the KeyShared subscription when dispatching messages to consumers [8024](https://github.com/apache/pulsar/pull/8024)
-- [Broker] Upgrade jetty-util version to 9.4.31 [8035](https://github.com/apache/pulsar/pull/8035)
-- [Broker] Add replicated check to checkInactiveSubscriptions [8066](https://github.com/apache/pulsar/pull/8066)
-- [Broker] Add get-last-message-id admin for v1 api [8081](https://github.com/apache/pulsar/pull/8081)
-- [Broker] Fix client lookup hangs when broker restarts [8101](https://github.com/apache/pulsar/pull/8101)
-- [Broker] Should not cache the owner that does not belong to current server [8111](https://github.com/apache/pulsar/pull/8111)
-- [Broker] Support to specify multi ipv6 hosts in brokerServiceUrl [8120](https://github.com/apache/pulsar/pull/8120)
-- [Broker] Intercept messages to consumers and add intercept exception [8129](https://github.com/apache/pulsar/pull/8129)
-- [Broker] Add ChannelFutures utility class to pulsar-common [8137](https://github.com/apache/pulsar/pull/8137)
-- [Broker] Support Disable Replicated Subscriptions [8144](https://github.com/apache/pulsar/pull/8144)
-- [Broker] Fix error code returned to client when service unit is not ready [8147](https://github.com/apache/pulsar/pull/8147)
-- [Broker] Skip intercepting multipart requests [8156](https://github.com/apache/pulsar/pull/8156)
-- [Broker] Enable intercept filters only when interceptors are configured [8157](https://github.com/apache/pulsar/pull/8157)
-- [Broker] Clean inactive non-persistent subscriptions [8166](https://github.com/apache/pulsar/pull/8166)
-- [Broker] Add a new state for namespace-level TTL [8178](https://github.com/apache/pulsar/pull/8178)
-- [Broker] Fix peek messages failed with subscriptionName not exist [8182](https://github.com/apache/pulsar/pull/8182)
-- [Broker] Fix pulsar service close exception [8197](https://github.com/apache/pulsar/pull/8197)
-- [Broker] Use ThreadPoolExecutor instead of EventLoop [8208](https://github.com/apache/pulsar/pull/8208)
-- [Broker] Close ZK connections at end of metadata setup [8228](https://github.com/apache/pulsar/pull/8228)
-- [Broker] Delete associated ledgers before deleting cluster metadata [8244](https://github.com/apache/pulsar/pull/8244)
-- [Broker] Fix stuck lookup operations when the broker is starting up [8273](https://github.com/apache/pulsar/pull/8273)
-- [Broker] Fix Broker enters an infinite loop in ManagedLedgerImpl.asyncReadEntries [8284](https://github.com/apache/pulsar/pull/8284)
-- [Broker] Fix message TTL on Key_Shared subscription and Fix ordering issue when replay messages [8292](https://github.com/apache/pulsar/pull/8292)
-- [Broker] Fix race condition in updating readPosition in ManagedCursorImpl [8299](https://github.com/apache/pulsar/pull/8299)
-- [Broker] Refresh ZooKeeper-data cache in background to avoid deadlock and blocking IO on ZK thread [8304](https://github.com/apache/pulsar/pull/8304)
-- [Broker] Upgrade hdfs2 version to 2.8.5 [8319](https://github.com/apache/pulsar/pull/8319)
-- [Broker] Upgrade solr version to 8.6.3 [8328](https://github.com/apache/pulsar/pull/8328)
-- [Broker] Fix deadlock that occurred during topic ownership check [8406](https://github.com/apache/pulsar/pull/8406)
-
-#### Proxy
-
-- [Proxy] Add advertisedAddress config field to ProxyConfiguration [7542](https://github.com/apache/pulsar/pull/7542)
-- [Proxy] Fix deadlock in pulsar proxy [7690](https://github.com/apache/pulsar/pull/7690)
-- [Proxy] Handle NPE while updating proxy stats [7766](https://github.com/apache/pulsar/pull/7766)
-- [Proxy] Fix the null exception when starting the proxy service [8019](https://github.com/apache/pulsar/pull/8019)
-- [Proxy] Add proxy plugin interface to support user defined additional servlet [8067](https://github.com/apache/pulsar/pull/8067)
-
-#### Pulsar SQL
-
-- [Pulsar SQL] Upgrade Presto version to 332 [7194](https://github.com/apache/pulsar/pull/7194)
-- [Pulsar SQL] Replace com.ning.asynchttpclient with org.asynchttpclient [8099](https://github.com/apache/pulsar/pull/8099)
-
-#### Java Client
-
-- [Java Client] Support input-stream for trustStore cert [7442](https://github.com/apache/pulsar/pull/7442)
-- [Java Client] Avoid subscribing the same topic again [7823](https://github.com/apache/pulsar/pull/7823)
-- [java Client] Add autoPartitionsUpdateInterval for producer and consumer [7840](https://github.com/apache/pulsar/pull/7840)
-- [Java Client] Avoid resolving address for sni-host + thread-safe connection creation [8062](https://github.com/apache/pulsar/pull/8062)
-- [Java Client] Websocket interface decode URL encoding [8072](https://github.com/apache/pulsar/pull/8072)
-- [Java Client] Always use SNI for TLS enabled Pulsar Java broker client [8117](https://github.com/apache/pulsar/pull/8117)
-- [Java Client] Improve timeout handling in ClientCnx to cover all remaining request types (GetLastMessageId, GetTopics, GetSchema, GetOrCreateSchema) [8149](https://github.com/apache/pulsar/pull/8149)
-- [Java Client] Fix ConsumerImpl memory leaks [8160](https://github.com/apache/pulsar/pull/8160)
-- [Java Client] Fix issue where paused consumer receives new message when reconnecting [8165](https://github.com/apache/pulsar/pull/8165)
-- [Java Client] Improve refactored client connection code [8177](https://github.com/apache/pulsar/pull/8177)
-- [Java Client] Add log level configuration in pulsar-client [8195](https://github.com/apache/pulsar/pull/8195)
-- [Java Client] Remove unnecessary locks [8207](https://github.com/apache/pulsar/pull/8207)
-- [Java Client] Fix AutoUpdatePartitionsInterval setting problem [8227](https://github.com/apache/pulsar/pull/8227)
-- [Java Client] Add read position when joining in the consumer stats [8274](https://github.com/apache/pulsar/pull/8274)
-- [Java Client] Support reset cursor to a batch index of the batching message [8285](https://github.com/apache/pulsar/pull/8285)
-- [Java Client] Support exclude the message when reset cursor by message ID [8306](https://github.com/apache/pulsar/pull/8306)
-- [Java Client] Increasing timeout for pulsar client io threads to shutdown [8316](https://github.com/apache/pulsar/pull/8316)
-- [Java Client] Support cancelling message & batch futures returned from Reader & Consumer [8326](https://github.com/apache/pulsar/pull/8326)
-- [Java Client] Disable batch receive timer for Readers [8381](https://github.com/apache/pulsar/pull/8381)
-- [Java Client] Fix pause does not work for new created consumer [8387](https://github.com/apache/pulsar/pull/8387)
-
-#### CPP Client
-
-- [CPP Client] Wait for all seek operations completed [7216](https://github.com/apache/pulsar/pull/7216)
-- [CPP Client] Ensure parallel invocations of MultiTopicsConsumerImpl::subscribeAsync with the same topic name do not produce an error. [7691](https://github.com/apache/pulsar/pull/7691)
-- [CPP Client] Throw std::exception types [7798](https://github.com/apache/pulsar/pull/7798)
-- [CPP Client] Make clear() thread-safe [7862](https://github.com/apache/pulsar/pull/7862)
-- [CPP Client] Support key based batching [7996](https://github.com/apache/pulsar/pull/7996)
-- [CPP Client] The token endpoint should get from the well-known configuration [8006](https://github.com/apache/pulsar/pull/8006)
-- [CPP Client] Add Snappy library to Docker images for building C++ packages [8086](https://github.com/apache/pulsar/pull/8086)
-- [CPP Client] Add epoch for C++ client HandleBase to handle create producer timeout [8191](https://github.com/apache/pulsar/pull/8191)
-- [CPP Client] Fix some pending requests may never complete when broker's down [8232](https://github.com/apache/pulsar/pull/8232)
-- [CPP Client] Client is allocating buffer bigger than needed [8283](https://github.com/apache/pulsar/pull/8283)
-- [CPP Client] Client back-pressure is done on batches rather than number of messages [8331](https://github.com/apache/pulsar/pull/8331)
-- [CPP Client] Fix message id error when subscribing a single partition [8341](https://github.com/apache/pulsar/pull/8341)
-
-#### Python Client
-
-- [Python Client] Add python schema field default value [8122](https://github.com/apache/pulsar/pull/8122)
-- [Python Client] Expose schema version (of writerSchema) in Message [8173](https://github.com/apache/pulsar/pull/8173)
-
-#### Pulsar Functions
-
-- [Pulsar Functions] During Function update, cleanup should only happen for temp files that were generated [7201](https://github.com/apache/pulsar/pull/7201)
-- [Pulsar Functions] Have metadata tailer use its own thread for processing [7211](https://github.com/apache/pulsar/pull/7211)
-- [Pulsar Functions] Allow kubernetes runtime to customize function instance class path [7844](https://github.com/apache/pulsar/pull/7844)
-- [Pulsar Functions] SinkRecord adds an overridden method [8038](https://github.com/apache/pulsar/pull/8038)
-- [Pulsar Functions] Set dryrun of KubernetesRuntime is null [8064](https://github.com/apache/pulsar/pull/8064)
-- [Pulsar Functions] Allow disabling forwarding source message properties [8158](https://github.com/apache/pulsar/pull/8158)
-- [Pulsar Functions] Missed dryRun on maintenance of secrets [8286](https://github.com/apache/pulsar/pull/8286)
-
-#### Pulsar Perf
-
-- [Pulsar Perf] Support setting message key [7989](https://github.com/apache/pulsar/pull/7989)
-- [Pulsar Perf] Make pulsar-perf ioThread number configurable [8090](https://github.com/apache/pulsar/pull/8090)
-
-#### Pulsar Admin
-
-- [Pulsar Admin] Support initial namespace of the cluster without startup the broker [7434](https://github.com/apache/pulsar/pull/7434)
-- [Pulsar Admin] Fix some params on consumer broken by #4400 (regex, initialSouscriptionPosition) [7795](https://github.com/apache/pulsar/pull/7795)
-- [Pulsar Admin] Return more informative error message when trying to create subscription on non-persistent through Rest API or pulsar-admin CLI [7831](https://github.com/apache/pulsar/pull/7831)
-- [Pulsar Admin] Add cli command to get last message Id [8082](https://github.com/apache/pulsar/pull/8082)
-- [Pulsar Admin] Support delete all data associated with a cluster [8133](https://github.com/apache/pulsar/pull/8133)
-- [Pulsar Admin] Support delete schema ledgers when delete topics [8167](https://github.com/apache/pulsar/pull/8167)
-- [Pulsar Admin] Add command to delete a cluster's metadata from ZK [8169](https://github.com/apache/pulsar/pull/8169)
-- [Pulsar Admin] Support reset cursor to a batch index for Pulsar Admin [8329](https://github.com/apache/pulsar/pull/8329)
-
-#### Tiered Storage
-
-- [Tiered Storage] Refactored JCloud Tiered Storage [6335](https://github.com/apache/pulsar/pull/6335)
-- [Tiered Storage] Remove duplicate updates [8198](https://github.com/apache/pulsar/pull/8198)
-- [Tiered Storage] Make the field name in `OffloadPolicies` match with config file [8310](https://github.com/apache/pulsar/pull/8310)
-
-### 2.6.1
-
-#### 2020-08-21
-
-The following lists fixes and enhancements in 2.6.1 release.
-
-#### Broker
-
-- [Broker] Limit batch size to the minimum of the `maxNumberOfMessages` and `maxSizeOfMessages` [#6865](https://github.com/apache/pulsar/pull/6865)
-- [Broker] Fix hash range conflict issue in Key_Shared with sticky hash range [#7231](https://github.com/apache/pulsar/pull/7231)
-- [Broker] Fix the issue that get lookup permission error [#7234](https://github.com/apache/pulsar/pull/7234)
-- [Broker] Update Jetty to version 9.4.29 [#7235](https://github.com/apache/pulsar/pull/7235)
-- [Broker] Fix readers backlog stats after data is skipped [#7236](https://github.com/apache/pulsar/pull/7236)
-- [Broker] Fix the regression in `isSupperUser` [#7241](https://github.com/apache/pulsar/pull/7241)
-- [Broker] Avoid introducing null read position for the managed cursor [#7264](https://github.com/apache/pulsar/pull/7264)
-- [Broker] Fix permission operation check on setRetention admin operation [#7281](https://github.com/apache/pulsar/pull/7281)
-- [Broker] Fix error in creation of non-durable cursor [#7355](https://github.com/apache/pulsar/pull/7355)
-- [Broker] Fix bug related to managedLedger properties [#7357](https://github.com/apache/pulsar/pull/7357)
-- [Broker] Add tenant name check in list namespaces function [#7369](https://github.com/apache/pulsar/pull/7369)
-- [Broker] Avoid the NPE occurs in method `ManagedLedgerImpl.isOffloadedNeedsDelete` [#7389](https://github.com/apache/pulsar/pull/7389)
-- [Broker] Fix producer stuck issue due to NPE thrown when creating a new ledger [#7401](https://github.com/apache/pulsar/pull/7401)
-- [Broker] Avoid NPEs at ledger creation when DNS failures happen [#7403](https://github.com/apache/pulsar/pull/7403)
-- [Broker] Support decompression payload if needed in KeyShared subscription [#7416](https://github.com/apache/pulsar/pull/7416)
-- [Broker] Fix update-cluster cli updates proxy-url [#7422](https://github.com/apache/pulsar/pull/7422)
-- [Broker] Handle `NotAllowed Exception` at the client side [#7430](https://github.com/apache/pulsar/pull/7430)
-- [Broker] Shade jclouds to avoid Gson conflict [#7435](https://github.com/apache/pulsar/pull/7435)
-- [Broker] Consumer is registered on dispatcher even if hash range conflicts on Key_Shared subscription [#7444](https://github.com/apache/pulsar/pull/7444)
-- [Broker] Add pulsar-client-messagecrypto-bc into pulsar-client dependency to avoid method not found [#7447](https://github.com/apache/pulsar/pull/7447)
-- [Broker] Fix update partitions error for non-persistent topic [#7459](https://github.com/apache/pulsar/pull/7459)
-- [Broker] Use CGroup CPU usage when present [#7475](https://github.com/apache/pulsar/pull/7475)
-- [Broker] Fix ArrayIndexOutOfBoundsException when dispatch messages to consumer [#7483](https://github.com/apache/pulsar/pull/7483)
-- [Broker] Get last entry is trying to read entry -1 [#7495](https://github.com/apache/pulsar/pull/7495)
-- [Broker] Fix timeout opening managed ledger operation [#7506](https://github.com/apache/pulsar/pull/7506)
-- [Broker] Fixes the exception that occurred when the geo-replication policy is updated [#7514](https://github.com/apache/pulsar/pull/7514)
-- [Broker] Update Jackson to version 2.11.1 and ensure all dependencies are pinned [#7519](https://github.com/apache/pulsar/pull/7519)
-- [Broker] Fix protobuf generation on handling repeated long number [#7540](https://github.com/apache/pulsar/pull/7540)
-- [Broker] Add more logging to the auth operations on failure [#7567](https://github.com/apache/pulsar/pull/7567)
-- [Broker] Use Consume/Produce/Lookup interfaces for specific operations in allowTopicOperation [#7587](https://github.com/apache/pulsar/pull/7587)
-- [Broker] Support configuring `DeleteInactiveTopic` setting in namespace policy [#7598](https://github.com/apache/pulsar/pull/7598)
-- [Broker] Fix NPE when using advertisedListeners [#7620](https://github.com/apache/pulsar/pull/7620)
-- [Broker] Fix the issue that deduplication cursor can not be deleted after disabling message deduplication [#7656](https://github.com/apache/pulsar/pull/7656)
-- [Broker] Add missing AuthenticationDataSource to canConsumeAsync method call [#7694](https://github.com/apache/pulsar/pull/7694)
-- [Broker] Close the previous reader of the health check topic [#7724](https://github.com/apache/pulsar/pull/7724)
-- [Broker] Change some WebApplicationException log level to debug [#7725](https://github.com/apache/pulsar/pull/7725)
-- [Broker] Replay delayed messages in order [#7731](https://github.com/apache/pulsar/pull/7731)
-- [Broker] Fix the wrong returned URL for lookup when specify advertised listener [#7737](https://github.com/apache/pulsar/pull/7737)
-- [Broker] Fix topic getting recreated immediately after deletion [#7524](https://github.com/apache/pulsar/pull/7524)
-- [Broker] Set default root log level to debug [#7789](https://github.com/apache/pulsar/pull/7789)
-- [Broker] Fix producer stucks on creating ledger timeout [#7319](https://github.com/apache/pulsar/pull/7319)
-- [Broker] AllowTopicOperationAsync should check the original role is super user [#7788](https://github.com/apache/pulsar/pull/7788)
-
-#### Zookeeper
-
-- [Zookeeper] Use hostname for bookie rackawareness mapping [#7361](https://github.com/apache/pulsar/pull/7361)
-
-#### Pulsar SQL
-
-- [Pulsar SQL] Make Pulsar SQL get correct offload configurations [#7701](https://github.com/apache/pulsar/pull/7701)
-
-#### Pulsar Schema
-- [Schema] Fix the error that occurs when getting schemaName by partitioned topic name [#7708](https://github.com/apache/pulsar/pull/7708)
-
-#### Java Client
-
-- [Java Client] Fix the issue that the HTTP header used in Athenz authentication can not be renamed [#7311](https://github.com/apache/pulsar/pull/7311)
-- [Java Client] Add more detail information of retry errors [#7341](https://github.com/apache/pulsar/pull/7341)
-- [Java Client] Check NPE when a tombstone (null value) is produced. [#7408](https://github.com/apache/pulsar/pull/7408)
-- [Java Client] Fix batch ackset recycled multiple times. [#7409](https://github.com/apache/pulsar/pull/7409)
-- [Java Client] Support Oauth2 authentication [#7420](https://github.com/apache/pulsar/pull/7420)
-- [Java Client] Ensure the create subscription can be completed when the operation timeout happens [#7522](https://github.com/apache/pulsar/pull/7522)
-- [Java Client] Fix race condition on the close consumer while reconnecting to the broker. [#7589](https://github.com/apache/pulsar/pull/7589)
-- [Java Client] Fix validation never return false [#7593](https://github.com/apache/pulsar/pull/7593)
-- [Java Client] Make OAuth2 auth plugin to use AsyncHttpClient [#7615](https://github.com/apache/pulsar/pull/7615)
-- [Java Client] Support to set listener name for client CLI [#7621](https://github.com/apache/pulsar/pull/7621)
-- [Java Client] Fix batch index filter issue in Consumer [#7654](https://github.com/apache/pulsar/pull/7654)
-- [Java Client] Fix the backward compatibility issues with batch index acknowledgment. [#7655](https://github.com/apache/pulsar/pull/7655)
-- [Java Client] Fix the issue that batchReceiveAsync is not completed exceptionally when closing consumer [#7661](https://github.com/apache/pulsar/pull/7661)
-- [Java Client] Fix producer stats recorder time unit error [#7670](https://github.com/apache/pulsar/pull/7670)
-- [Java Client] Fix shutdown AsyncHttpConnector.delayer [#7687](https://github.com/apache/pulsar/pull/7687)
-
-#### CPP Client
-
-- [CPP Client] Fix partition index error in closing callback [#7282](https://github.com/apache/pulsar/pull/7282)
-- [CPP Client] Reduce log level for ack-grouping tracker [#7373](https://github.com/apache/pulsar/pull/7373)
-- [CPP Client] Support Oauth2 authentication [#7467](https://github.com/apache/pulsar/pull/7467)
-- [CPP Client] Fix segment crashes that caused by race condition of timer in cpp client [#7572](https://github.com/apache/pulsar/pull/7572)
-- [CPP Client] Fix multitopic consumer segfault on connect error [#7588](https://github.com/apache/pulsar/pull/7588)
-- [CPP Client] Add support to read credentials from file [#7606](https://github.com/apache/pulsar/pull/7606)
-- [CPP Client] Fix the issuer_url parsing failure in oauth2 [#7791](https://github.com/apache/pulsar/pull/7791)
-- [CPP Client] Fix reference leak when reader create [#7793](https://github.com/apache/pulsar/pull/7793)
-
-#### Pulsar Functions
-
-- [Pulsar Function] Use fully qualified hostname as default to advertise worker [#7360](https://github.com/apache/pulsar/pull/7360)
-- [Pulsar Function] Fix the function BC issue introduced in release 2.6.0 [#7528](https://github.com/apache/pulsar/pull/7528)
-- [Pulsar Function] Improve security setting of Pulsar Functions [#7578](https://github.com/apache/pulsar/pull/7578)
-- [Pulsar Function] Differentiate authorization between source/sink/function operations [#7466](https://github.com/apache/pulsar/pull/7466)
-
-#### Go Function
-
-- [Go Function] Fix Go instance config port [#7322](https://github.com/apache/pulsar/pull/7322)
-- [Go Function] Remove timestamp from metrics [#7539](https://github.com/apache/pulsar/pull/7539)
-
-#### Pulsar Perf
-
-- [Pulsar Perf] Supports `tlsAllowInsecureConnection` in pulsar-perf produce/consume/read [#7300](https://github.com/apache/pulsar/pull/7300)
-
-### 2.6.0
-
-#### 2020-06-17
-
-#### Features
-
-##### PIPs
-
-* [PIP-37] Large message size support [#4400](https://github.com/apache/pulsar/pull/4400)
-* [PIP-39] Namespace change events (System Topic) [#4955](https://github.com/apache/pulsar/pull/4955)
-* [PIP-45] Switch ManagedLedger to use MetadataStore interface [#5358](https://github.com/apache/pulsar/pull/5358)
-* [PIP 53] Contribute [DotPulsar](https://github.com/apache/pulsar-dotpulsar) to Apache Pulsar
-* [PIP-54] Support acknowledgment at batch index level [#6052](https://github.com/apache/pulsar/pull/6052)
-* [PIP-58] Support consumers set custom message retry delay [#6449](https://github.com/apache/pulsar/pull/6449)
-* [PIP-60] Support SNI routing to support various proxy-server [#6566](https://github.com/apache/pulsar/pull/6566)
-* [PIP-61] Advertise multiple addresses [#6903](https://github.com/apache/pulsar/pull/6903)
-* [PIP-65] Adapting Pulsar IO Sources to support Batch Sources [#7090](https://github.com/apache/pulsar/pull/7090)
-
-##### Broker
-
-* [Broker] Add threshold shedder strategy and metrics exporter for loadbalancer [#6772](https://github.com/apache/pulsar/pull/6772)
-* [Broker] Add consistent hashing in the Key_Shared distribution [#6791](https://github.com/apache/pulsar/pull/6791)
-* [Broker] Fixed ordering issue in KeyShared subscription dispatcher when adding consumer [#7106](https://github.com/apache/pulsar/pull/7106) [#7108](https://github.com/apache/pulsar/pull/7108) [#7188](https://github.com/apache/pulsar/pull/7188)
-* [Broker] Add support for key hash range reading in Key_Shared subscription [#5928](https://github.com/apache/pulsar/pull/5928)
-* [Broker] Allow for schema reader and writer registration on SchemaDefinition [#6905](https://github.com/apache/pulsar/pull/6905)
-* [Broker] Support use null key and null value in KeyValue Schema [#7139](https://github.com/apache/pulsar/pull/7139)
-* [Broker] Support multiple pulsar clusters to use the same bk cluster [#5985](https://github.com/apache/pulsar/pull/5985)
-* [Broker] Add a flag to skip broker shutdown on transient OOM [#6634](https://github.com/apache/pulsar/pull/6634)
-* [Broker] Make zookeeper cache expiry time configurable [#6668](https://github.com/apache/pulsar/pull/6668)
-* [Broker] Check replicator periodically to avoid issue due to zookeeper missing watch [#6674](https://github.com/apache/pulsar/pull/6674)
-* [Broker] Expose managedLedgerCache, managedLedger, loadBalance metrics to Prometheus [#6705](https://github.com/apache/pulsar/pull/6705)
-* [Broker] Optimize consumer fetch messages in case of batch message [#6719](https://github.com/apache/pulsar/pull/6719)
-* [Broker] Add configuration to limit max partitions for a partitioned topic [#6794](https://github.com/apache/pulsar/pull/6794)
-* [Broker] Change default FlushEntryLogBytes to 256MB to improve bookie io throughput [#6915](https://github.com/apache/pulsar/pull/6915)
-* [Broker] Introduce precise topic publish rate limiting [#7078](https://github.com/apache/pulsar/pull/7078)
-* [Broker] Expose new entries check delay in the broker.conf [7154](https://github.com/apache/pulsar/pull/7154)
-* [Broker] Add broker interceptor for intercepting all Pulsar command and REST API requests [#7143](https://github.com/apache/pulsar/pull/7143)
-* [Broker] Only close active consumer for Failover subscription when seek() [#7141](https://github.com/apache/pulsar/pull/7141)
-* [Broker] Allow to delete topics that are failing to recover [#7131](https://github.com/apache/pulsar/pull/7131)
-* [Broker] Support set netty max frame size in bookkeeper.conf [#7116](https://github.com/apache/pulsar/pull/7116)
-* [Broker] Trigger rollover when meeting maxLedgerRolloverTimeMinutes [#7111](https://github.com/apache/pulsar/pull/7111)
-* [Broker] Cap the dispatcher batch size in bytes to fixed max [#7097](https://github.com/apache/pulsar/pull/7097)
-* [Broker] Support specify managedLedgerMaxSizePerLedgerMbytes in broker.conf [#7085](https://github.com/apache/pulsar/pull/7085)
-* [Broker] Allow to grant permissions when the authorization is disabled [#7074](https://github.com/apache/pulsar/pull/7074)
-* [Broker] Add messages and bytes counter stats to broker-stats/topics [#7045](https://github.com/apache/pulsar/pull/7045)
-* [Broker] Expose new entries check delay in the broker.conf [#7154](https://github.com/apache/pulsar/pull/7154)
-
-##### Function
-
-* [Function] Built-in functions support [#6895](https://github.com/apache/pulsar/pull/6895)
-* [Function] Add Go Function heartbeat (and gRPC service) for production usage [#6031](https://github.com/apache/pulsar/pull/6031)
-* [Function] Add custom property option to functions [#6348](https://github.com/apache/pulsar/pull/6348)
-* [Function] Separate TLS configuration of function worker and broker [#6602](https://github.com/apache/pulsar/pull/6602)
-* [Function] Added ability to build consumers in functions and sources [#6954](https://github.com/apache/pulsar/pull/6954)
-* [Function] Support DLQ on sources and sinks [#7032](https://github.com/apache/pulsar/pull/7032)
-
-##### Pulsar SQL
-
-* [SQL] KeyValue schema support [#6325](https://github.com/apache/pulsar/pull/6325)
-* [SQL] Multiple version schema support [#4847](https://github.com/apache/pulsar/pull/4847)
-* [SQL] Fix presto SQL does not start metrics service before queue execute [#7030](https://github.com/apache/pulsar/pull/7030)
-
-##### Pulsar IO
-
-* Added ability for sources to publish messages on their own [#6941](https://github.com/apache/pulsar/pull/6941)
-* [RabbitMQ] Allow routing key per message to RabbitMQ sink connector [#5890](https://github.com/apache/pulsar/pull/5890)
-* [RabbitMQ] Add passive config options [#6679](https://github.com/apache/pulsar/pull/6679)
-* [debezium] Upgrade from v0.10.0-Final to v1.0.0-Final [#5972](https://github.com/apache/pulsar/pull/5972)
-* [debezium] Support avro schema for debezium connector [#6034](https://github.com/apache/pulsar/pull/6034)
-* [influxdb2] Add support for influxdb2 in pulsar-influxdb-sink [#6601](https://github.com/apache/pulsar/pull/6601)
-* [jdbc] Add jdbc sinks: postgres, mariadb, clickhouse [#6835](https://github.com/apache/pulsar/pull/6835)
-
-##### Pulsar Proxy
-
-* [Proxy] Add REST API to get connection and topic stats [#6473](https://github.com/apache/pulsar/pull/6473)
-* [Proxy] Add advertised address option [#6942](https://github.com/apache/pulsar/pull/6942)
-* [Proxy] Add proxyLogLevel into config [#6948](https://github.com/apache/pulsar/pull/6948)
-
-##### Clients
-
-* [Java Client] Use pure-java Air-Compressor instead of JNI based libraries [#5390](https://github.com/apache/pulsar/pull/5390)
-* [Java Client] Change the time unit of patternAutoDiscoveryPeriod to seconds [#5950](https://github.com/apache/pulsar/pull/5950)
-* [Java Client] Support waiting for inflight messages while closing producer [#6648](https://github.com/apache/pulsar/pull/6648)
-* [Java Client] Add support to load TLS certs/key dynamically from input stream [#6760](https://github.com/apache/pulsar/pull/6760)
-* [Java Client] Support return sequence ID when throwing Exception for async send message [#6825](https://github.com/apache/pulsar/pull/6825)
-* [Java Client] Change the default value of maxLookupRedirects of Java client to 20 [#7126](https://github.com/apache/pulsar/pull/7126)
-* [Java Client] Limit the number of times lookup requests are redirected [#7096](https://github.com/apache/pulsar/pull/7096)
-* [CPP Client] Support seek by time on partitioned topic [#7198](https://github.com/apache/pulsar/pull/7198)
-* [CPP Client] Refresh authentication credentials [#7070](https://github.com/apache/pulsar/pull/7070)
-* [CPP Client] Fix Result can't be serialized to string inside the library [#7034](https://github.com/apache/pulsar/pull/7034)
-* [CPP Client] Support zstd and Snappy compression to C API [#7014](https://github.com/apache/pulsar/pull/7014)
-* [Python Client] Add deliver_at and deliver_after for the producer [#6737](https://github.com/apache/pulsar/pull/6737)
-
-##### Admin
-
-* [Admin] Support delete inactive topic when subscriptions caught up [#6077](https://github.com/apache/pulsar/pull/6077)
-* [Admin] Add configuration to disable auto-creation of subscriptions [#6456](https://github.com/apache/pulsar/pull/6456)
-* [Admin] Add maxUnackedMessagesPerSubscription and maxUnackedMessagesPerConsumer on namespaces policies [#5936](https://github.com/apache/pulsar/pull/5936)
-* [Admin] Support get a message by message ID in pulsar-admin [#6331](https://github.com/apache/pulsar/pull/6331)
-* [Admin] Support delete subscription forcefully [#6383](https://github.com/apache/pulsar/pull/6383)
-* [Admin] Add subscribe initial position for consumer CLI [#6442](https://github.com/apache/pulsar/pull/6442)
-* [Admin] Support to get managed ledger info of a partitioned topic [#6532](https://github.com/apache/pulsar/pull/6532)
-* [Admin] Support compact all partitions of a partitioned topic [#6537](https://github.com/apache/pulsar/pull/6537)
-* [Admin] Support multi-hosts in PulsarAdmin [#6547](https://github.com/apache/pulsar/pull/6547)
-* [Admin] Support to get internal stats for a partitioned topic [#6624](https://github.com/apache/pulsar/pull/6624)
-* [Admin] Support enable or disable subscription auto-creation at namespace level [#6637](https://github.com/apache/pulsar/pull/6637)
-* [Admin] Enable to set the subscription expiration time for each namespace [#6851](https://github.com/apache/pulsar/pull/6851)
-
-#### Fixes
-
-* [Broker] Fixed increasing number of partitions with attached readers [#7077](https://github.com/apache/pulsar/pull/7077)
-* [Broker] Make ZkBookieRackAffinityMapping work as expected [#6917](https://github.com/apache/pulsar/pull/6917)
-* [Broker] Fix backlog and backlog size stats keeps growing [#7082](https://github.com/apache/pulsar/pull/7082)
-* [Java Client] Fix connection leak [#6524](https://github.com/apache/pulsar/pull/6524)
-* [Java Client] Fix message id compare between MessageId and BatchMessageId [#6621](https://github.com/apache/pulsar/pull/6621)
-* [Java Client] Fix memory leak when create producer with not exsits topic [#7120](https://github.com/apache/pulsar/pull/7120) [#7124](https://github.com/apache/pulsar/pull/7124)
-* [Java Client] Fix duplicated messages sent to dead letter topic [#7021](https://github.com/apache/pulsar/pull/7021)
-* [CPP Client] Fix deadlock of consumer for topics auto discovery [#7206](https://github.com/apache/pulsar/pull/7206)
-* [Managed Ledger] Fix NPE on opening non-durable cursors on an empty managed ledger [#7133](https://github.com/apache/pulsar/pull/7133)
-* [Websocket] Fix incorrect topic URL parse [#6630](https://github.com/apache/pulsar/pull/6630)
-* [Pulsar SQL] Fix problem with multiple zookeeper address [#6947](https://github.com/apache/pulsar/pull/6947)
-* [Docker] Do not apply env values to pulsar_env.sh and bkenv.sh implicitly [6579](https://github.com/apache/pulsar/pull/6579)
-
-### 2.5.2
-
-#### 2020-05-19
-
-#### Fixes and Enhancements
-
-##### Broker
-* [Broker] Implement AutoTopicCreation by namespace level override [#6471](https://github.com/apache/pulsar/pull/6471)
-* [Broker] Add custom deletionLag and threshold for offload policies per namespace [#6422](https://github.com/apache/pulsar/pull/6422)
-* [Broker] Invalidate managed ledgers zookeeper cache instead of reloading on watcher triggered [#6659](https://github.com/apache/pulsar/pull/6659)
-* [Broker] Retention policy should be respected when there is no traffic [#6676](https://github.com/apache/pulsar/pull/6676)
-* [Broker] Fixed double delete on a namespace [#6713](https://github.com/apache/pulsar/pull/6713)
-* [Broker] fix get batch message from http response, only get the first message[#6715](https://github.com/apache/pulsar/pull/6715)
-* [Broker] Fix Deadlock by Consumer and Reader[#6728](https://github.com/apache/pulsar/pull/6728)
-* [Broker] avoid backpressure by skipping dispatching if consumer channel is not writable [#6740](https://github.com/apache/pulsar/pull/6740)
-* [Broker] fix when producing encrypted messages, MessageMetadata objects are not released after they are created. [#6745](https://github.com/apache/pulsar/pull/6745)
-* [Broker] Bump netty version to 4.1.48.Final [#6746](https://github.com/apache/pulsar/pull/6746)
-* [Broker] Increase timeout for loading topics [#6750](https://github.com/apache/pulsar/pull/6750)
-* [Broker] Fix wrong cursor state for cursor without consumer [#6766](https://github.com/apache/pulsar/pull/6766)
-* [Broker] change nondurable cursor to active to improve performance [#6769](https://github.com/apache/pulsar/pull/6769)
-* [Broker] register loadbalance znode should attempt to wait until session expired [#6788](https://github.com/apache/pulsar/pull/6788)
-* [Broker] Fix some empty message related problems in the compacted topic. [#6795](https://github.com/apache/pulsar/pull/6795)
-* [Broker] Avoid creating partitioned topic for partition name [#6846](https://github.com/apache/pulsar/pull/6846)
-* [Broker] Add Tls with keystore type config support [#6853](https://github.com/apache/pulsar/pull/6853)
-* [Broker] fix consumer stuck when batchReceivePolicy maxNumMessages > maxReceiverQueueSize [#6862](https://github.com/apache/pulsar/pull/6862)
-* [Broker] use originalAuthMethod on originalAuthChecker in Proxy Authentication [#6870](https://github.com/apache/pulsar/pull/6870)
-* [Broker] Close producer when the topic does not exists. [#6879](https://github.com/apache/pulsar/pull/6879)
-* [Broker] Handle all exceptions from `topic.addProducer` [#6881](https://github.com/apache/pulsar/pull/6881)
-* [Broker] fix topicPublishRateLimiter not effective after restart broker [#6893](https://github.com/apache/pulsar/pull/6893)
-* [Broker] Expose pulsar_out_bytes_total and pulsar_out_messages_total for namespace/subscription/consumer. [#6918](https://github.com/apache/pulsar/pull/6918)
-* [Broker] Policy ttlDurationDefaultInSeconds not applying [#6920](https://github.com/apache/pulsar/pull/6920)
-* [Broker] Fix pulsar admin thread number explode bug. [#6940](https://github.com/apache/pulsar/pull/6940)
-
-##### Pulsar Schema
-
-* [Schema] Fix long field parse in GenricJsonRecord [#6622](https://github.com/apache/pulsar/pull/6622)
-* [Schema] Fix the leak of cursor reset if message encode fails in Avro schema. [#6695](https://github.com/apache/pulsar/pull/6695)
-* [Schema] fix Get schema by version can get the deleted schema info #6754 [#6754](https://github.com/apache/pulsar/pull/6754)
-* [Schema] Fix serialization of enums with json/avro schemas in python [#6808](https://github.com/apache/pulsar/pull/6808)
-* [Schema] Pulsar SQL Support Avro Schema `ByteBuffer` Type [#6925](https://github.com/apache/pulsar/pull/6925)
-
-##### CPP Client
-* [CPP Client] Auto update topic partitions [#6732](https://github.com/apache/pulsar/pull/6732)
-* [CPP Client] Subscription InitialPosition is not correctly set on regex consumers. [#6810](https://github.com/apache/pulsar/pull/6810)
-* [CPP Client] Fix message id is always the default value in send callback [#6812](https://github.com/apache/pulsar/pull/6812)
-* [CPP Client] Fix message id error if messages were sent to a partitioned topic [#6938](https://github.com/apache/pulsar/pull/6938)
-
-##### Python Client
-* [Python Client] Fix Python function protobuf missing field[#6641](https://github.com/apache/pulsar/pull/6641)
-
-##### Pulsar Functions
-* [Functions] Support function with format: Function<I, CompletableFuture<O>>[#6684](https://github.com/apache/pulsar/pull/6684)
-* [Functions] Function endpoint admin/v3/functions/{tenant}/{namespace} always returns 404 [#6767](https://github.com/apache/pulsar/pull/6767)
-* [Functions] Ensure that all dangling consumers are cleaned up during failures [#6778](https://github.com/apache/pulsar/pull/6778)
-* [Functions] Fix localrunner netty dependency issue [#6779](https://github.com/apache/pulsar/pull/6779)
-* [Functions] Fix SerDe validation of function's update [#6888](https://github.com/apache/pulsar/pull/6888)
-
-##### Tiered Storage
-* [Tiered Storage] Extract common SerDe method in tiered storage to managed-ledger module [#6533](https://github.com/apache/pulsar/pull/6533)
-* [Tiered Storage] Make SchemaStorage accessible in Offloader [#6567](https://github.com/apache/pulsar/pull/6567)
-* [Tiered Storage] Avoid prefetch too much data causing OutOfMemory, when offloading data to HDFS [#6717](https://github.com/apache/pulsar/pull/6717)
-
-##### Pulsar IO
-* [IO] JDBC sink does not handle null in schema [#6848](https://github.com/apache/pulsar/pull/6848)
-
-
-### 2.5.1
-
-#### 2020-04-20
-
-#### Features
-
-* PIP-55: Refresh Authentication Credentials [#6074](https://github.com/apache/pulsar/pull/6074)
-* Namespace level support offloader [#6183](https://github.com/apache/pulsar/pull/6183)
-* Upgrade Avro to 1.9.1 [#5938](https://github.com/apache/pulsar/pull/5938)
- * *Avro 1.9.1 enables the JSR310 datetimes by default, which might introduce some regression problems if users use generated source code by Avro compiler 1.8.x and contains datetimes fields. It's better to use Avro 1.9.x compiler to recompile.*
-* Support `unload` all partitions of a partitioned topic [#6187](https://github.com/apache/pulsar/pull/6187)
-* Supports evenly distribute topics count when splits bundle [#6241](https://github.com/apache/pulsar/pull/6241)
-* KeyValue schema support for pulsar sql [#6325](https://github.com/apache/pulsar/pull/6325)
-* Bump netty version to 4.1.45.Final [#6424](https://github.com/apache/pulsar/pull/6424)
-* Support BouncyCastle FIPS provider [#6588](https://github.com/apache/pulsar/pull/6588)
-* Improve Key_Shared subscription message dispatching performance. [#6647](https://github.com/apache/pulsar/pull/6647)
-* Add JSR310 logical type conversion. [#6704](https://github.com/apache/pulsar/pull/6704)
-* Introduce maxMessagePublishBufferSizeInMB configuration to avoid broker OOM [#6178](https://github.com/apache/pulsar/pull/6178)
-
-
-#### Fixes
-
-##### Broker
-* [Broker] Fixed NPE occurs when getting partitioned topic stats [#6060](https://github.com/apache/pulsar/pull/6060)
-* [Broker] Fixed zero queue consumer message redelivery [#6076](https://github.com/apache/pulsar/pull/6076)
-* [Broker] Fixed message redelivery for zero queue consumer while using async api to receive messages [#6090](https://github.com/apache/pulsar/pull/6090)
-* [broker] Fixed bug that backlog message that has not yet expired could be deleted due to TTL [#6211](https://github.com/apache/pulsar/pull/6211)
-* [Broker] Remove problematic semicolon from conf [#6303](https://github.com/apache/pulsar/pull/6303)
-* [Broker] Fixed broker to specify a list of bookie groups [#6349](https://github.com/apache/pulsar/pull/6349)
-* [Broker] Fixed create consumer on partitioned topic while disable topic auto creation [#5572](https://github.com/apache/pulsar/pull/5572)
-* [Broker] Fix maven broken link [#6068](https://github.com/apache/pulsar/pull/6068)
-* [Broker] Fixed java code errors reported by lgtm. [#6398](https://github.com/apache/pulsar/pull/6398)
-* [Broker] Fixed memory leak when running topic compaction. [#6485](https://github.com/apache/pulsar/pull/6485)
-* [Broker] Fixed admin getLastMessageId return batchIndex [#6511](https://github.com/apache/pulsar/pull/6511)
-* [Broker] Fixed topic with one partition cannot be updated [#6560](https://github.com/apache/pulsar/pull/6560)
-* [Broker] Fixed negative un-ack messages in consumer stats [#5929](https://github.com/apache/pulsar/pull/5929)
-* [broker] Fixed bug that tenants whose allowed clusters include global cannot be created/updated [#6275](https://github.com/apache/pulsar/pull/6275)
-* [Broker] Fixed log compaction for flow control/empty topic/last deletion [#6237](https://github.com/apache/pulsar/pull/6237)
-* [Broker] Fixed restore clusterDispatchRate policy for compatibility [#6176](https://github.com/apache/pulsar/pull/6176)
-* [Broker] Fix some async method problems at PersistentTopicsBase. [#6483](https://github.com/apache/pulsar/pull/6483)
-* [Broker] This "earlier" message should be avoided to emit when reset cursor.[#6393](https://github.com/apache/pulsar/pull/6393)
-* [Broker] Change the permission level of managing subscription from super-user to tenant admin [#6122](https://github.com/apache/pulsar/pull/6122)
-
-##### Managed Ledger
-* [Managed Ledger] Fixed consumer received duplicated delayed messages upon restart [#6404](https://github.com/apache/pulsar/pull/6404)
-
-
-##### Pulsar Proxy
-
-* [Proxy] Fixed correct name for proxy thread executor name [#6460](https://github.com/apache/pulsar/pull/6460)
-* [Proxy] Fixed logging for published messages [#6474](https://github.com/apache/pulsar/pull/6474)
-* [Proxy] Fixed proxy routing to functions worker [#6486](https://github.com/apache/pulsar/pull/6486)
-
-
-##### Zookeeper
-
-* [Zookeeper] Fixed casting in ZooKeeperCache.getDataIfPresent() [#6313](https://github.com/apache/pulsar/pull/6313)
-
-##### Pulsar Functions
-* [Function] remove future.join() from PulsarSinkEffectivelyOnceProcessor [#6361](https://github.com/apache/pulsar/pull/6361)
-
-
-##### Pulsar SQL
-* [SQL] Fixed integration Pulsar SQL test failed [#6279](https://github.com/apache/pulsar/pull/6279)
-
-##### Security
-* Fixed publish buffer limit does not take effect [#6431](https://github.com/apache/pulsar/pull/6431)
-* Fixed the bug of authenticationData is't initialized. [#6440](https://github.com/apache/pulsar/pull/6440)
-
-##### Pulsar Schema
-
-* [Schema] Fixed get schema version in HttpLookupService. [#6193](https://github.com/apache/pulsar/pull/6193)
-* [Schema] Fixed avro schema decode error `ClassCastException` in Pulsar Function [#6662](https://github.com/apache/pulsar/pull/6662)
-* [Schema] Fixed channel write error handling for send get raw schema request [#6650](https://github.com/apache/pulsar/pull/6650)
-
-##### Java client
-* [Client] Fixed available permits may be greater than 1 even though queue size is 0. [#6106](https://github.com/apache/pulsar/pull/6106)
-* [Client] Fixed broker client tls settings error [#6128](https://github.com/apache/pulsar/pull/6128)
-* [Client]Fixed hasMessageAvailable() [#6362](https://github.com/apache/pulsar/pull/6362)
-* [Client] Fixed duplicate key to send propertys [#6390](https://github.com/apache/pulsar/pull/6390)
-* [Client] fixed deadlock on send failure [#6488](https://github.com/apache/pulsar/pull/6488)
-* [Client] Fixed NPE while call getLastMessageId [#6562](https://github.com/apache/pulsar/pull/6562)
-* [Client] Fixed the max backoff configuration for lookups [#6444](https://github.com/apache/pulsar/pull/6444)
-
-
-##### C++ client
-* [C++] Fixed static linking on C++ lib on MacOS [#5581](https://github.com/apache/pulsar/pull/5581)
-* [C++] Fixed memory corruption on ExecutorService destructor [#6270](https://github.com/apache/pulsar/pull/6270)
-* [C++] Fixed handling of canceled timer events on NegativeAcksTracker [#6272](https://github.com/apache/pulsar/pull/6272)
-* [C++] Fixed for possible deadlock when closing Pulsar client [#6277](https://github.com/apache/pulsar/pull/6277)
-* [C++] Fixed Unacked Message Tracker by Using Time Partition on C++ [#6391](https://github.com/apache/pulsar/pull/6391)
-* [C++] Fixed Redelivery of Messages on UnackedMessageTracker When Ack Messages . [#6498](https://github.com/apache/pulsar/pull/6498)
-
-##### Python Client
-* [Python Client]Fixed the enum34 package not found [#6401](https://github.com/apache/pulsar/pull/6401)
-
-##### Pulsar Websocket
-* [Websocket] Fixed Websocket doesn't set the correct cluster data [#6102](https://github.com/apache/pulsar/pull/6102)
-
-##### Deployments
-* [Helm] Autorecovery - Fixed could not find or load main class [#6373](https://github.com/apache/pulsar/pull/6373)
-* [Helm]: Start proxy pods when at least one broker pod is running [#6158](https://github.com/apache/pulsar/pull/6158)
-
-#### Enhancements
-
-##### Pulsar Broker
-* [Broker] close managed-ledgers before giving up bundle ownership to avoid bad zk-version [#5599](https://github.com/apache/pulsar/pull/5599)
-* [Broker] Add timeout to search for web service URLs to avoid web threads getting stuck [#6124](https://github.com/apache/pulsar/pull/6124)
-* [Broker] Flush the potential duplicated message when add messages to a batch. [#6326](https://github.com/apache/pulsar/pull/6326)
-* [Broker] Avoid getting partition metadata while the topic name is a partition name. [#6339](https://github.com/apache/pulsar/pull/6339)
-* [Broker] Fixed create partitioned topic with a substring of an existing topic name. [#6478](https://github.com/apache/pulsar/pull/6478)
-* [Broker] Do not retry on authorization failure [#6577](https://github.com/apache/pulsar/pull/6577)
-* [Broker]Handle BadVersionException thrown by updateSchemaLocator() [#6683](https://github.com/apache/pulsar/pull/6683)
-* [Broker] Expose bookkeeper expose explicit lac configuration in broker.conf [#5822](https://github.com/apache/pulsar/pull/5822)
-* [Broker] Allow to enable/disable delayed delivery for messages on namespace [#5915](https://github.com/apache/pulsar/pull/5915)
-* [Broker] Prevent creation of regular topic with the same name as existing partitioned topic [#5943](https://github.com/apache/pulsar/pull/5943)
-* [Broker] Reset cursor with a non-exists position [#6120](https://github.com/apache/pulsar/pull/6120)
-* [Broker] Use fully qualified hostname as default to advertise brokers [#6235](https://github.com/apache/pulsar/pull/6235)
-* [broker] Timeout API calls in BrokerService [#6489](https://github.com/apache/pulsar/pull/6489)
-* [Broker] Start namespace service and schema registry service before start broker. [#6499](https://github.com/apache/pulsar/pull/6499)
-* [Broker] Disable channel auto read when publish rate or publish buffer exceeded [#6550](https://github.com/apache/pulsar/pull/6550)
-* [Broker] Resume some servercnx method to public [#6581](https://github.com/apache/pulsar/pull/6581)
-* [Broker] Enable get precise backlog and backlog without delayed messages. [#6310](https://github.com/apache/pulsar/pull/6310)
-* [Broker] Avoid using same OpAddEntry between different ledger handles [#5942](https://github.com/apache/pulsar/pull/5942)
-* [Broker] Clean up closed producer to avoid publish-time for producer [#5988](https://github.com/apache/pulsar/pull/5988)
-* [Broker] Support delete inactive topic when subscriptions caught up [#6077](https://github.com/apache/pulsar/pull/6077)
-* [Broker] Add a message on how to make log refresh immediately when starting a component [#6078](https://github.com/apache/pulsar/pull/6078)
-* [Pulsar Admin] allow tenant admin to manage subscription permission [#6122](https://github.com/apache/pulsar/pull/6122)
-* [Broker] Output resource usage rate to log on broker [#6152](https://github.com/apache/pulsar/pull/6152)
-* [Broker] Creating a topic does not wait for creating cursor of replicators [#6364](https://github.com/apache/pulsar/pull/6364)
-* [Broker] Stop increase unacked messages for the consumer with Exclusive/Failover subscription mode. [#6558](https://github.com/apache/pulsar/pull/6558)
-* [Broker] Not allow sub auto create by admin when disable topic auto create [#6685](https://github.com/apache/pulsar/pull/6685)
-
-
-##### Zookeeper
-* [Zookeeper] Close ZK before canceling future with exception [#6399](https://github.com/apache/pulsar/pull/6399)
-* [ZooKeeper] Upgrade ZooKeeper to 3.5.7 [#6329](https://github.com/apache/pulsar/pull/6329)
-
-##### Pulsar IO
-* [IO] Adds integration test for RabbitMQ [#6033](https://github.com/apache/pulsar/pull/6033)
-
-##### Pulsar Functions
-* [Function] remove future.join() from PulsarSinkEffectivelyOnceProcessor [#6361](https://github.com/apache/pulsar/pull/6361)
-
-##### Stats & Monitoring
-* [Broker] Add backlogSize in topicStats [#5914](https://github.com/apache/pulsar/pull/5914)
-* [Broker] Expose lastConsumedTimestamp and lastAckedTimestamp to consumer stats [#6051](https://github.com/apache/pulsar/pull/6051)
-* Improve backlogSize stats in the topic. [#6700](https://github.com/apache/pulsar/pull/6700)
-
-##### Security
-* Validate tokens for binary connections [#6233](https://github.com/apache/pulsar/pull/6233)
-* Create namespace failed when TLS is enabled in PulsarStandalone [#6457](https://github.com/apache/pulsar/pull/6457)
-* Use more granular permissions for topics [#6504](https://github.com/apache/pulsar/pull/6504)
-
-
-##### Pulsar Schema
-
-* [Schema] Independent schema is set for each consumer generated by topic [#6356](https://github.com/apache/pulsar/pull/6356)
-* [Schema] Extract an original avro schema from the "$SCHEMA" field using reflection. If it doesn't work, the process falls back generation of the schema from POJO.[#6406](https://github.com/apache/pulsar/pull/6406)
-* [Schema] Add verification for SchemaDefinitionBuilderImpl.java [#6405](https://github.com/apache/pulsar/pull/6405)
-
-##### Java client
-* [Client] Start reader inside batch result in read first message in batch. [#6345](https://github.com/apache/pulsar/pull/6345)
-* [Client] Stop shade snappy-java in pulsar-client-shaded [#6375](https://github.com/apache/pulsar/pull/6375)
-* [Client] MultiTopics discovery is broken due to discovery task scheduled twice instead of pendingBatchReceiveTask [#6407](https://github.com/apache/pulsar/pull/6407)
-* [Client] Make SubscriptionMode a member of ConsumerConfigurationData [#6337](https://github.com/apache/pulsar/pull/6337)
-* [Client] Should set either start message id or start message from roll back duration. [#6392](https://github.com/apache/pulsar/pull/6392)
-* [Client] BatchReceivePolicy implements Serializable. [#6423](https://github.com/apache/pulsar/pull/6423)
-* [Client] Remove duplicate cnx method [#6490](https://github.com/apache/pulsar/pull/6490)
-* [Client] Pulsar Java client: Use System.nanoTime() instead of System.currentTimeMillis() to measure elapsed time [#6454](https://github.com/apache/pulsar/pull/6454)
-* [Client] Make tests more stable by using JSONAssert equals [#6247](https://github.com/apache/pulsar/pull/6247)
-* [Client] make acker in BatchMessageIdImpl transient [#6064](https://github.com/apache/pulsar/pull/6064)
-
-
-##### C++ client
-* [C++] Windows CMake corrections [#6336](https://github.com/apache/pulsar/pull/6336)
-* [C++] Avoid calling redeliverMessages() when message list is empty [#6480](https://github.com/apache/pulsar/pull/6480)
-* [C++] Improve cpp-client-lib: provide another `libpulsarwithdeps.a` in dep/rpm [#6458](https://github.com/apache/pulsar/pull/6458)
-
-##### Python Client
-* [Python Client] Support generate pulsar-client for python3.8[#6741](https://github.com/apache/pulsar/pull/6741)
-
-##### Deployments
-* [Helm] Explicit statement env-var 'BOOKIE_MEM' and 'BOOKIE_GC' for values-mini.yaml [#6340](https://github.com/apache/pulsar/pull/6340)
-* [Helm] Add missing check to dashboard-ingress [#6160](https://github.com/apache/pulsar/pull/6160)
-* Make kubernetes yamls for aws operational [#6192](https://github.com/apache/pulsar/pull/6192)
-* Ensure JVM memory and GC options are set for bookie [#6201](https://github.com/apache/pulsar/pull/6201)
-* Default functionAuthProvider when running in k8s [#6203](https://github.com/apache/pulsar/pull/6203)
-
-##### Adaptors
-* [Adaptor] Skip javadoc task for pulsar-client-kafka-compact modules [#5836](https://github.com/apache/pulsar/pull/5836)
-* [Flink-Connector] Get PulsarClient from cache should always return an open instance [#6436](https://github.com/apache/pulsar/pull/6436)
-
-
-### 2.5.0
-
-#### 2019-12-06
-
-#### PIPs
-
-- [PIP-41] Introduce Protocol Handler API [#5130](https://github.com/apache/pulsar/pull/5130) [#5743](https://github.com/apache/pulsar/pull/5473)
-- [PIP-45] Pluggable metadata interface [#5330](https://github.com/apache/pulsar/pull/5330)
-- [PIP-44] Separate schema compatibility checker for producer and consumer [#5227](https://github.com/apache/pulsar/pull/5227)
-- [PIP-43] Producer send messages with different schema [#5141](https://github.com/apache/pulsar/issues/5141) [#5517](https://github.com/apache/pulsar/pull/5517)
-- [PIP-51] Introduce sticky consumer [#5388](https://github.com/apache/pulsar/pull/5388)
-- [PIP-38] Support batch receive in java client. [#4621](https://github.com/apache/pulsar/pull/4621)
-- [PIP-52] PIP-52: [pulsar-sever] Add support of dispatch throttling relative to publish-rate [#5797](https://github.com/apache/pulsar/pull/5797)
-
-#### Fixes
-
-- [Broker] Avoid retrying deleting namespace when topic is already deleted/fenced [#4665](https://github.com/apache/pulsar/pull/4665)
-- [Broker] Fix expiry monitor to continue on non-recoverable error [#4818](https://github.com/apache/pulsar/pull/4818)
-- [Broker] fix ns-isolation api to fetch policy for specific broker [#5314](https://github.com/apache/pulsar/pull/5314)
-- [Broker] external protocols not set to local broker data [#5749](https://github.com/apache/pulsar/pull/5479)
-- [Broker] Add handle exception KeeperException.BadVersionException [#5563](https://github.com/apache/pulsar/pull/5563)
-- [Broker] Fix message deduplicate issue while using external sequence id with batch produce [#5491](https://github.com/apache/pulsar/pull/5491)
-- [Broker] Remove cursor while remove non-durable subscription [#5719](https://github.com/apache/pulsar/pull/5719)
-- [Broker] Fix potential read 0 entries cause dispatcher stop dispatch [#5894](https://github.com/apache/pulsar/pull/5894)
-- [Proxy] Proxy doesn't use the right ca certicate to connect to brokers [#5971](https://github.com/apache/pulsar/pull/5971)
-- [Client] Add SentConnectFrame state check when running `handleError` [#5913](https://github.com/apache/pulsar/pull/5913)
-
-#### Enhancements
-
-- [Zookeeper] Bump zookeeper to version 3.5.6 [#5043](https://github.com/apache/pulsar/pull/5043)
-- [BookKeeper] Upgrade bk version to 4.10.0 [#5607](https://github.com/apache/pulsar/pull/5607)
-- [Broker] Process requests asynchronously on some REST APIs [4765](https://github.com/apache/pulsar/pull/4765) [4778](https://github.com/apache/pulsar/pull/4778) [4795](https://github.com/apache/pulsar/pull/4795)
-- [Broker] Fixes not owned bundles got selected when broker overloading [#5002](https://github.com/apache/pulsar/pull/5002)
-- [Broker] Support update partition for global topic [#5306](https://github.com/apache/pulsar/pull/5306)
-- [Broker] Ensure the handling of PartitionMetadataRequest is async end-to-end [#5307](https://github.com/apache/pulsar/pull/5307)
-- [Broker] Allow to automatically assign TCP ports when starting a broker [#3555](https://github.com/apache/pulsar/pull/3555)
-- [Broker] Introduce publish rate-limiting on topic [#3986](https://github.com/apache/pulsar/pull/3986)
-- [Broker] Add publish rate limit for each broker to avoid OOM [#5710](https://github.com/apache/pulsar/pull/5710)
-- [Broker] Allow for namespace default of offload threshold [#5872](https://github.com/apache/pulsar/pull/5872)
-- [Broker] Avoid unsafe split when validate hostname which might be ipv6 address [#5713](https://github.com/apache/pulsar/pull/5713)
-- [Broker] Support batch authorization of partitioned topic [#5767](https://github.com/apache/pulsar/pull/5767)
-- [Client][Java] Introduce `batchingMaxBytes` setting in pulsar producer [#5045](https://github.com/apache/pulsar/pull/5045)
-- [Client][Java] Add epoch for connection handler to handle create producer timeout [#5571](https://github.com/apache/pulsar/pull/5571)
-- [Performance] Reduce char[] creation on jvm heap [#5055](https://github.com/apache/pulsar/pull/5055)
-- [CLI] Add a broker tool for operations of a specific broker [#5768](https://github.com/apache/pulsar/pull/5768)
-- [CLI] Validate topic name before creating partition/non partition topic via admin cli [#5148](https://github.com/apache/pulsar/pull/5148)
-- [CLI] Make PulsarClusterMetadataSetup idempotent [#5879](https://github.com/apache/pulsar/pull/5879)
-- [CLI] Allow for topic deletions with regex consumers [#5230](https://github.com/apache/pulsar/pull/5230)
-
-#### Stats & Monitoring
-
-- [Broker] Added delayed messages in Prometheus when using namespace-level metrics aggregation [#4691](https://github.com/apache/pulsar/pull/4691)
-- [Dashboard] Increasing Dashboard consumerName field to 256 varchar [4716](https://github.com/apache/pulsar/pull/4716)
-- [Dashboard] integrate peek into messages page [#4966](https://github.com/apache/pulsar/pull/4966)
-- [Dashboard] Support parse batch entry [#4992](https://github.com/apache/pulsar/pull/4992)
-
-#### Security
-
-- [Broker] Add broker-bookie mTLS support [#5042](https://github.com/apache/pulsar/pull/5042)
-
-#### Tiered Storage
-
-- HDFS Offloader [#4403](https://github.com/apache/pulsar/pull/4403)
-- Fix the problem of repeated storage of offload driver metadata [#5834](https://github.com/apache/pulsar/pull/5834)
-
-#### Pulsar Schema
-
-- [Broker] Pulsar schema api should respect to namespace level compatibility [#4821](https://github.com/apache/pulsar/issues/4821)
-- [Client][Java] NPE is thrown when a consumer consumes a partitioned topic with struct schema
- [#4960](https://github.com/apache/pulsar/pull/4960)
-- [Broker] Add compatibility check for primitive schema types [#5051](https://github.com/apache/pulsar/pull/5051)
-- [Broker] Support uploading key/value schema using Pulsar admin [#5000](https://github.com/apache/pulsar/pull/5000)
-- [Client][Java] Schema support encoding & encoding ByteBuf [#5123](https://github.com/apache/pulsar/pull/5123)
-
-#### Pulsar IO
-
-- [Broker] Support reload Source and Sink for Pulsar IO [5008](https://github.com/apache/pulsar/pull/5008)
-- [Connector] Added Kinesis Source Connector [#3784](https://github.com/apache/pulsar/pull/3784)
-- [Connector] Add a source connector for MongoDB [#5316](https://github.com/apache/pulsar/pull/5316)
-- [Connector] Support CDC Connector for MongoDB [#5590](https://github.com/apache/pulsar/pull/5590)
-- [Connector] Improve hbase sink performance [#5705](https://github.com/apache/pulsar/pull/5705)
-
-#### Pulsar Functions
-
-- [Function Worker] Allow resource overcommitting when running functions in Kubernetes [4829](https://github.com/apache/pulsar/pull/4829)
-- [Function Worker] Make Function Authentication Provider pluggable [#5404](https://github.com/apache/pulsar/pull/5404)
-- [Function Worker] Added deletion of state for Functions [#5469](https://github.com/apache/pulsar/pull/5469)
-- [Function Worker] Distribute the CA for KubernetesSecretsTokenAuthProvider [#5398](https://github.com/apache/pulsar/pull/5398)
-- [Function Runtime] Function runtime pluggable [#5463](https://github.com/apache/pulsar/pull/5463)
-- [Function Runtime] Allow functions to pass runtime specific options [#5400](https://github.com/apache/pulsar/pull/5400)
-
-#### Pulsar SQL
-
-- Support for other schema name separators in pulsar SQL [4732](https://github.com/apache/pulsar/issues/4732)
-- Reuse ManagedLedgerFactory instances across SQL queries [4813](https://github.com/apache/pulsar/pull/4813)
-- Using pulsar SQL query messages will appear `NoSuchLedger` when zk root directory changed [#5001](https://github.com/apache/pulsar/pull/5001)
-
-#### Java client
-
-- Not allow use acknowledgeCumulative on Key_shared subscription [#5339](https://github.com/apache/pulsar/pull/5339)
-- Fix bug that beforeConsume() of interceptor is not called when receiver queue size is 0 [#5777](https://github.com/apache/pulsar/pull/5777)
-
-#### Go client
-
-- Use buffered channels to avoid blocking on callback [#5336](https://github.com/apache/pulsar/pull/5336)
-
-#### C++ client
-
-- Change state_ to closed when resultOk is returned [#5446](https://github.com/apache/pulsar/pull/5446)
-- Expose redelivery count [#5677](https://github.com/apache/pulsar/pull/5677)
-
-#### Adaptors
-
-- Add support of pulsar-kafka-adapter for kafka-0.9 API [#4886](https://github.com/apache/pulsar/pull/4886)
-- Add support of pulsar-kafka-adapter for kafka-0.8 API [#4797](https://github.com/apache/pulsar/pull/4797)
-- Make client keepalive interval configurable on pulsar-client-kafka [#5131](https://github.com/apache/pulsar/pull/5131)
-
-#### Transaction
-
-> The development of Pulsar Transaction is still ongoing
-
-- [Buffer] Add new marker to show which message belongs to transaction [#4776](https://github.com/apache/pulsar/pull/4776)
-- [Buffer] Add data ledger position in txn commit marker [#4826](https://github.com/apache/pulsar/pull/4826)
-- [Buffer] Add basic operation of transaction [#4738](https://github.com/apache/pulsar/pull/4738)
-- [Buffer] Add new commands for the transaction [#4866](https://github.com/apache/pulsar/pull/4866)
-- [Protocol] Add default handler to handle transaction related commands [#4891](https://github.com/apache/pulsar/pull/4891)
-- [Client] Introduce Transaction Client API [#4952](https://github.com/apache/pulsar/pull/4952)
-- [Client] Add transaction coordinator client [#4953](https://github.com/apache/pulsar/pull/4953)
-- [Broker] Ownership change listeners [#5457](https://github.com/apache/pulsar/pull/5457)
-- [Coordinator] Bootstrap pulsar system namespace and create TC assign topic [#5515](https://github.com/apache/pulsar/pull/5515)
-- [Coordinator] Add transaction metadata store service [#5504](https://github.com/apache/pulsar/pull/5504)
-
-For a complete list of issues fixed, see
-
-https://github.com/apache/pulsar/milestone/22?closed=1
-
-https://github.com/apache/pulsar/releases/tag/v2.5.0
-
-### 2.4.2
-
-#### 2019-12-04
-
-#### Fixes
-
-* Fixed don't set interrupt flag again after catching interrupt exception in Pulsar Client [#5643](https://github.com/apache/pulsar/pull/5643)
-* Fixed data is not deleted after expiration due to connected readers [#5621](https://github.com/apache/pulsar/pull/5621)
-* Fixed the go client docs missing in website [#5595](https://github.com/apache/pulsar/pull/5595)
-* Fixed schema def build error with protobuf schema [#5569](https://github.com/apache/pulsar/pull/5569)
-* Fixed docs about reset cursor [#5551](https://github.com/apache/pulsar/pull/5551)
-* Fixed repeated initialization of connectorsManager [#5545](https://github.com/apache/pulsar/pull/5545)
-* Fixed Functions unnecessarily restart during FunctionRuntimeManager init phase [#5527](https://github.com/apache/pulsar/pull/5527)
-* Fixed list non-persistent topics shows the persistent topics [#5502](https://github.com/apache/pulsar/pull/5502)
-* Return after triggering callback with empty result [#5500](https://github.com/apache/pulsar/pull/5500)
-* Fixed dispatcher skipping delivery of a batch during concurrent replays [#5499](https://github.com/apache/pulsar/pull/5499)
-* Fixed reader_listener option for Python API [#5487](https://github.com/apache/pulsar/pull/5487)
-* Fixed wrongly report "3600 messages have timed-out" [#5477](https://github.com/apache/pulsar/pull/5477)
-* Fixed broken custom auth-provider that uses authenticationData [#5462](https://github.com/apache/pulsar/pull/5462)
-* Fixed negative ack tracker constructor sequence [#5453](https://github.com/apache/pulsar/pull/5453)
-* Fixed StringSchema static initialization [#5445](https://github.com/apache/pulsar/pull/5445)
-* Fixed message corruption on OOM for batch messages [#5443](https://github.com/apache/pulsar/pull/5443)
-* Fixed couple functions related integration tests [#5434](https://github.com/apache/pulsar/pull/5434)
-* Fixed bug that namespace policies does not take effect due to NPE [#5408](https://github.com/apache/pulsar/pull/5408)
-* Fixed race condition : Failed to read-more entries on dispatcher [#5391](https://github.com/apache/pulsar/pull/5391)
-* Fixed potential deadlock that can occur in addConsumer [#5371](https://github.com/apache/pulsar/pull/5371)
-* Fixed proxy to be able to re-send request body [#5361](https://github.com/apache/pulsar/pull/5361)
-* Fixed pulsar can't load the customized SerDe [#5357](https://github.com/apache/pulsar/pull/5357)
-* Fixed instability in Pulsar Function window integration test [#5337](https://github.com/apache/pulsar/pull/5337)
-* Fixed bk write failure, use signals to resume writing [#5322](https://github.com/apache/pulsar/pull/5322)
-* Fixed bad_weak_ptr error when closing producer [#5315](https://github.com/apache/pulsar/pull/5315)
-* Fixed typo(massage->message) causing prometheus metrics display error [#5299](https://github.com/apache/pulsar/pull/5299)
-* Fixed invalidate cache on zk-cache timeout [#5298](https://github.com/apache/pulsar/pull/5298)
-* Fixed memory leak caused by not being executed ClientConnection destructor [#5286](https://github.com/apache/pulsar/pull/5286)
-* Fixed producer blocked after send an over size message while batch enabled [#5282](https://github.com/apache/pulsar/pull/5282)
-* Fixed race condition while triggering message redelivery after an ack-timeout event [#5276](https://github.com/apache/pulsar/pull/5276)
-* Fixed behavior when getting a key from functions state that doesn't exist [#5272](https://github.com/apache/pulsar/pull/5272)
-* Fixed Cmake to build _pulsar for osx [#5263](https://github.com/apache/pulsar/pull/5263)
-* Fixed client backoff setting does not take effect [#5261](https://github.com/apache/pulsar/pull/5261)
-* Fixed memory leak caused by deadline_timer holding object reference [#5246](https://github.com/apache/pulsar/pull/5246)
-* Fixed in Message Deduplication that may cause incorrect client/broker interaction [#5243](https://github.com/apache/pulsar/pull/5243)
-* Fixed bug that fails to search namespace bundle due to NPE [#5191](https://github.com/apache/pulsar/pull/5191)
-* Fixed bug that message delivery stops after resetting cursor for failover subscription [#5185](https://github.com/apache/pulsar/pull/5185)
-* Fixed exception type check order bug [#5174](https://github.com/apache/pulsar/pull/5174)
-* Fixed spark receiver to account for all the consumer config options [#5152](https://github.com/apache/pulsar/pull/5152)
-* Fixed broker fails to start with function worker enabled and broker client using TLS [#5151](https://github.com/apache/pulsar/pull/5151)
-* Fixed deadlock when resetting cursor [#5136](https://github.com/apache/pulsar/pull/5136)
-* Fixed windowed functions were broken when we changed java function instance to use classloaders [#5117](https://github.com/apache/pulsar/pull/5117)
-* Fixed storage size always 0 without subscription [#5108](https://github.com/apache/pulsar/pull/5108)
-
-#### Enhancements
-
-* Add subscribe position param for consumer of sink [#5532](https://github.com/apache/pulsar/pull/5532)
-* Efficiency improvements for delay delivery tracker [#5498](https://github.com/apache/pulsar/pull/5498)
-* Add is_read_compacted to create_reader() in python API [#5483](https://github.com/apache/pulsar/pull/5483)
-* Make some common use method of ManagedLedger public [#5472](https://github.com/apache/pulsar/pull/5472)
-* Avoid leak on publish failure on batch message [#5442](https://github.com/apache/pulsar/pull/5442)
-* Record message failure and avoid exiting from process on publish failure [#5441](https://github.com/apache/pulsar/pull/5441)
-* Add support for partitioned topic consumer seek by time [#5435](https://github.com/apache/pulsar/pull/5435)
-* Add default loader for latest pyyaml [#5432](https://github.com/apache/pulsar/pull/5432)
-* Trim messages which less than mark delete position for message redelivery [#5378](https://github.com/apache/pulsar/pull/5378)
-* Make skip all messages async [#5375](https://github.com/apache/pulsar/pull/5375)
-* Set default ensemble size to 2 in service conf, to match broker.conf [#5339](https://github.com/apache/pulsar/pull/5339)
-* Only seek when reading unexpected entry [#5356](https://github.com/apache/pulsar/pull/5356)
-* Don't require both region and endpoint to be specified [#5355](https://github.com/apache/pulsar/pull/5355)
-* If cursor is not durable, close dispatcher when all consumers are removed from subscription [#5340](https://github.com/apache/pulsar/pull/5340)
-* Disable stickyRead by default [#5321](https://github.com/apache/pulsar/pull/5321)
-* Allow to specify delivery delay in C++ client [#5317](https://github.com/apache/pulsar/pull/5317)
-* Add debug log + fix thread-factory name [#5302](https://github.com/apache/pulsar/pull/5302)
-* Don't attempt to append on read-only cursor ledger [#5297](https://github.com/apache/pulsar/pull/5297)
-* Close previous dispatcher when subscription type changes [#5288](https://github.com/apache/pulsar/pull/5288)
-* Improve error handling logic for effectively once [#5271](https://github.com/apache/pulsar/pull/5271)
-* Upgrade dependencies for security fixes [#5232](https://github.com/apache/pulsar/pull/5232)
-* Ensure consumer background tasks are cancelled after subscribe failures [#5204](https://github.com/apache/pulsar/pull/5204)
-* Added missing enum value KeyShared on the python wrapper [#5196](https://github.com/apache/pulsar/pull/5196)
-* Make some member variables of Dispatcher volatile [#5193](https://github.com/apache/pulsar/pull/5193)
-* Ensure getting list of topics for namespace is handled asynchronously [#5188](https://github.com/apache/pulsar/pull/5188)
-* Close RateLimiter instance [#5155](https://github.com/apache/pulsar/pull/5155)
-* Throw an error if the key was not specified for querying state [#5145](https://github.com/apache/pulsar/pull/5145)
-* Allow configuring region aware placement related settings [#5100](https://github.com/apache/pulsar/pull/5100)
-* DeleteBookieRack should remove the rack info from zookeeper [#5084](https://github.com/apache/pulsar/pull/5084)
-* Use "info" as the default root logger level [#5079](https://github.com/apache/pulsar/pull/5079)
-* Modify BatcherBuilder interface and it's subs to implement java.io.Serializable, otherwise java.io.NotSerializableException occurs when we use plusar-flink-connector [#5068](https://github.com/apache/pulsar/pull/5068)
-* Don't return DEFAULT_RACK if ZkBookieRackAffinityMapping can't resolve network location [#5067](https://github.com/apache/pulsar/pull/5067)
-* Reload zk cache asynchronously [#5049](https://github.com/apache/pulsar/pull/5049)
-* Add different cache flags to ConcurrentOpenLongPairRangeSet for size() and toString() [#5040](https://github.com/apache/pulsar/pull/5040)
-* Introduce number of threads in perf producer program [#5036](https://github.com/apache/pulsar/pull/5036)
-* Completing connector configuration [#4999](https://github.com/apache/pulsar/pull/4999)
-* Add checkstyle validation and fix style violations in the common module [#4989](https://github.com/apache/pulsar/pull/4989)
-* Trim deleted entries after recover cursor [#4987](https://github.com/apache/pulsar/pull/4987)
-* Expose getLastMessageId method in ConsumerImpl [#4911](https://github.com/apache/pulsar/pull/4911)
-* Add a documentation page for metrics reference [#4910](https://github.com/apache/pulsar/pull/4910)
-* Provide a convenient method for C++ client producer batch container [#4885](https://github.com/apache/pulsar/pull/4885)
-* Add schema admin api get schema info with schema version [#4877](https://github.com/apache/pulsar/pull/4877)
-* Return Message ID for send for cpp and cgo client [#4811](https://github.com/apache/pulsar/pull/4811)
-* Add the schema admin api [#4800](https://github.com/apache/pulsar/pull/4800)
-* Clarify how retention interacts with readers [#4780](https://github.com/apache/pulsar/pull/4780)
-* Get schema info with topic partition [#4751](https://github.com/apache/pulsar/pull/4751)
-* Remove failed stale producer from the connection [#4741](https://github.com/apache/pulsar/pull/4741)
-* Update logic for picking active consumer for failover subscription on non-partitioned topic [#4604](https://github.com/apache/pulsar/pull/4604)
-
-### 2.4.1
-
-#### 2019-08-30
-
-#### Fixes
-
-* Fixed wrong serialize of batchBuilder in ProducerConfigurationData [#4620](https://github.com/apache/pulsar/pull/4620)
-* Fixed SchemaInfo properties losing when registering schema using admin api [#4617](https://github.com/apache/pulsar/pull/4617)
-* Fixed wrong topic domain returned by get partitioned topic [#4613](https://github.com/apache/pulsar/pull/4613)
-* Fixed pulsar-dashboard wrong count number of bundles [#4637](https://github.com/apache/pulsar/pull/4637)
-* Fixed partitionIndex error in consumer for a single partitioned topic [#4591](https://github.com/apache/pulsar/pull/4591)
-* Fixed deadlock on get-status rest-api call in broker [#4616](https://github.com/apache/pulsar/pull/4616)
-* Fixed deadlock in subscribeAsync demo [#4649](https://github.com/apache/pulsar/pull/4649)
-* Fixed C++ client lookup error over HTTP in standalone [#4625](https://github.com/apache/pulsar/pull/4625)
-* Fixed NPE at managed-ledger when fetch reader internal-stats [#4615](https://github.com/apache/pulsar/pull/4615)
-* Fixed C++ client producer sendAsync() hang when no enough batched message [#4657](https://github.com/apache/pulsar/pull/4657)
-* Fixed issue when submitting NAR via file url [#4577](https://github.com/apache/pulsar/pull/4577)
-* Renamed C++ logger enum names to avoid conflicts with compiler macros [#4664](https://github.com/apache/pulsar/pull/4664)
-* Fixed leaking of pulsar-io-influxdb in distribution [#4678](https://github.com/apache/pulsar/pull/4678)
-* Fixed the default port for https and http in admin client [#4623](https://github.com/apache/pulsar/pull/4623)
-* Fixed wrong schema delete when checking compatibility [#4669](https://github.com/apache/pulsar/pull/4669)
-* Fixed `docker/publish.sh` doesn't work for pulsar-all and pulsar-standalone images [#4705](https://github.com/apache/pulsar/pull/4705)
-* Fixed integration-test failure when execute pip3 install pulsar_client [#4754](https://github.com/apache/pulsar/pull/4754)
-* Added log folder in `pulsa-function-go` back [#4736](https://github.com/apache/pulsar/pull/4736)
-* Fixed Pulsar SQL NPE when predicate pushdown for publish_time [#4744](https://github.com/apache/pulsar/pull/4744)
-* Fixed redelivered message logic of partition topic [#4653](https://github.com/apache/pulsar/pull/4653)
-* Fixed C++ log level names in Log4cxxLogger [#4735](https://github.com/apache/pulsar/pull/4735)
-* Fixed go function package not executable [#4743](https://github.com/apache/pulsar/pull/4743)
-* Added anonymous role to proxy configuration [#4733](https://github.com/apache/pulsar/pull/4733)
-* Added kubernetes namespace to function instance url [#4701](https://github.com/apache/pulsar/pull/4701)
-* Fixed go function not parse conf content first [#4746](https://github.com/apache/pulsar/pull/4746)
-* Made PulsarKafkaProducer thread safe [#4745](https://github.com/apache/pulsar/pull/4745)
-* Fixed messages not get acked if there is not sink topic [#4815](https://github.com/apache/pulsar/pull/4815)
-* Fixed bug when function package jar/py/go and runtime is not set [#4814](https://github.com/apache/pulsar/pull/4814)
-* Fixed topic loading in rest-api not time out in zooKeeperOperationTimeoutSeconds [#4805](https://github.com/apache/pulsar/pull/4805)
-* Fixed default retention policy miss upload to zk [#4810](https://github.com/apache/pulsar/pull/4810)
-* Added checking function implements correct interface [#4844](https://github.com/apache/pulsar/pull/4844)
-* Fixed retention size policy bug [#4825](https://github.com/apache/pulsar/pull/4825)
-* Catch throwable in interceptors of consumer and producer [#4860](https://github.com/apache/pulsar/pull/4860)
-* Fixed first position in managedLedger is ahead of the last [#4853](https://github.com/apache/pulsar/pull/4853)
-* Fixed concurrent access of `uninitializedCursors` in `ManagedLedgerImpl.asyncOpenCursor` [#4837](https://github.com/apache/pulsar/pull/4837)
-* Fixed schema not found handling in pulsar-sql [#4890](https://github.com/apache/pulsar/pull/4890)
-* Fixed requests not respect no_proxy env variable in dashboard [#4867](https://github.com/apache/pulsar/pull/4867)
-* Fixed broken replication msg to specific cluster [#4930](https://github.com/apache/pulsar/pull/4930)
-* Fixed dashboard peek parse message error [#4918](https://github.com/apache/pulsar/pull/4918)
-* Fixed StructSchema reader cache loading logic [#4962](https://github.com/apache/pulsar/pull/4962)
-* Fixed fd leakage in FunctionActioner.downloadFile [#4970](https://github.com/apache/pulsar/pull/4970)
-* Fixed python function str bytes convert in example custom_object_function.py [#4946](https://github.com/apache/pulsar/pull/4946)
-* Fixed NPE while cleaning up namespace node [#4965](https://github.com/apache/pulsar/pull/4965)
-* Fixed the getSchema logic in pulsar proxy [#4975](https://github.com/apache/pulsar/pull/4975)
-* Fixed warning by add default loader for latest pyyaml [#4974](https://github.com/apache/pulsar/pull/4974)
-* Fixed snappy compressor compile error in pulsar-client-cpp [#4972](https://github.com/apache/pulsar/pull/4972)
-* Reinitialize certain components for externally managed runtimes when moving functions [#5007](https://github.com/apache/pulsar/pull/5007)
-* Upgraded jackson-databind [#5011](https://github.com/apache/pulsar/pull/5011)
-* Fixed the problem of missing dependencies less in docker [#5034](https://github.com/apache/pulsar/pull/5034)
-* Fixed duplicated Prometheus TYPE in broker metrics [#4183](https://github.com/apache/pulsar/pull/4183)
-* Fixed pulsar sink and source state by init state earlier [#5046](https://github.com/apache/pulsar/pull/5046)
-
-#### Enhancements
-
-* Re-factored Component implementation [#4541](https://github.com/apache/pulsar/pull/4541)
-* Provided a clock for generating publish timestamp for producers [#4562](https://github.com/apache/pulsar/pull/4562)
-* Reduced unnecessary track message calls [#4595](https://github.com/apache/pulsar/pull/4595)
-* Supported dynamic configure with escape char [#4611](https://github.com/apache/pulsar/pull/4611)
-* Added null check for function/source/sink configs [#4627](https://github.com/apache/pulsar/pull/4627)
-* Added delete dynamic config api [#4614](https://github.com/apache/pulsar/pull/4614)
-* Made broker replication mtls configuration dynamic [#4609](https://github.com/apache/pulsar/pull/4609)
-* Added authorization to function worker REST endpoints [#4628](https://github.com/apache/pulsar/pull/4628)
-* Improved and add authorization to function download and upload [#4644](https://github.com/apache/pulsar/pull/4644)
-* Allowed consumer retrieve the sequence id that the producer set [#4645](https://github.com/apache/pulsar/pull/4645)
-* Added perPartition parameter to partitioned-stats API [#4639](https://github.com/apache/pulsar/pull/4639)
-* Supported Pulsar schema for pulsar kafka client wrapper [#4534](https://github.com/apache/pulsar/pull/4534)
-* Supported delete and update event for JDBC Sink [#4358](https://github.com/apache/pulsar/pull/4358)
-* Cleaned up tests in the presto module [#4683](https://github.com/apache/pulsar/pull/4683)
-* Added allowAutoTopicCreation to broker.conf and related configuration [#4694](https://github.com/apache/pulsar/pull/4694)
-* Changed to use classloaders to load Java functions [#4685](https://github.com/apache/pulsar/pull/4685)
-* Removed fixed server type check in kerberos [#4758](https://github.com/apache/pulsar/pull/4758)
-* Changed type of publish_time to timestamp [#4757](https://github.com/apache/pulsar/pull/4757)
-* Added read-timeout to admin-request [#4762](https://github.com/apache/pulsar/pull/4762)
-* Added checking of deleted schema when adding schema [#4731](https://github.com/apache/pulsar/pull/4731)
-* Added strand to C++ client for exclusive control [#4750](https://github.com/apache/pulsar/pull/4750)
-* Added support to create partitioned topic with 1 partition [#4764](https://github.com/apache/pulsar/pull/4764)
-* Added getters and setters to PulsarService & BrokerService [#4709](https://github.com/apache/pulsar/pull/4709)
-* Added configure ack-timeout tick time [#4760](https://github.com/apache/pulsar/pull/4760)
-* Added options to rewrite namespace delimiter for pulsar sql [#4749](https://github.com/apache/pulsar/pull/4749)
-* Made Pulsar SQL supports pulsar's primitive schema [#4728](https://github.com/apache/pulsar/pull/4728)
-* Added basic authentication capabilities to Pulsar SQL [#4779](https://github.com/apache/pulsar/pull/4779)
-* Improved SchemaInfoProvider to fetch schema info asynchronously [#4836](https://github.com/apache/pulsar/pull/4836)
-* Supported KeyValue schema use AUTO_CONSUME as key/value schema [#4839](https://github.com/apache/pulsar/pull/4839)
-* Provided action type for insert in pulsar-io-jdbc [#4862](https://github.com/apache/pulsar/pull/4862)
-* Made partition as internal column in pulsar-sql [#4888](https://github.com/apache/pulsar/pull/4888)
-* Added option to disable authentication for proxy /metrics [#4921](https://github.com/apache/pulsar/pull/4921)
-
-
-
-### 2.4.0
-
-#### 2019-06-30
-
-#### PIPs
-
-* PIP-26: [Added support for delayed message delivery](https://github.com/apache/pulsar/wiki/PIP-26%3A-Delayed-Message-Delivery)
-[#4062](https://github.com/apache/pulsar/pull/4062), note that messages are only delayed on shared subscriptions.
-* PIP-28: [Pulsar Proxy Gateway Improvement](https://github.com/apache/pulsar/wiki/PIP-28%3A-Pulsar-Proxy-Gateway-Improvement) [#3915](https://github.com/apache/pulsar/pull/3915)
-* PIP-29: [One package for both pulsar client and pulsar admin](https://github.com/apache/pulsar/wiki/PIP-29%3A-One-package-for-both-pulsar-client-and-pulsar-admin) [#3662](<https://github.com/apache/pulsar/pull/3662>)
-* PIP-30: [Change authentication provider API to support mutual authentication for Kerberos Authentication](https://github.com/apache/pulsar/wiki/PIP-30%3A-change-authentication-provider-API-to-support-mutual-authentication) [#3677](https://github.com/apache/pulsar/pull/3677)
-[#3821](https://github.com/apache/pulsar/pull/3821) [#3997](https://github.com/apache/pulsar/pull/3997)
-* PIP-32: [Go Function API, Instance and LocalRun](https://github.com/apache/pulsar/wiki/PIP-32%3A-Go-Function-API%2C-Instance-and-LocalRun) [#3854](https://github.com/apache/pulsar/pull/3854) [#4008](https://github.com/apache/pulsar/pull/4008) [#4174](https://github.com/apache/pulsar/pull/4174)
-* PIP-33: [Replicated subscriptions](https://github.com/apache/pulsar/wiki/PIP-33%3A-Replicated-subscriptions) to keep subscription state in-sync across multiple geographical regions [#4299](https://github.com/apache/pulsar/pull/4299) [#4340](https://github.com/apache/pulsar/pull/4340) [#4354](https://github.com/apache/pulsar/pull/4354) [#4396](https://github.com/apache/pulsar/pull/4396)
-* PIP-34: [Key_Shared](https://github.com/apache/pulsar/wiki/PIP-34%3A-Add-new-subscribe-type-Key_Failover) subscription, [Architecture for Key_Shared](http://pulsar.apache.org/docs/en/concepts-messaging/#key_shared) [#4079](https://github.com/apache/pulsar/pull/4079) [#4120](https://github.com/apache/pulsar/pull/4120) [#4335](https://github.com/apache/pulsar/pull/4335) [#4372](https://github.com/apache/pulsar/pull/4372) [#4407](https://github.com/apache/pulsar/pull/4407) [#4406](https: [...]
-* PIP-36: [Support set message size in broker.conf](https://github.com/apache/pulsar/wiki/PIP-36%3A-Max-Message-Size) [#4247](https://github.com/apache/pulsar/pull/4247)
-
-#### Fixes
-
-* Fix possible message loss using peer-cluster feature [#3426](https://github.com/apache/pulsar/pull/3426)
-* Fix pulsar standalone does not read zk port from conf/standalone.conf [#3790](https://github.com/apache/pulsar/pull/3790)
-* Fix some issues of ZkIsolatedBookieEnsemblePlacementPolicy [#3917](https://github.com/apache/pulsar/pull/3917) [#3918](https://github.com/apache/pulsar/pull/3918)
-* Fix NPE when unload non-existent topic [#3946](https://github.com/apache/pulsar/pull/3946)
-* Fix race condition while deleting global topic [#4173](https://github.com/apache/pulsar/pull/4173)
-* Fix deadlock on skip messages [#4411](https://github.com/apache/pulsar/pull/4411)
-* Fix NPE when closing batch during a reconnection [#4427](https://github.com/apache/pulsar/pull/4427)
-* Fix race condition of read-timeout task in managed ledger [#4437](https://github.com/apache/pulsar/pull/4437)
-* Disable sticky read by default [#4526](https://github.com/apache/pulsar/pull/4526)
-* Fix race condition between timeout-task and add-call complete [#4455](https://github.com/apache/pulsar/pull/4455)
-
-#### Enhancements
-
-* Optimize message replay for large backlog consumer [#3732](https://github.com/apache/pulsar/pull/3732)
-* Added support for websocket produce/consume command [#3835](https://github.com/apache/pulsar/pull/3835)
-* Added support for TTL config in broker.conf [#3898](https://github.com/apache/pulsar/pull/3898)
-* Reduce memory used in ClientCnx for pending lookups [#4104](https://github.com/apache/pulsar/pull/4104)
-* Reduce number of hashmap sections for ledger handles cache [#4102](https://github.com/apache/pulsar/pull/4102)
-* Added backlog and offloaded size in Prometheus stats [#4150](https://github.com/apache/pulsar/pull/4150)
-* Added support for configure the managed ledger cache eviction frequency [#4066](https://github.com/apache/pulsar/pull/4066)
-* Added support to avoid payload copy when inserting into managed ledger cache [#4197](https://github.com/apache/pulsar/pull/4197)
-* Added support to cache unack-messageId into OpenRangeSet [#3819](https://github.com/apache/pulsar/pull/3819)
-* Added support configure static PulsarByteBufAllocator to handle OOM errors [#4196](https://github.com/apache/pulsar/pull/4196)
-* Auto refresh new tls certs for jetty webserver [#3645](<https://github.com/apache/pulsar/pull/3645>)
-* Create non-persistent topic by pulsar-admin/rest api [#3625](<https://github.com/apache/pulsar/pull/3625>)
-* Consumer priority-level in Failover subscription [#2954](https://github.com/apache/pulsar/pull/2954)
-
-#### Security
-
-* Added support for other algorithms in token auth [#4528](https://github.com/apache/pulsar/pull/4528)
-
-#### Namespace Policies
-
-* Added support for tenant based bookie isolation [#3933](https://github.com/apache/pulsar/pull/3933)
-* Added support for secondary bookie isolation group at namespace [#4458](https://github.com/apache/pulsar/pull/4458)
-* Added support for secondary bookie-isolation-group [#4261](https://github.com/apache/pulsar/pull/4261)
-* Added support for replicator rate limit between clusters [#4273](https://github.com/apache/pulsar/pull/4273)
-* Disable backlog quota check by default [#4320](https://github.com/apache/pulsar/pull/4320)
-
-#### Tiered Storage
-
-* Added support for Pulsar SQL to read data from tiered storage [#4045](https://github.com/apache/pulsar/pull/4045)
-
-#### Pulsar Schema
-
-* Added schema versioning to support multi version messages produce and consume [#3876](https://github.com/apache/pulsar/pull/3876) [#3670](https://github.com/apache/pulsar/pull/3670) [#4211](https://github.com/apache/pulsar/pull/4211) [#4325](https://github.com/apache/pulsar/pull/4325) [#4548](https://github.com/apache/pulsar/pull/4548)
-* Added `TRANSITIVE` schema check strategies to support compatibility check over all existing schemas [#4214](https://github.com/apache/pulsar/pull/4214)
-* Added schema data validator [#4360](https://github.com/apache/pulsar/pull/4360)
-* Added support for delete schema when deleting a topic [#3941](https://github.com/apache/pulsar/pull/3941)
-* Added generic record builder [#3690](https://github.com/apache/pulsar/pull/3690)
-
-#### Pulsar IO
-
-* Added IO connector for flume source and sink [#3597](<https://github.com/apache/pulsar/pull/3597>)
-* Added IO connector for redis sink [#3700](https://github.com/apache/pulsar/pull/3700)
-* Added IO connector for solr sink [#3885](https://github.com/apache/pulsar/pull/3885)
-* Hide kafka-connecter details for easy use debezium connector [#3825](https://github.com/apache/pulsar/pull/3825)
-* Added IO connector for debezium PostgreSQL source [#3924](https://github.com/apache/pulsar/pull/3924)
-* Enhancements for RabbitMQ source configuration [#3937](https://github.com/apache/pulsar/pull/3937)
-* Added IO connector for RabbitMQ sink [#3967](https://github.com/apache/pulsar/pull/3967)
-* Added IO connector for InfluxDB sink [#4017](https://github.com/apache/pulsar/pull/4017)
-
-#### Pulsar functions
-
-* Added support for authentication [#3735](https://github.com/apache/pulsar/pull/3735) [#3874](https://github.com/apache/pulsar/pull/3874) [#4198](https://github.com/apache/pulsar/pull/4198)
-* Fix NPE when stats manager not initialized [#3891](https://github.com/apache/pulsar/pull/3891)
-* Added async state manipulation methods [#3798](https://github.com/apache/pulsar/pull/3978)
-* Fix fail to update functions in effectively-once mode [#3993](https://github.com/apache/pulsar/issues/3993)
-* Added labels to function statefulsets and services [#4038](https://github.com/apache/pulsar/pull/4038)
-* Added support for set key for message when using function publish [#4005](https://github.com/apache/pulsar/pull/4005)
-* Use negative acknowledge to instead ackTimeout [#4103](https://github.com/apache/pulsar/pull/4103)
-* Fix backward compatibility with 2.2 auth not working [#4241](https://github.com/apache/pulsar/pull/4241)
-
-#### Java client
-
-* Added negative acks [#3703](https://github.com/apache/pulsar/pull/3703)
-* Added support for backoff strategy configuration [#3848](https://github.com/apache/pulsar/pull/3848)
-* Added support for configure TypedMessageBuilder through a Map conf object [#4015](https://github.com/apache/pulsar/pull/4015)
-* Added interceptor for negative ack send [#3962](https://github.com/apache/pulsar/pull/3962)
-* Added support for seek operate on reader [#4031](https://github.com/apache/pulsar/pull/4031)
-* Store key part of KeyValue schema into pulsar message keys [#4117](https://github.com/apache/pulsar/pull/4117)
-* Added interceptor for ack timeout [#4300](https://github.com/apache/pulsar/pull/4300)
-* Added support for snappy compression [#4259](https://github.com/apache/pulsar/pull/4259)
-* Added support for key based batcher [#4435](https://github.com/apache/pulsar/pull/4435)
-
-#### Python client
-
-* Added negative acks [#3816](https://github.com/apache/pulsar/pull/3816)
-* Added support for snappy compression [#4319](https://github.com/apache/pulsar/pull/4319)
-
-#### Go client
-
-* Added negative acks [#3817](https://github.com/apache/pulsar/pull/3817)
-* Added support for go schema [#3904](https://github.com/apache/pulsar/pull/3904)
-* Added support for snappy compression [#4319](https://github.com/apache/pulsar/pull/4319)
-* Added support for Key_Shared subscription [#4465](https://github.com/apache/pulsar/pull/4465)
-
-#### C++ client
-
-* Added negative acks [#3750](https://github.com/apache/pulsar/pull/3750)
-* Fix ack timeout when subscribing to regex topic [#3897](https://github.com/apache/pulsar/pull/3879)
-* Added support for Key_Shared subscription [#4366](https://github.com/apache/pulsar/pull/4366)
-
-#### Adaptors
-
-* In Kafka client wrapper, added some configurations [#3753](https://github.com/apache/pulsar/pull/3753) [#3797](https://github.com/apache/pulsar/pull/3797) [#3843](https://github.com/apache/pulsar/pull/3843) [#3887](https://github.com/apache/pulsar/pull/3887) [#3991](https://github.com/apache/pulsar/pull/3911)
-* In Apache Flink connector, allow to specify a custom Pulsar producer [#3894](https://github.com/apache/pulsar/pull/3894) and client authentication [#3949](https://github.com/apache/pulsar/pull/3949)
-* In Apache Flink connector, added support for accept ClientConfigurationData, ProducerConfigurationData, ConsumerConfigurationData [#4232](https://github.com/apache/pulsar/pull/4232)
-* In Apache Storm connector, fix NPE while emitting next tuple [#3991](https://github.com/apache/pulsar/pull/3991) and some add some enhancements [#4280](https://github.com/apache/pulsar/pull/4280) [#4239](https://github.com/apache/pulsar/pull/4239) [#4238](https://github.com/apache/pulsar/pull/4238) [#4236](https://github.com/apache/pulsar/pull/4236) [#4495](https://github.com/apache/pulsar/pull/4495) [#4494](https://github.com/apache/pulsar/pull/4494)
-
-For a complete list of issues fixed, see
-
-https://github.com/apache/pulsar/milestone/20?closed=1
-
-https://github.com/apache/pulsar/releases/tag/v2.4.0
-
-### 2.3.2
-
-#### 2019-05-30
-
-#### Fixes
-
-* Validate admin operation on topic with authoritative parameter [#4270](https://github.com/apache/pulsar/pull/4270)
-* fix bug with source local run [#4278](https://github.com/apache/pulsar/pull/4278)
-* fix cannot use size (type _Ctype_int) as type _Ctype_ulong [#4212](https://github.com/apache/pulsar/pull/4212)
-* Fix segfault in c++ producer [#4219](https://github.com/apache/pulsar/pull/4219)
-* AlwaysCompatible doesn't use AlwaysSchemaValidator in 2.3.1 component/schemaregistry [#4181](https://github.com/apache/pulsar/pull/4181)
-* Avoid potentially blocking method during topic ownership check [#4190](https://github.com/apache/pulsar/pull/4190)
-* [pulsar-broker]Fix: client-producer can't reconnect due to failed producer-future on cnx cache [#4138](https://github.com/apache/pulsar/pull/4138)
-* Removing # TYPE comment from topic metrics in Prometheus [#4136](https://github.com/apache/pulsar/pull/4136)
-* For functions metrics in prometheus also remove TYPE [#4081](https://github.com/apache/pulsar/pull/4091)
-* Fix: set receive queue size for sinks [#4091](https://github.com/apache/pulsar/pull/4091)
-* Fix: Exception when switch cluster from auth enabled to auth disabled [#4069](https://github.com/apache/pulsar/pull/4069)
-* Fix update cli source sink [#4061](https://github.com/apache/pulsar/pull/4061)
-* Fix connectors nested configs [#4067](https://github.com/apache/pulsar/pull/4067)
-* For functions metrics, avoid having HELP [#4029](https://github.com/apache/pulsar/pull/4029)
-* Fix Python functions state which is completely broken [#4027](https://github.com/apache/pulsar/pull/4027)
-* [issue #3975] Bugfix NPE on non durable consumer [#3988](https://github.com/apache/pulsar/pull/3988)
-* Fix: Function auth should ignore exception because it might be anonymous user [#4185](https://github.com/apache/pulsar/pull/4185)
-* [pulsar-function] fix worker-stats broken admin-api [#4068](https://github.com/apache/pulsar/pull/4068)
-* fix errors in sql doc [#4030](https://github.com/apache/pulsar/pull/4030)
-* Fix the swagger files generated by removing troublesome class [#4024](https://github.com/apache/pulsar/pull/4024)
-* [pulsar-function] fix broken backward compatibility with v1-namespace while registering function [#4224](https://github.com/apache/pulsar/pull/4224)
-* Revert dup consumer and related code [#4142](https://github.com/apache/pulsar/pull/4142)
-* [issue 4274][pulsar-io]Add double quotation marks for metrics with remote_cluster [#4295](https://github.com/apache/pulsar/pull/4295)
-
-#### Enhancements
-
-* By default, auto configure the size of Bookie read/write cache [#4297](https://github.com/apache/pulsar/pull/4297)
-* Upgrade to BookKeeper 4.9.2 [#4288](https://github.com/apache/pulsar/pull/4288)
-* [pulsar-function] support bookie authentication from function-worker [#4088](https://github.com/apache/pulsar/pull/4088)
-* Optimizing performance for Pulsar function archive download [#4082](https://github.com/apache/pulsar/pull/4082)
-* allow users to update output topics for functions and sources [#4092](https://github.com/apache/pulsar/pull/4092)
-* improve data-generator source performance [#4058](https://github.com/apache/pulsar/pull/4058)
-* [client] Set actual topic name to partitioned consumer [#4064](https://github.com/apache/pulsar/pull/4064)
-* ack records in datagenerator print sink [#4052](https://github.com/apache/pulsar/pull/4052)
-* [security] Upgrade athenz libraries [#4056](https://github.com/apache/pulsar/pull/4056)
-* [python client] Handle subrecords in JsonSchema encoding [#4023](https://github.com/apache/pulsar/pull/4023)
-* [Issue 3987][pulsar-broker]Handle config is null when create tenant [#4019](https://github.com/apache/pulsar/pull/4019)
-* Add bookkeeper client version constraint [#4013](https://github.com/apache/pulsar/pull/4013)
-* Improve error handling for triggering function when there is a schema mismatch [#3995](https://github.com/apache/pulsar/pull/3995)
-* [pulsar-broker] add producer/consumer id in error-logging [#3961](https://github.com/apache/pulsar/pull/3961)
-
-
-### 2.3.1
-
-#### 2019-04-12
-
-#### Fixes
-
- * Fixed C++ batch acks tracker to evict message from sendList array. This was causing a slowdown in
- C++ consumers [#3618](https://github.com/apache/pulsar/pull/3618)
- * Allow publishing messages >5MB with batching (when they compress to <5MB) [#3673](https://github.com/apache/pulsar/pull/3673) and [#3718](https://github.com/apache/pulsar/pull/3718)
- * Use at least 8 threads in Jetty thread pool. This fixed deadlocks in Jetty requests handling [#3776](https://github.com/apache/pulsar/pull/3776)
- * Fixed Reader.HasNext() in Go client [#3764](https://github.com/apache/pulsar/pull/3764)
- * Fixed increasing consumer permits after ack dedup operation. [#3787](https://github.com/apache/pulsar/pull/3787)
- * Set the dedup cursor as "inactive" after recovery [#3612](https://github.com/apache/pulsar/pull/3612)
- * Fix read batching message by pulsar reader [#3830](https://github.com/apache/pulsar/pull/3830)
- * Fix submit function with code specified via URL [#3934](https://github.com/apache/pulsar/pull/3934)
- * Fixed reader reading from a partition [#3960](https://github.com/apache/pulsar/pull/3960)
- * Fixed issue with Authorization header missing after client gets redirected [#3869](https://github.com/apache/pulsar/pull/3869)
-
-#### Enhancements
- * Added `producer.flush()` on Python [#3685](https://github.com/apache/pulsar/pull/3685)
- * Introduced schema builder to define schema [#3682](https://github.com/apache/pulsar/pull/3682)
- * Support passing schema definition for JSON and AVRO schemas [#3766](https://github.com/apache/pulsar/pull/3766)
- * Exposing InitialPosition setting in Python consumer [#3714](https://github.com/apache/pulsar/pull/3714)
-
-
- For a complete list of issues fixed, see
-
- https://github.com/apache/pulsar/milestone/21?closed=1
-
- https://github.com/apache/pulsar/releases/tag/v2.3.1
-
-
-### 2.3.0
-
-#### 2019-02-20
-
-#### General
-
- * Support for schema definitions in the Pulsar [Python client library](https://pulsar.apache.org/docs/client-libraries-python/#schema)
- * PIP-25: [Token based authentication](https://pulsar.apache.org/docs/security-token-client/) [#2888](https://github.com/apache/pulsar/pull/2888),
- [#3067](https://github.com/apache/pulsar/pull/3067) and [#3089](https://github.com/apache/pulsar/pull/3089)
- * Updated to [Apache BookKeeper 4.9.0](https://bookkeeper.apache.org/docs/4.9.0/overview/releaseNotes/)
- * ZStandard compression codec [#3159](https://github.com/apache/pulsar/pull/3159). Note that
- when a producer choose Zstd compression, a consumer will need to be at least at version 2.3.0
- to be able to correctly receive the messages.
- * Support for Java 11 [#3006](https://github.com/apache/pulsar/pull/3006)
- * Added `Schema.AUTO_PRODUCE` type to allow to publish serialized data and validate it against the
- topic schema [#2685](https://github.com/apache/pulsar/pull/2685)
- * Added `Schema.KeyValue` to allow for schema to be validated on message keys as well as payloads. [#2885](https://github.com/apache/pulsar/pull/2885)
- * Support TLS authentication and authorization in standalone mode [#3360](https://github.com/apache/pulsar/pull/3360)
- * When creating namespace, use local cluster by default [#3571](https://github.com/apache/pulsar/pull/3571)
- * Tag BookKeeper ledgers created by Pulsar with topic/subscription names for info/debug purposes
- [#3525](https://github.com/apache/pulsar/pull/3525)
- * Enabled sticky reads in BookKeeper reads to increase IO efficiency with read-ahead [#3569](https://github.com/apache/pulsar/pull/3569)
- * Several optimization in Pulsar SQL Presto connector ([#3128](https://github.com/apache/pulsar/pull/3128),
- [#3135](https://github.com/apache/pulsar/pull/3135), [#3139](https://github.com/apache/pulsar/pull/3139),
- [#3144](https://github.com/apache/pulsar/pull/3144), [#3143](https://github.com/apache/pulsar/pull/3143))
- * Configure Pulsar broker data cache automatically from JVM settings [#3573](https://github.com/apache/pulsar/pull/3573)
- * Reuse the SSL context objects [#3550](https://github.com/apache/pulsar/pull/3550)
- * Automatic schema update can be disabled through admin interface [#2691](https://github.com/apache/pulsar/pull/2691)
- * Support Dead-Letter-Queue from WebSocket proxy [#2968](https://github.com/apache/pulsar/pull/2968)
- * Pull-mode for WebSocket proxy [#3058](https://github.com/apache/pulsar/pull/3058)
- * Export Jetty stats to Prometheus [#2804](https://github.com/apache/pulsar/pull/2804)
- * Added stats for Pulsar proxy [#2740](https://github.com/apache/pulsar/pull/2740)
- * Allow subscribers to access subscription admin-api [#2981](https://github.com/apache/pulsar/pull/2981)
- * Make brokers read on closest Bookie in a multi-region deployment [#3171](https://github.com/apache/pulsar/pull/3171)
-
-#### Fixes
- * Fixed deadlock in reusing ZooKeeper event thread [#3591](https://github.com/apache/pulsar/pull/3591)
- * In functions log topic appender, don't set producer name [#3544](https://github.com/apache/pulsar/pull/3544)
- * When cursor recovery encounters empty cursor ledger, fallback to latest snapshot [#3487](https://github.com/apache/pulsar/pull/3487)
- * Fixed C++ regex-consumer when using HTTP service URL [#3407](https://github.com/apache/pulsar/pull/3407)
- * Fix race condition: broker not scheduling read for active consumer [#3411](https://github.com/apache/pulsar/pull/3411)
-
-#### Pulsar IO
- * Added Debezium connector for Change-Data-Capture into Pulsar [#2791](https://github.com/apache/pulsar/pull/2791)
- * Added MongoDB connector [#3561](https://github.com/apache/pulsar/pull/3561)
- * Added Elastic Search connector [#2546](https://github.com/apache/pulsar/pull/2546)
- * Added HBase sink [#3368](https://github.com/apache/pulsar/pull/3368)
- * Added Local files connector [#2869](https://github.com/apache/pulsar/pull/2869)
- * Report source/sink stats in Prometheus [#3261](https://github.com/apache/pulsar/pull/3261)
- * Allow filtering in Twitter Firehose connector [#3298](https://github.com/apache/pulsar/pull/3298)
- * Sources/Sinks can be launched using fat jars as well [#3166](https://github.com/apache/pulsar/pull/3166)
-
-#### Pulsar Functions
- * Added Kubernetes runtime [#1950](https://github.com/apache/pulsar/pull/1950)
- * Secrets interface [#2826](https://github.com/apache/pulsar/pull/2826)
- * Cleanup subscriptions when deleting functions [#3299](https://github.com/apache/pulsar/pull/3299)
- * Add Windowfunction interface to functions api [#3324](https://github.com/apache/pulsar/pull/3324)
- * Support for accessing state in Python [#2714](https://github.com/apache/pulsar/pull/2714)
- * Support submitting Python functions as wheel file
- * Support submitting Python functions as Zip file with dependencies included [#3321](https://github.com/apache/pulsar/pull/3321)
- * Add minimum amount of resources to run setting for functions [#3536](https://github.com/apache/pulsar/pull/3536)
- * Fixed the behavior of Function start/stop [#3477](https://github.com/apache/pulsar/pull/3477)
-
-#### Java client
- * Moved Pulsar v1 client API into separate artifact [#3228](https://github.com/apache/pulsar/pull/3228).<br />
- Applications that are using the Pulsar v1 API, deprecated since 2.0 release, need to update the
- Maven dependency to use the `pulsar-client-1x` artifact instead of `pulsar-client`. Eg.
- ```xml
- <dependency>
- <groupId>org.apache.pulsar</groupId>
- <artifactId>pulsar-client-1x</artifactId>
- <version>2.3.0</version>
- </dependency>
- ```
- * Fixed shading issues with Javadoc bundled in client jars by separating the API in a different
- Maven module [#3309](https://github.com/apache/pulsar/pull/3309)
- * Improve Javadocs [#3592](https://github.com/apache/pulsar/pull/3592)
- * Support specifying multiple hosts in pulsar service url and web url [#3249](https://github.com/apache/pulsar/pull/3249)
- * Automatically discover when partitions on a topic are increased [#3513](https://github.com/apache/pulsar/pull/3513)
- * Added `Client.getPartitionsForTopic()` [#2972](https://github.com/apache/pulsar/pull/2972)
- ([Javadoc](https://pulsar.apache.org/api/client/org/apache/pulsar/client/api/PulsarClient.html#getPartitionsForTopic-java.lang.String-))
- * Added `Consumer.pauseMessageListener()` and `Consumer.resumeMessageListener()` [#2961](https://github.com/apache/pulsar/pull/2961)
- * Removed shading relocations for Circe-checksum and lz4 libraries, to ensure native libraries
- are correctly loaded when using shaded client lib. [#2191](https://github.com/apache/pulsar/pull/2191)
-
-#### Python client
- * Fixed `Message.properties()` [#3595](https://github.com/apache/pulsar/pull/3595)
-
-#### Go client
- * Added `Producer.flush()` to flush all outstanding messages [#3469](https://github.com/apache/pulsar/pull/3469)
- * Support `Consumer.Seek()` [#3478](https://github.com/apache/pulsar/pull/3478)
- * Added `Message.Topic()` [#3346](https://github.com/apache/pulsar/pull/3346)
- * Allow to specify `SubscriptionInitPos` option in `ConsumerOptions` [#3588](https://github.com/apache/pulsar/pull/3588)
- * Added TLS hostname verification [#3580](https://github.com/apache/pulsar/pull/3580)
- * Allow to link statically against `libpulsar.a`[#3488](https://github.com/apache/pulsar/pull/3488)
- * Expose `Producer.LastSequenceID()` and `Message.SequenceID()` [#3416](https://github.com/apache/pulsar/pull/3416)
-
-#### C++ client
- * Enable batching by default when using `sendAsync()` [#2949](https://github.com/apache/pulsar/pull/2949)
- * Allow to specify schema info in Avro format [#3354](https://github.com/apache/pulsar/pull/3354)
- * Added `Producer.flush()` to flush all outstanding messages [#3020](https://github.com/apache/pulsar/pull/3020)
- * Added TLS hostname verification [#2475](https://github.com/apache/pulsar/pull/2475)
- * Allow to specify `SubscriptionInitialPosition` [#3567](https://github.com/apache/pulsar/pull/3567)
- * Added `Message.getTopicName()` [#3326](https://github.com/apache/pulsar/pull/3326)
- * Added `Cosnsumer.receiveAsync()` [#3389](https://github.com/apache/pulsar/pull/3389)
- * Build `libpulsar.a` with all required dependencies [#3488](https://github.com/apache/pulsar/pull/3488)
- * Removed Boost from Pulsar API headers [#3374](https://github.com/apache/pulsar/pull/3374)
-
-#### Adaptors
-
- * Kafka client wrapper, added support for explicit partitioning and custom partitioner [#3462](https://github.com/apache/pulsar/pull/3462)
- * Support config `auto.offset.reset` to Pulsar KafkaConsumer [#3273](https://github.com/apache/pulsar/pull/3273)
- * In Apache Flink connector, added support for Batch Sink API ([2979#](https://github.com/apache/pulsar/pull/2979),
- [#3039](https://github.com/apache/pulsar/pull/3039) and [#3046](https://github.com/apache/pulsar/pull/3046))
- * Added [Java batch examples](https://github.com/apache/pulsar/tree/master/examples/flink/src/main/java/org/apache/flink/batch/connectors/pulsar/example) for Flink adaptor
- * Added [Java streaming examples](https://github.com/apache/pulsar/tree/master/examples/flink/src/main/java/org/apache/flink/streaming/connectors/pulsar/example) for Flink adaptor
- * Added [Scala examples](https://github.com/apache/pulsar/tree/master/examples/flink/src/main/scala/org/apache/flink/batch/connectors/pulsar/example) for Flink adaptor
-
-For a complete list of issues fixed, see
-
-https://github.com/apache/pulsar/milestone/18?closed=1
-
-https://github.com/apache/pulsar/releases/tag/v2.3.0
-
-
-
-### 2.2.1
-
-#### 2018-12-31
-
-This release includes fixes for 2.2.0 release. In particular:
-
-* Fixed issue when proxy HTTP admin API requests Pulsar proxy [#3022](https://github.com/apache/pulsar/pull/3022)
-
-* Fixed `Consumer.unsubscribe()` in Python client library [#3093](https://github.com/apache/pulsar/pull/3093)
-
-* Fixed ZLib decompression in C++ client [#2854](https://github.com/apache/pulsar/pull/2854)
-
-* Fixed Pulsar functions context publish in Python [#2844](https://github.com/apache/pulsar/pull/2844)
-
-For a complete list of issues fixed, see
-
-https://github.com/apache/pulsar/milestone/19?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v2.2.1
-
-
-### 2.2.0
-
-#### 2018-10-24
-
-This is the first release of Pulsar as an Apache Top Level Project
-
-This is a feature release, including several new features, improvements and fixes for issues reported for 2.1.1-incubating.
-
-* [Pulsar Java Client Interceptors](https://github.com/apache/pulsar/pull/2471)
-
-* [Integration of functions and io with schema registry](https://github.com/apache/pulsar/pull/2266)
-
-* [Dead Letter Topic](https://github.com/apache/pulsar/wiki/PIP-22%3A-Pulsar-Dead-Letter-Topic)
-
-* [Flink Source connector](https://github.com/apache/pulsar/pull/2555)
-
-* [JDBC Sink Connector](https://github.com/apache/pulsar/issues/2313)
-
-* [HDFS Sink Connector](https://github.com/apache/pulsar/pull/2409)
-
-* [Google Cloud Storage Offloader](https://github.com/apache/pulsar/issues/2067)
-
-* [Pulsar SQL](https://github.com/apache/pulsar/wiki/PIP-19:-Pulsar-SQL)
-
-
-For a complete list of issues fixed, see
-
-https://github.com/apache/pulsar/milestone/16?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v2.2.0
-
-
-
-
-
-
-
-## Apache incubator
-
-### 2.1.1-incubating
-
-#### 2018-09-17
-
-This release fixes issues reported for 2.1.0-incubating.
-
- * [#2473](https://github.com/apache/incubator-pulsar/pull/2473) - Downgrading ZK to stable version 3.4.13
- * [#2219](https://github.com/apache/incubator-pulsar/pull/2219) - Cpp client: add PatternMultiTopicsConsumerImpl to support regex subscribe
- * [#2387](https://github.com/apache/incubator-pulsar/pull/2387) - Fixed race condition during expansion of concurrent open hash maps
- * [#2348](https://github.com/apache/incubator-pulsar/pull/2348) - Fix NPE when splitting and unloading bundle
- * [#2223](https://github.com/apache/incubator-pulsar/pull/2223) - fix bug in FunctionRuntimeManager involving not cleaning up old invalid assignments
- * [#2367](https://github.com/apache/incubator-pulsar/pull/2367) - [compaction] make topic compaction works with partitioned topic
- * [#2203](https://github.com/apache/incubator-pulsar/pull/2203) - Make sure schema is initialized before the topic is loaded
-
-The complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/17?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v2.1.1-incubating
-
-### 2.1.0-incubating
-
-#### 2018-08-02
-
-This is the seventh release of Apache Pulsar since entering the ASF incubator.
-
-It is a feature release, including several new features and major improvements:
-
-- [Pulsar IO](/docs/en/io-overview/): A connector framework for moving data in and out of Apache Pulsar leveraging [Pulsar Functions](/docs/en/functions-overview/) runtime.
-- A list of [Builtin Connectors](/docs/en/io-connectors):
- - [Aerospike Connector](/docs/en/io-aerospike/)
- - [Cassandra Connector](/docs/en/io-cassandra/)
- - [Kafka Connector](/docs/en/io-kafka/)
- - [Kinesis Connector](/docs/en/io-kinesis/)
- - [RabbitMQ Connector](/docs/en/io-rabbitmq/)
- - [Twitter Firehose Connector](/docs/en/io-twitter/)
-- [Tiered Storage](/docs/en/concepts-tiered-storage/): An extension in Pulsar segment store to offload older segments into long term storage (e.g. HDFS, S3).
- S3 support is supported in 2.1 release.
-- [Stateful function](/docs/en/functions-state/): Pulsar Functions is able to use [State API](/docs/en/functions-state#api) for storing state within Pulsar.
-- Pulsar [Go Client](/docs/en/client-libraries-go/)
-- [Avro](https://github.com/apache/incubator-pulsar/blob/v2.1.0-incubating/pulsar-client-schema/src/main/java/org/apache/pulsar/client/impl/schema/AvroSchema.java) and
- [Protobuf](https://github.com/apache/incubator-pulsar/blob/v2.1.0-incubating/pulsar-client-schema/src/main/java/org/apache/pulsar/client/impl/schema/ProtobufSchema.java) Schema support
-
-The complete list of changes can be found at: https://github.com/apache/incubator-pulsar/milestone/13?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v2.1.0-incubating
-
-### 2.0.1-incubating
-
-#### 2018-06-18
-
-This release fixes issues reported for 2.0.0-rc1-incubating.
-
- * [#1893](https://github.com/apache/incubator-pulsar/pull/1893) - Fixed issues with Python packages on PyPI
- * [#1797](https://github.com/apache/incubator-pulsar/issues/1797) - Proxy doesn't strip the request
- URL for admin requests correctly
- * [#1862](https://github.com/apache/incubator-pulsar/pull/1862) - Fix REST APIs provided by Pulsar proxy
-
-The complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/14?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v2.0.1-incubating
-
-### 1.22.1-incubating
-
-#### 2018-06-18
-
-This is the sixth release of Apache Pulsar since entering the ASF incubator.
-
-This release addresses issues reported in 1.22.0-incubating version.
-
- * [#1660](https://github.com/apache/incubator-pulsar/pull/1660) Deadlock while closing non persistent topic
- * [#1591](https://github.com/apache/incubator-pulsar/pull/1591) Deadlock while closing non shared consumer
- * [#1554](https://github.com/apache/incubator-pulsar/pull/1554) Handle invalid mark delete position at managed cursor
- * [#1262](https://github.com/apache/incubator-pulsar/pull/1262) Broker should not start replicator for root partitioned topic
- * [#1662](https://github.com/apache/incubator-pulsar/pull/1662) NPE when cursor failed to close empty subscription
- * [#1370](https://github.com/apache/incubator-pulsar/pull/1370) Relocate service files for shading pulsar-client-admin module
- * [#1265](https://github.com/apache/incubator-pulsar/pull/1265) Fixed lookup redirect logic on Proxyside
- * [#1428](https://github.com/apache/incubator-pulsar/pull/1428) Handle Race condition in concurrent bundle split
- * [#1817](https://github.com/apache/incubator-pulsar/pull/1817) Fixed mem leak when acknowledging while disconnected from broke
- * [#1851](https://github.com/apache/incubator-pulsar/pull/1851) Fixing resource leak due to open file descriptors in SecurityUtility.
-
-The complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/15?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.22.1-incubating
-
-### 2.0.0-rc1-incubating
-
-#### 2018-05-29
-
-This is the fifth release of Apache Pulsar since entering the ASF incubator and the
-first time we increase major release number.
-
-There are several new features and major improvements:
-
- * [Pulsar functions](http://pulsar.apache.org/docs/latest/functions/overview/): Lightweight
- compute framework
- * New type-safe [Java API](http://pulsar.apache.org/docs/latest/clients/Java/) for producer/consumers
- * [Schema registry](http://pulsar.apache.org/docs/v2.0.0-rc1-incubating/getting-started/ConceptsAndArchitecture/#Schemaregistry-ll008b) — Enforce schema on topics
- * Topic compaction — Out of band compaction of messages to allow consumer to fetch a
- snapshot with last published message for each message key.
- * Upgraded to [Apache BookKeeper](https://bookkeeper.apache.org/) 4.7.0
- * Performance improvements — Up to 3x throughput improvements compared to Pulsar-1.22 and
- 99.9 Pct publish latencies <10ms
- * [Simplified terminology](http://pulsar.apache.org/docs/v2.0.0-rc1-incubating/getting-started/Pulsar-2.0/#Propertiesversustenants-gh1amh) and admin tools
- - Renamed "property" into "tenants"
- - Short topic names: `my-topic`
- - Topics independent of cluster names: `my-tenant/my-namespace/my-topic`
-
-The complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/12?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v2.0.0-rc1-incubating
-
-
-### 1.22.0-incubating
-
-#### 2018-03-06
-
-This is the fourth of Apache Pulsar since entering the ASF incubator.
-
-Major changes in this release include:
-
-#### Features
- * [#896](https://github.com/apache/incubator-pulsar/pull/896) PIP-7 Introduce Failure-domain and Anti-affinity-namespace group
- * [#1031](https://github.com/apache/incubator-pulsar/pull/1031) Add optional key/value metadata to producers/consumers
- * [#1129](https://github.com/apache/incubator-pulsar/pull/1129) Added end to end encryption in C++ client
- * [#1151](https://github.com/apache/incubator-pulsar/pull/1151) Added REST handler to create a subscription on a topic
- * [#1087](https://github.com/apache/incubator-pulsar/pull/1087) Add basic authentication plugin
- * [#1200](https://github.com/apache/incubator-pulsar/pull/1200) Add pluggable authorization mechanism
- * [#1208](https://github.com/apache/incubator-pulsar/pull/1208) Add hostname-verification at client tls connection
- * [#950](https://github.com/apache/incubator-pulsar/pull/950) Provided an DCOS Universe package for pulsar
- * [#1046](https://github.com/apache/incubator-pulsar/pull/1046) Introduce config to skip non-recoverable data-ledger
- * [#899](https://github.com/apache/incubator-pulsar/pull/899) Add subscription auth mode by prefix
- * [#1135](https://github.com/apache/incubator-pulsar/pull/1135) Added infinite time retention configuration option
-
-#### Enhancements
-
- * [#1094](https://github.com/apache/incubator-pulsar/pull/1094) Include BoringSSL native implementation for faster TLS
- * [#1204](https://github.com/apache/incubator-pulsar/pull/1204) Reduce size of buffer used to assemble batches
- * [#930](https://github.com/apache/incubator-pulsar/pull/930) Perform async DNS resolution
- * [#1124](https://github.com/apache/incubator-pulsar/pull/1124) Support Pulsar proxy from C++/Python client library
- * [#1012](https://github.com/apache/incubator-pulsar/pull/1012) Made load shedding for load manager Dynamically configurable
- * [#962](https://github.com/apache/incubator-pulsar/pull/962) Raw Reader for Pulsar Topics
- * [#941](https://github.com/apache/incubator-pulsar/pull/941) Upgraded Jackson version
- * [#1002](https://github.com/apache/incubator-pulsar/pull/1002), [#1169](https://github.com/apache/incubator-pulsar/pull/1169), [#1168](https://github.com/apache/incubator-pulsar/pull/1168) Making Pulsar Proxy more secure
- * [#1029](https://github.com/apache/incubator-pulsar/pull/1029) Fix MessageRouter hash inconsistent on C++/Java client
-
-#### Fixes
-
- * [#1153](https://github.com/apache/incubator-pulsar/pull/1153) Fixed increase partitions on a partitioned topic
- * [#1195](https://github.com/apache/incubator-pulsar/pull/1195) Ensure the checksum is not stripped after validation in the broker
- * [#1203](https://github.com/apache/incubator-pulsar/pull/1203) Use duplicates when writing from ByteBuf pair to avoid multiple threads issues
- * [#1210](https://github.com/apache/incubator-pulsar/pull/1210) Cancel keep-alive timer task after the proxy switch to TCP proxy
- * [#1170](https://github.com/apache/incubator-pulsar/pull/1170) Upgrade BK version: BK-4.3.1.91-yahoo (fix: stats + DoubleByteBuf)
- * [#875](https://github.com/apache/incubator-pulsar/pull/875) Bug fixes for Websocket proxy
-
-The complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/11?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.22.0-incubating
-
-### 1.21.0-incubating
-
-#### 2017-12-17
-
-This is the third of Apache Pulsar since entering the ASF incubator.
-
-Major changes in this release include:
-
- * [#689](https://github.com/apache/incubator-pulsar/pull/689) Upgrade to Netty 4.1
- * [#846](https://github.com/apache/incubator-pulsar/pull/846) Publish the shaded pulsar-client as the default dependency
- * [#832](https://github.com/apache/incubator-pulsar/pull/832) [#833](https://github.com/apache/incubator-pulsar/pull/833) [#849](https://github.com/apache/incubator-pulsar/pull/849) [#852](https://github.com/apache/incubator-pulsar/pull/852) Enhancements to Kafka API wrapper to have it work with Kafka's own benchmark tools
- * [#836](https://github.com/apache/incubator-pulsar/pull/836) Fix to C++ partitioned consumer client
- * [#822](https://github.com/apache/incubator-pulsar/pull/822) [#826](https://github.com/apache/incubator-pulsar/pull/826) Several fixes and improvements related to the namespace bundles
- * [#848](https://github.com/apache/incubator-pulsar/pull/848) Allow consumer to seek to message id from within Pulsar client
- * [#903](https://github.com/apache/incubator-pulsar/pull/903) PIP-8: Scale Pulsar beyond 1M topics
- * [#824](https://github.com/apache/incubator-pulsar/pull/824) Enable secure replication over TLS
- * [#923](https://github.com/apache/incubator-pulsar/pull/923) Upgrade to bk-4.3.1.83-yahoo to expose journalSyncData option
- * [#807](https://github.com/apache/incubator-pulsar/pull/807) Prevent message duplication when active consumer is changed
-
-Complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/10?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.21.0-incubating
-
-### 1.20.0-incubating
-
-#### 2017-08-08
-
-This is the second of Apache Pulsar since entering the ASF incubator.
-
-Major changes in this release include:
-
- * [#620](https://github.com/apache/incubator-pulsar/pull/620) [#717](https://github.com/apache/incubator-pulsar/pull/717) [#718](https://github.com/apache/incubator-pulsar/pull/718) Reader API support for C++, Python & Websocket Proxy
- * [#634](https://github.com/apache/incubator-pulsar/pull/634) Added [Message dispatch throttling](https://github.com/apache/incubator-pulsar/wiki/PIP-3:-Message-dispatch-throttling)
- * [#731](https://github.com/apache/incubator-pulsar/pull/731) Added [End to End Encryption](https://github.com/apache/incubator-pulsar/wiki/PIP-4:-Pulsar-End-to-End-Encryption)
- * [#732](https://github.com/apache/incubator-pulsar/pull/732) Support for [Event Time](https://github.com/apache/incubator-pulsar/wiki/PIP-5:-Event-time) for messages
- * [#751](https://github.com/apache/incubator-pulsar/pull/751) Guaranteed [Deduplication of Messages](https://github.com/apache/incubator-pulsar/wiki/PIP-6:-Guaranteed-Message-Deduplication)
- * [#761](https://github.com/apache/incubator-pulsar/pull/761) Kafka API wrapper for Pulsar client library
-
-Complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/9?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.20.0-incubating
-
-### 1.19.0-incubating
-
-#### 2017-08-08
-
-This is the first of Apache Pulsar since entering the ASF incubator.
-
-Major changes included in this release are:
-
- * [#524](https://github.com/apache/incubator-pulsar/pull/524) Moved APIs from `com.yahoo.pulsar` to `org.apache.pulsar`
- * [#548](https://github.com/apache/incubator-pulsar/pull/548) Added stateless [Pulsar proxy](https://github.com/apache/incubator-pulsar/wiki/PIP-1:-Pulsar-Proxy)
- * [#538](https://github.com/apache/incubator-pulsar/pull/538) Support for [non-persistent topics](https://github.com/apache/incubator-pulsar/wiki/PIP-2:-Non-Persistent-topic)
- * [#587](https://github.com/apache/incubator-pulsar/pull/587) Upgraded RocksDB to comply with ASF policy
- * [#507](https://github.com/apache/incubator-pulsar/pull/507) Instrumentation of ZooKeeper client to expose metrics
- * Various fixes for TLS auth in WebSocket proxy
-
-Complete list of changes can be found at:
-https://github.com/apache/incubator-pulsar/milestone/8?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.19.0-incubating
-
-## Pre-Apache
-
-### 1.18
-
-#### 2017-06-17
-
-Main changes:
- * [#325](https://github.com/apache/incubator-pulsar/pull/325) Add Modular load manager documentation
- * [#329](https://github.com/apache/incubator-pulsar/pull/329) Add api to get list of partitioned topics
- * [#296](https://github.com/apache/incubator-pulsar/pull/296) Added spark streaming custom receiver for pulsar
- * [#317](https://github.com/apache/incubator-pulsar/pull/317) HTTP lookups for c++ client lib
- * [#332](https://github.com/apache/incubator-pulsar/pull/332) Fix: Modular load manager bug fixes
- * [#352](https://github.com/apache/incubator-pulsar/pull/352) Fix: Delete local-policies and invalidate cache when namespace is dele
- * [#356](https://github.com/apache/incubator-pulsar/pull/356) Fix: WebSocket TLS connection bug
- * [#363](https://github.com/apache/incubator-pulsar/pull/363) Use binary protocol lookup for connection between WebSocket proxy and broker
- * [#375](https://github.com/apache/incubator-pulsar/pull/375) Fix: Bug fixes on deadlock while topic loading failure
- * [#376](https://github.com/apache/incubator-pulsar/pull/376) Fix: Avoid incrementing unack-msg count for non-shared sub and not show it on stats
- * [#329](https://github.com/apache/incubator-pulsar/pull/329) Fix: Handle zkCache failures
- * [#387](https://github.com/apache/incubator-pulsar/pull/387) Pass client library version to broker and show on stats
- * [#345](https://github.com/apache/incubator-pulsar/pull/345) Add load shedding strategy
- * [#393](https://github.com/apache/incubator-pulsar/pull/393) Change default mark-delete rate limit from 10s to 1s
- * [#392](https://github.com/apache/incubator-pulsar/pull/392) Upgrade to netty-4.0.46
- * [#366](https://github.com/apache/incubator-pulsar/pull/366) NonDurable cursor for managed ledger
- * [#371](https://github.com/apache/incubator-pulsar/pull/371) Introduce topic reader in client API
- * [#341](https://github.com/apache/incubator-pulsar/pull/341) Add stats and monitoring for websocket proxy
- * [#299](https://github.com/apache/incubator-pulsar/pull/299) Add api to increase partitions of existing non-global partitioned-topic
- * [#294](https://github.com/apache/incubator-pulsar/pull/294) Add endpoint to fetch stats for Prometheus
- * [#440](https://github.com/apache/incubator-pulsar/pull/440) Enable PulsarAdmin to trust multiple certificates
- * [#442](https://github.com/apache/incubator-pulsar/pull/442) Fix: Remove broker weights for ModularLoadManager
- * [#446](https://github.com/apache/incubator-pulsar/pull/446) Fix: Recover cursor with correct readPosition and replay unackedMessages
- * [#441](https://github.com/apache/incubator-pulsar/pull/441) Set Block If queue full to false by default
- * [#447](https://github.com/apache/incubator-pulsar/pull/447) Fix: DoubleByteBuf to send large size messages in TLS mode
- * [#443](https://github.com/apache/incubator-pulsar/pull/443) Add topic termination option
- * [#436](https://github.com/apache/incubator-pulsar/pull/436) Added ZooKeeper instrumentation for enhanced stats
- * [#448](https://github.com/apache/incubator-pulsar/pull/448) WebSocket proxy should not make a consumer/producer when authorization is failed
- * [#443](https://github.com/apache/incubator-pulsar/pull/443) Add Docker images definition and instruction to deploy on Kubernetes
- * [#474](https://github.com/apache/incubator-pulsar/pull/474) Fix: message rate out with batches to count messages/s
- * [#482](https://github.com/apache/incubator-pulsar/pull/482) Allow client(producer/consumer) to check topic stats
- * [#468](https://github.com/apache/incubator-pulsar/pull/468) Pulsar Python client library
- * [#386](https://github.com/apache/incubator-pulsar/pull/386) Increment bookkeeper version to 4.3.1.69-yahoo
-
-Full list of changes: https://github.com/yahoo/pulsar/milestone/7?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.18
-
-### 1.17.5
-
-#### 2017-05-02
-
- * [#343](https://github.com/apache/incubator-pulsar/pull/343) Fix ModularLoadManager to select broker from current available-broker list
- * [#384](https://github.com/apache/incubator-pulsar/pull/384) Fix Send replay entries read callback from background thread, to avoid recursive stack calls
- * [#390](https://github.com/apache/incubator-pulsar/pull/390) Fix Shaded AsyncHttpClient in pulsar client
- * [#374](https://github.com/apache/incubator-pulsar/pull/374) Fix Remove Exceptionally Completed Topic Futures
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.17.5
-
-### 1.17.4
-
-#### 2017-04-25
-
- * [#362](https://github.com/apache/incubator-pulsar/pull/362) Fix add timeout on blocking ZookeeperCache get call
- * [#375](https://github.com/apache/incubator-pulsar/pull/375) Fix possible deal lock on topic loading if broker fails to get MLConfiguration from zk
- * [#377](https://github.com/apache/incubator-pulsar/pull/377) Fix zkCache error handling and zk-callback processing on separate dedicated thread
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.17.4
-
-### 1.17.3
-
-#### 2017-04-20
-
- * [#367](https://github.com/apache/incubator-pulsar/pull/367) Fix dispatcher correctly finds available consumer from list of shared-subscription consumers
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.17.3
-
-### 1.17.2
-
-#### 2017-04-06
-
- * [#327](https://github.com/apache/incubator-pulsar/pull/327) Create znode for dynamic configuration if not present
- * [#336](https://github.com/apache/incubator-pulsar/pull/336) Fix prevent creation of topic when bundle is disable
- * [#338](https://github.com/apache/incubator-pulsar/pull/338) Fix deserialize load report based on load-manager
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.17.2
-
-### 1.17.1
-
-#### 2017-03-30
-
- * [#326](https://github.com/apache/incubator-pulsar/pull/326) Fix memory leak while duplicating entry data from existing entry
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.17.1
-
-### 1.17
-
-#### 2017-03-30
-
-Main changes:
-
- * [#188](https://github.com/apache/incubator-pulsar/pull/188) Pulsar Dashboard
- * [#276](https://github.com/apache/incubator-pulsar/pull/276) Broker persist individually deleted messages
- * [#282](https://github.com/apache/incubator-pulsar/pull/282) Support binary format to persist managed-ledger info in ZK
- * [#292](https://github.com/apache/incubator-pulsar/pull/292) Added REST and CLI tool to expose ManagedLedger metadata
- * [#285](https://github.com/apache/incubator-pulsar/pull/285) Add documentation in japanese
- * [#178](https://github.com/apache/incubator-pulsar/pull/178) Add Athenz authentication plugin
- * [#186](https://github.com/apache/incubator-pulsar/pull/186) Update Broker service configuration dynamically
- * [#215](https://github.com/apache/incubator-pulsar/pull/215) Fix Broker disconnects unsupported batch-consumer on batch-message topic
- * [#165](https://github.com/apache/incubator-pulsar/pull/165) Message dispatching on consumer priority-level
- * [#303](https://github.com/apache/incubator-pulsar/pull/303) Introduce new load manager implementation
- * [#306](https://github.com/apache/incubator-pulsar/pull/306) Add topic loading throttling at broker
- * [#302](https://github.com/apache/incubator-pulsar/pull/302) Update BK version to 4.3.1.60-yahoo to include: 64bit ledger-ids, fix: memory leak on read-only bookie and datasketches concurrency issue
- * [#216](https://github.com/apache/incubator-pulsar/pull/216) Binary proto api to get consumer stats
- * [#225](https://github.com/apache/incubator-pulsar/pull/225) Server lookup throttling
- * [#182](https://github.com/apache/incubator-pulsar/pull/182) Client lookup request throttling and server-error handling
- * [#265](https://github.com/apache/incubator-pulsar/pull/265) Fix client handling on http server error
- * [#204](https://github.com/apache/incubator-pulsar/pull/204) Fix discovery service redirection
- * [#311](https://github.com/apache/incubator-pulsar/pull/311) Fix netty package conflict at binary distribution
- * [#221](https://github.com/apache/incubator-pulsar/pull/221) Fixed race condition on client reconnection logic
- * [#239](https://github.com/apache/incubator-pulsar/pull/239) Fix replicator handling on closed cursor
- * [#318](https://github.com/apache/incubator-pulsar/pull/318) GC improvements: Recyclable entry and reduce collection on stats generation
-
-Full list of changes: https://github.com/apache/incubator-pulsar/milestone/3?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.17
-
-### 1.16.5
-
-#### 2017-03-10
-
- * [#311](https://github.com/apache/incubator-pulsar/pull/311) Exclude netty individual jars from binary distribution. This issue was causing binary distribution to have conflicting netty dependencies.
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.16.5
-
-### 1.16.4
-
-#### 2017-03-10
-
- * [#265](https://github.com/apache/incubator-pulsar/pull/265) Fix client closes http-connection on internal-server error
- * [#283](https://github.com/apache/incubator-pulsar/pull/283) Fix recycle keep alive command-object properly
- * [#284](https://github.com/apache/incubator-pulsar/pull/284) Reduce usage of collections in managed-ledger metrics-generation to reduce GC impact
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.16.4
-
-### 1.16.3
-
-#### 2017-03-01
-
- * [#275](https://github.com/apache/incubator-pulsar/pull/275) Fix for Infinite loop in PersistentReplicator.startProducer()
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.16.3
-
-### 1.16.2
-
-#### 2017-02-24
-
- * [#250](https://github.com/apache/incubator-pulsar/pull/250) : Disconnect consumers without closing dispatcher on cursor-reset
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.16.2
-
-### 1.16.1
-
-#### 2017-02-24
-
- * [#221](https://github.com/apache/incubator-pulsar/pull/221) Fixed race condition while creating client connection
- * [#223](https://github.com/apache/incubator-pulsar/pull/223) Fixed broker's direct memory usage count
- * [#220](https://github.com/apache/incubator-pulsar/pull/220) Fixed stuck replicator producer on backlog quota exception
- * [#239](https://github.com/apache/incubator-pulsar/pull/239) Fixed replicator stop reading on already closed cursor
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.16.1
-
-### 1.16
-
-#### 2017-02-02
-
-Main changes:
- * [#76](https://github.com/apache/incubator-pulsar/pull/76) Async Zookeeper cache implementation
- * [#105](https://github.com/apache/incubator-pulsar/pull/105) Support topic lookup using pulsar binary protocol
- * [#164](https://github.com/apache/incubator-pulsar/pull/164) Fixed handling failure of unloading namespace bundle
- * [#166](https://github.com/apache/incubator-pulsar/pull/166) Support websocket proxy deployment without passing globalZK
- * [#161](https://github.com/apache/incubator-pulsar/pull/161) Fixed avoiding creation of duplicate replicator
- * [#160](https://github.com/apache/incubator-pulsar/pull/160) Add support uri encoding on broker admin rest api
- * [#143](https://github.com/apache/incubator-pulsar/pull/143) Include DataSketches metrics provider for bookie stats
- * [#127](https://github.com/apache/incubator-pulsar/pull/127) Updated BK-4.3.1.45/47-yahoo to include bookie/bookkeeper-client bug-fixes and DataSketch metrics provider
- * [#124](https://github.com/apache/incubator-pulsar/pull/124) Consumer-stats: Add blockedConsumer flag
- * [#95](https://github.com/apache/incubator-pulsar/pull/95) Consumer-stats: Add message redelivery rate
- * [#123](https://github.com/apache/incubator-pulsar/pull/123) Fixed Batch message replication
- * [#106](https://github.com/apache/incubator-pulsar/pull/106) Fixed Partitioned consumer should avoid blocking call to fill shared queue
- * [#139](https://github.com/apache/incubator-pulsar/pull/139) Support online consumer cursor reset
- * [#187](https://github.com/apache/incubator-pulsar/pull/187) Support custom advertised address in pulsar standalone
-
-Full list of changes: https://github.com/yahoo/pulsar/milestone/2?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.16
-
-### 1.15.7
-
-#### 2017-01-25
-
- * [#174](https://github.com/apache/incubator-pulsar/pull/174) Handling bundle unloading failure
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.7
-
-### 1.15.6
-
-#### 2017-01-20
-
- * [#171](https://github.com/apache/incubator-pulsar/pull/171) Fix: Consumer redelivery should not wipeout availablePermits
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.6
-
-### 1.15.5
-
-#### 2017-01-03
-
- * [#159](https://github.com/apache/incubator-pulsar/pull/159) Fix: Replicator-cleanup while closing replicator at broker.
- * [#160](https://github.com/apache/incubator-pulsar/pull/160) Fix: Http lookup for topic with special character
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.5
-
-### 1.15.4
-
-#### 2016-12-14
-
- * [#146](https://github.com/apache/incubator-pulsar/pull/146) Fix: Partitioned consumer can consume messages with receiverQueueSize 1.
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.4
-
-### 1.15.3
-
-#### 2016-12-13
-
- * [#145](https://github.com/apache/incubator-pulsar/pull/145) Fixed issue Partitioned-consumer aggregate messages without blocking internal listener thread
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.3
-
-### 1.15.2
-
-#### 2016-11-03
-
- * [#102](https://github.com/apache/incubator-pulsar/pull/102) Fixed issue with message dispatching while message-replay at broker
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.2
-
-### 1.15.1
-
-#### 2016-10-27
-
- * [#89](https://github.com/apache/incubator-pulsar/pull/89) Fixed issue with replication in a mixed
- environment with 1.14 and 1.15 brokers
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15.1
-
-### 1.15
-
-#### 2016-10-18
-
-- [#39](https://github.com/apache/incubator-pulsar/pull/39) Updated BookKeeper version to 4.3.1.41-yahoo to include bookie storage improvements
-- [#17](https://github.com/apache/incubator-pulsar/pull/17) Fixed memory leak in stats generation buffer rollover
-- [#27](https://github.com/apache/incubator-pulsar/pull/27) Fixed issues with discovery service component when HTTPS is enabled
-- [#43](https://github.com/apache/incubator-pulsar/pull/43) Add end-to-end crc32c checksum verification on message header and payload, rather than just payload. Support for intel hardware instructions to speed up computation.
-- [#26](https://github.com/apache/incubator-pulsar/pull/26) Added ability to configure the address that the broker uses to advertise itself. Needed in cases where the public hostname/ip is different than the machine interface ip (eg: in AWS EC2 instances).
-- [#38](https://github.com/apache/incubator-pulsar/pull/38) Prevent message-replay of already acknowledged messages
-- [#51](https://github.com/apache/incubator-pulsar/pull/51) Per message unacknowledged redelivery. When ack-timeout is configured, only request redelivery of messages that effectively have the timeout expired, instead of all the messages dispatched to the consumer.
-- [#48](https://github.com/apache/incubator-pulsar/pull/48) Add unacknowledged messages threshold to stop delivery to consumer that are not acknowledging messages
-- [#59](https://github.com/apache/incubator-pulsar/pull/59) Added admin method to do a one-time messages time expiration for a given subscription (independently from the TTL configured at the namespace level)
-
-Full list of changes: https://github.com/apache/incubator-pulsar/milestone/1?closed=1
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.15
-
-### 1.14
-
-#### 2016-08-31
-
-First public release of Pulsar
-
-https://github.com/apache/incubator-pulsar/releases/tag/v1.14