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Posted to notifications@skywalking.apache.org by wu...@apache.org on 2020/03/17 14:20:24 UTC

[skywalking] branch master updated: Add 7.0.0 changelog (#4531)

This is an automated email from the ASF dual-hosted git repository.

wusheng pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/skywalking.git


The following commit(s) were added to refs/heads/master by this push:
     new 9333bf9  Add 7.0.0 changelog (#4531)
9333bf9 is described below

commit 9333bf9cec1e07b6c29e63986dc1e36eae2db9ca
Author: 吴晟 Wu Sheng <wu...@foxmail.com>
AuthorDate: Tue Mar 17 22:20:14 2020 +0800

    Add 7.0.0 changelog (#4531)
---
 CHANGES.md | 544 ++++++-------------------------------------------------------
 1 file changed, 54 insertions(+), 490 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index f24c436..b288506 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,512 +2,76 @@ Changes by Version
 ==================
 Release Notes.
 
-6.6.0
+7.0.0
 ------------------
 
 #### Project
-- [**IMPORTANT**] Local span and exit span are not treated as endpoint detected at client and local. Only entry span is the endpoint. Reduce the load of register and memory cost.
-* Support MiniKube, Istio and SkyWalking on K8s deployment in CI.
-* Support Windows and MacOS build in GitHub Action CI.
-* Support ElasticSearch 7 in official dist.
-* Hundreds plugin cases have been added in GitHub Action CI process.
+* SkyWalking discards the supports of JDK 1.6 and 1.7 on the java agent side. The minimal requirement of JDK is JDK8.
+* Support method performance profile.
+* Provide new E2E test framework.
+* Remove AppVeyor from the CI, use GitHub action only.
+* Provide new plugin test tool.
+* Don't support SkyWalking v5 agent in-wire and out-wire protocol. v6 is required.
 
 #### Java Agent
-* Remove the local/exit span operation name register mechanism.
-* Add plugin for JDK Threading classes.
-* Add plugin for Armeria.
-* Support set operation name in async span.
-* Enhance webflux plugin, related to Spring Gateway plugin. Webflux plugin is in optional, due to JDK8 required.
-* Fix a possible deadlock.
-* Fix NPE when OAL scripts are different in different OAP nodes, mostly in upgrading stage.
-* Fix bug about wrong peer in ES plugin.
-* Fix NPE in Spring plugin.
-* Fix wrong class name in Dubbo 2.7 conflict patch.
-* Fix spring annotation inheritance problem.
+* Add lazy injection API in the agent core.
+* Support Servlet 2.5 in the Struts plugin.
+* Fix RestTemplate plugin ClassCastException in the Async call.
+* Add Finagle plugin.
+* Add test cases of H2 and struts.
+* Add Armeria 0.98 plugin.
+* Fix ElasticSearch plugin bug.
+* Fix EHCache plugin bug.
+* Fix a potential I/O leak.
+* Support Oracle SID mode.
+* Update Byte-buddy core.
+* Performance tuning: replace AtomicInteger with AtomicIntegerFieldUpdater.
+* Add AVRO plugin.
+* Update to JDK 1.8
+* Optimize the ignore plugin.
+* Enhance the gRPC plugin.
+* Add Kotlin Coroutine plugin.
+* Support HTTP parameter collection in Tomcat and SpringMVC plugin.
+* Add @Tag annotation in the application toolkit.
+* Move Lettuce into the default plugin list.
+* Move Webflux into the default plugin list.
+* Add HttpClient 3.x plugin.
 
 #### OAP-Backend
-* Remove the local/exit span operation name register mechanism.
-* Remove client side endpoint register in service mesh.
-* Service instance dependency and related metrics.
-* Support `min` func in OAL
-* Support `apdex` func in OAL
-* Support custom ES config setting at the index level.
-* Envoy ALS proto upgraded.
-* Update JODA lib as bugs in UTC +13/+14.
-* Support topN sample period configurable.
-* Ignore no statement DB operations in slow SQL collection.
-* Fix bug in docker-entrypoint.sh when using MySQL as storage
+* Support InfluxDB as a new storage option.
+* Add `selector` in the `application.yml`. Make the provider activation more flexible through System ENV.
+* Support sub-topology map query.
+* Support gRPC SSL.
+* Support HTTP protocol for agent.
+* Support Nginx LUA agent.
+* Support skip the instance relationship analysis if some agents doesn't have upstream address, currently for LUA agent.
+* Support metrics entity name in the storage. Optional, default OFF.
+* Merge the HOUR and DAY metrics into MINUTE in the ElasticSearch storage implementation. Reduce the payload for ElasticSearch server.
+* Support change detection mechanism in DCS.
+* Support Daily step in the ElasticSearch storage implementation for low traffic system.
+* Provide profile export tool.
+* Support alarm gRPC hook.
+* Fix PHP language doesn't show up on the instance page.
+* Add more comments in the source codes.
+* Add a new metrics type, multiple linears.
+* Fix thread concurrency issue in the alarm core.
 
 #### UI
-* Service topology enhancement. Dive into service, instance and endpoint metrics on topo map.
-* Service instance dependency view and related metrics.
-* Support using URL parameter in trace query page.
-* Support apdex score in service page.
-* Add service dependency metrics into metrics comparison.
-* Fix alarm search not working.
-
-#### Document
-* Update user list and user wall.
-* Add document link for CLI.
-* Add deployment guide of agent in Jetty case.
-* Modify Consul cluster doc.
-* Add document about injecting traceId into the logback with logstack in JSON format.
-* ElementUI license and dependency added.
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/37?closed=1)
-
-6.5.0
-------------------
-
-#### Project
-- TTL E2E test (#3437)
-- Test coverage is back in pull request check status (#3503)
-- Plugin tests begin to be migrated into main repo, and is in process. (#3528, #3756, #3751, etc.)
-- Switch to SkyWalking CI (exclusive) nodes (#3546)
-- MySQL storage e2e test. (#3648)
-- E2E tests are verified in multiple jdk versions, jdk 8, 9, 11, 12 (#3657)
-- Jenkins build jobs run only when necessary (#3662)
-
-#### OAP-Backend
-- Support dynamically configure alarm settings (#3557)
-- Language of instance could be null (#3485)
-- Make query max window size configurable. (#3765)
-- Remove two max size 500 limit. (#3748)
-- Parameterize the cache size. (#3741)
-- ServiceInstanceRelation set error id (#3683)
-- Makes the scope of alarm message more semantic. (#3680)
-- Add register persistent worker latency metrics (#3677)
-- Fix more reasonable error (#3619)
-- Add GraphQL getServiceInstance instanceUuid field. (#3595)
-- Support namespace in Nacos cluster/configuration (#3578)
-- Instead of datasource-settings.properties, use application.yml for MySQLStorageProvider (#3564)
-- Provide consul dynamic configuration center implementation (#3560)
-- Upgrade guava version to support higher jdk version (#3541)
-- Sync latest als from envoy api (#3507)
-- Set telemetry instanced id for Etcd and Nacos plugin (#3492)
-- Support timeout configuration in agent and backend. (#3491)
-- Make sure the cluster register happens before streaming process. (#3471)
-- Agent supports custom properties. (#3367)
-- Miscellaneous bug fixes (#3567)
-
-#### UI 
-- Feature: node detail display in topo circle-chart view.
-- BugFix: the jvm-maxheap & jvm-maxnonheap is -1, free is no value
-- Fix bug: time select operation not in effect 
-- Fix bug: language initialization failed 
-- Fix bug: not show instance language
-- Feature: support the trace list display export png
-- Feature: Metrics comparison view
-- BugFix: Fix dashboard top throughput copy
-
-#### Java Agent
-- Spring async scenario optimize (#3723)
-- Support log4j2 AsyncLogger (#3715)
-- Add config to collect PostgreSQL sql query params (#3695)
-- Support namespace in Nacos cluster/configuration (#3578)
-- Provide plugin for ehcache 2.x (#3575)
-- Supporting RequestRateLimiterGatewayFilterFactory (#3538)
-- Kafka-plugin compatible with KafkaTemplate (#3505)
-- Add pulsar apm plugin (#3476)
-- Spring-cloud-gateway traceId does not transmit #3411 (#3446)
-- Gateway compatible with downstream loss (#3445)
-- Provide cassandra java driver 3.x plugin (#3410)
-- Fix SpringMVC4 NoSuchMethodError (#3408)
-- BugFix: endpoint grouping rules may be not unique (#3510)
-- Add feature to control the maximum agent log files (#3475)
-- Agent support custom properties. (#3367)
-- Add Light4j plugin (#3323)
-
-#### Document
-- Remove travis badge (#3763)
-- Replace user wall to typical users in readme page (#3719)
-- Update istio docs according latest istio release (#3646)
-- Use chart deploy sw docs (#3573)
-- Reorganize the doc, and provide catalog (#3563)
-- Committer vote and set up document. (#3496)
-- Update als setup doc as istio 1.3 released (#3470)
-- Fill faq reply in official document. (#3450)
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/36?closed=1)
-
-
-6.4.0
-------------------
-
-#### Project
-* Highly recommend to upgrade due to Pxx metrics calculation bug.
-* Make agent working in JDK9+ Module system.
-
-#### Java Agent
-* Make agent working in JDK9+ Module system.
-* Support Kafka 2.x client libs.
-* Log error in OKHTTP OnFailure callback.
-* Support injecting traceid into logstack appender in logback.
-* Add OperationName(including endpoint name) length max threshold.
-* Support using Regex to group operation name. 
-* Support Undertow routing handler.
-* RestTemplate plugin support operation name grouping.
-* Fix ClassCastException in Webflux plugin.
-* Ordering zookeeper server list, to make it better in topology.
-* Fix a Dubbo plugin incompatible issue.
-* Fix MySQL 5 plugin issue.
-* Make log writer cached.
-* Optimize Spring Cloud Gateway plugin
-* Fix and improve gRPC reconnect mechanism.
-* Remove Disruptor dependency from agent.
-
-#### Backend
-* Fix Pxx(p50,p75,p90,p95,p99) metrics func bug.(Critical)
-* Support Gateway in backend analysis, even when it doesn't have suitable language agent.
-* Support using HTTPs SSL accessing ElasticSearch storage.
-* Support Zookeeper ACL.
-* Make alarm records listed in order.
-* Fix Pxx data persistence failure in some cases.
-* Fix some bugs in MySQL storage.
-* Setup slow SQL length threshold.
-* Fix TTL settings is not working as expected.
-* Remove scope-meta file.
-
-#### UI
-* Enhance alarm page layout.
-* Support trace tree chart resize.
-* Support trace auto completion when partial traces abandoned somehow.
-* Fix dashboard endpoint slow chart.
-* Add radial chart in topology page.
-* Add trace table mode.
-* Fix topology page bug.
-* Fix calender js bug.
-* Fix "The "topo-services" component did not update the data in time after modifying the time range on the topology page.
-
-#### Document
-* Restore the broken Istio setup doc.
-* Add etcd config center document.
-* Correct span_limit_per_segment default value in document.
-* Enhance plugin develop doc.
-* Fix error description in build document.
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/35?closed=1)
-
-
-6.3.0
-------------------
-
-#### Project
-* e2e tests have been added, and verify every pull request.
-* Use ArrayList to replace LinkedList in DataCarrier for much better performance.
-* Add plugin instrumentation definition check in CI.
-* DataCarrier performance improvement by avoiding false-sharing.
-
-#### Java Agent
-* Java agent supports JDK 9 - 12, but don't support Java Module yet.
-* Support JVM class auto instrumentation, cataloged as bootstrap plugin.
-* Support JVM HttpClient and HttpsClient plugin.[Optional]
-* Support backend upgrade without rebooting required.
-* Open Redefine and Retransform by other agents.
-* Support Servlet 2.5 in Jetty, Tomcat and SpringMVC plugins.
-* Support Spring @Async plugin.
-* Add new config item to restrict the length of span#peer.
-* Refactor `ContextManager#stopSpan`.
-* Add gRPC timeout.
-* Support Logback AsyncAppender print tid 
-* Fix gRPC reconnect bug.
-* Fix trace segment service doesn't report `onComplete`.
-* Fix wrong logger class name.
-* Fix gRPC plugin bug.
-* Fix `ContextManager.activeSpan()` API usage error.
-
-#### Backend
-* Support agent reset command downstream when the storage is erased, mostly because of backend upgrade.
-* Backend stream flow refactor.
-* High dimensionality metrics(Hour/Day/Month) are changed to lower priority, to ease the storage payload.
-* Add OAP metrics cache to ease the storage query payload and improve performance.
-* Remove DataCarrier in trace persistent of ElasticSearch storage, by leveraging the elasticsearch bulk queue.
-* OAP internal communication protocol changed. Don't be compatible with old releases.
-* Improve ElasticSearch storage bulk performance.
-* Support etcd as dynamic configuration center.
-* Simplify the PxxMetrics and ThermodynamicMetrics functions for better performance and GC.
-* Support JVM metrics self observability.
-* Add the new OAL runtime engine.
-* Add gRPC timeout.
-* Add Charset in the alarm web hook.
-* Fix buffer lost.
-* Fix dirty read in ElasticSearch storage.
-* Fix bug of cluster management plugins in un-Mixed mode.
-* Fix wrong logger class name.
-* Fix delete bug in ElasticSearch when using namespace.
-* Fix MySQL TTL failure.
-* Totally remove `IDs can't be null` log, to avoid misleading.
-* Fix provider has been initialized repeatedly.
-* Adjust providers conflict log message.
-* Fix using wrong gc time metrics in OAL.
-
-#### UI
-* Fix refresh is not working after endpoint and instance changed.
-* Fix endpoint selector but.
-* Fix wrong copy value in slow traces.
-* Fix can't show trace when it is broken partially(Because of agent sampling or fail safe).
-* Fix database and response time graph bugs.
-
-#### Document
-* Add bootstrap plugin development document.
-* Alarm documentation typo fixed.
-* Clarify the Docker file purpose.
-* Fix a license typo.
-
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/34?closed=1)
-
-
-6.2.0
-------------------
-
-#### Project
-* ElasticSearch implementation performance improved, and CHANGED totally. Must delete all existing indexes to do upgrade.
-* CI and Integration tests provided by ASF INFRA.
-* Plan to enhance tests including e2e, plugin tests in all pull requests, powered by ASF INFRA.
-* DataCarrier queue write index controller performance improvement. 3-5 times quicker than before.
-* Add windows compile support in CI.
-
-#### Java Agent
-* Support collect SQL parameter in MySQL plugin.[Optional]
-* Support SolrJ plugin.
-* Support RESTEasy plugin.
-* Support Spring Gateway plugin for 2.1.x[Optional]
-* TracingContext performance improvement.
-* Support Apache ShardingSphere(incubating) plugin.
-* Support `span#error` in application toolkit.
-* Fix OOM by empty stack of exception.
-* FIx wrong cause exception of stack in span log.
-* Fix unclear the running context in SpringMVC plugin.
-* Fix CPU usage accessor calculation issue.
-* Fix SpringMVC plugin span not stop bug when doing HTTP forward.
-* Fix lettuce plugin async commend bug and NPE.
-* Fix webflux plugin cast exception.
-* [CI]Support `import` check.
-
-#### Backend
-* Support time serious ElasticSearch storage.
-* Provide dynamic configuration module and implementation. Slow SQL threshold supports dynamic config today.
-* Dynamic Configuration module provide multiple implementations, DCS(gRPC based), Zookeeper, Apollo, Nacos.
-* Provide P99/95/90/75/50 charts in topology edge.
-* New topology query protocol and implementation.
-* Support Envoy ALS in Service Mesh scenario.
-* Support Nacos cluster management.
-* Enhance metric exporter. Run in increment and total modes.
-* Fix module provider is loaded repeatedly.
-* Change TOP slow SQL storage in ES to Text from Keyword, as too long text issue.
-* Fix H2TopologyQuery tiny bug.
-* Fix H2 log query bug.(No feature provided yet)
-* Filtering pods not in 'Running' phase in mesh scenario.
-* Fix query alarm bug in MySQL and H2 storage.
-* Codes refactor.
-
-#### UI
-* Fix some `ID is null` query(s).
-* Page refactor, especially time-picker, more friendly.
-* Login removed.
-* Trace timestamp visualization issue fixed.
-* Provide P99/95/90/75/50 charts in topology edge.
-* Change all P99/95/90/75/50 charts style. More readable.
-* Fix 404 in trace page.
-
-#### Document
-* Go2Sky project has been donated to SkyAPM, change document link.
-* Add FAQ for ElasticSearch storage, and links from document.
-* Add FAQ fro WebSphere installation.
-* Add several open users.
-* Add alarm webhook document.
-
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/33?closed=1)
-
-6.1.0
-------------------
-
-#### Project
-**SkyWalking graduated as Apache Top Level Project**.
-- Support compiling project agent, backend, UI separately.
-
-#### Java Agent
-- Support Vert.x Core 3.x plugin.
-- Support Apache Dubbo plugin.
-- Support `use_qualified_name_as_endpoint_name` and `use_qualified_name_as_operation_name` configs in SpringMVC plugin.
-- Support span async close APIs in core. Used in Vert.x plugin.
-- Support MySQL 5,8 plugins.
-- Support set instance id manually(optional).
-- Support customize enhance trace plugin in optional list.
-- Support to set peer in Entry Span.
-- Support Zookeeper plugin.
-- Fix Webflux plugin created unexpected Entry Span. 
-- Fix Kafka plugin NPE in Kafka 1.1+
-- Fix wrong operation name in postgre 8.x plugin.
-- Fix RabbitMQ plugin NPE.
-- Fix agent can't run in JVM 6/7, remove `module-info.class`.
-- Fix agent can't work well, if there is whitespace in agent path.
-- Fix Spring annotation bug and inheritance enhance issue.
-- Fix CPU accessor bug.
-
-#### Backend
-**Performance improved, especially in CPU limited environment. 3x improvement in service mesh scenario(no trace) in 8C16G VM. 
-Significantly cost less CPU in low payload.**
-
-- Support database metrics and SLOW SQL detection.
-- Support to set max size of metadata query. And change default to 5000 from 100.
-- Support ElasticSearch template for new feature in the future.
-- Support shutdown Zipkin trace analysis, because it doesn't fit production environment.
-- Support log type, scope HTTP_ACCESS_LOG and query. No feature provided, prepare for future  versions.
-- Support .NET clr receiver.
-- Support Jaeger trace format, no analysis.
-- Support group endpoint name by regax rules in mesh receiver.
-- Support `disable` statement in OAL.
-- Support basic auth in ElasticSearch connection.
-- Support metrics exporter module and gRPC implementor.
-- Support `>, <, >=, <=` in OAL.
-- Support role mode in backend.
-- Support Envoy metrics.
-- Support query segment by service instance.
-- Support to set host/port manually at cluster coordinator, rather than based on core settings.
-- Make sure OAP shutdown when it faces startup error.
-- Support set separated gRPC/Jetty ip:port for receiver, default still use core settings.
-- Fix JVM receiver bug.
-- Fix wrong dest service in mesh analysis.
-- Fix search doesn't work as expected.
-- Refactor `ScopeDeclaration` annotation.
-- Refactor register lock mechanism.
-- Add SmartSql component for .NET
-- Add integration tests for ElasticSearch client.
-- Add test cases for exporter.
-- Add test cases for queue consume.
-
-#### UI
-- RocketBot UI has been accepted and bind in this release.
-- Support CLR metrics.
-
-#### Document
-- Documents updated, matching Top Level Project requirement.
-- UI licenses updated, according to RocketBot UI IP clearance.
-- User wall and powered-by list updated.
-- CN documents removed, only consider to provide by volunteer out of Apache.
+* Support custom topology definition.
 
 
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/32?closed=1)
-
-
-6.0.0-GA
-------------------
-
-#### Java Agent
-- Support gson plugin(optional).
-- Support canal plugin.
-- Fix missing ojdbc component id.
-- Fix dubbo plugin conflict.
-- Fix OpenTracing tag match bug.
-- Fix a missing check in ignore plugin.
-
-#### Backend
-- Adjust service inventory entity, to add properties.
-- Adjust service instance inventory entity, to add properties.
-- Add nodeType to service inventory entity.
-- Fix when operation name of local and exit spans in ref, the segment lost.
-- Fix the index names don't show right in logs. 
-- Fix wrong alarm text.
-- Add test case for span limit mechanism.
-- Add telemetry module and prometheus implementation, with grafana setting.
-- A refactor for register API in storage module.
-- Fix H2 and MySQL endpoint dependency map miss upstream side.
-- Optimize the inventory register and refactor the implementation.
-- Speed up the trace buffer read.
-- Fix and removed unnecessary inventory register operations.
-
-#### UI
-- Add new trace view.
-- Add word-break to tag value. 
-
 #### Document
-- Add two startup modes document.
-- Add PHP agent links.
-- Add some cn documents.
-- Update year to 2019
-- User wall updated.
-- Fix a wrong description in `how-to-build` doc.
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/30?closed=1)
-
-6.0.0-beta
-------------------
+* Add FAQ about `python2` command required in the compiling.
+* Add doc about new e2e framework.
+* Add doc about the new profile feature.
+* Powered-by page updated.
 
-#### Protocol
-- Provide Trace Data Protocol v2
-- Provide SkyWalking Cross Process Propagation Headers Protocol v2.
-
-#### Java Agent
-- Support Trace Data Protocol v2
-- Support SkyWalking Cross Process Propagation Headers Protocol v2.
-- Support SkyWalking Cross Process Propagation Headers Protocol v1 running in compatible way. Need declare open explicitly.
-- Support SpringMVC 5
-- Support webflux
-- Support a new way to override agent.config by system env. 
-- Span tag can override by explicit way.
-- Fix Spring Controller Inherit issue.
-- Fix ElasticSearch plugin NPE.
-- Fix agent classloader dead lock in certain situation.
-- Fix agent log typo.
-- Fix wrong component id in resettemplete plugin.
-- Fix use transform `ignore()` in wrong way.
-- Fix H2 query bug.
-
-#### Backend
-- Support Trace Data Protocol v2. And Trace Data Protocol v1 is still supported.
-- Support MySQL as storage.
-- Support TiDB as storage.
-- Support a new way to override application.yml by system env.
-- Support service instance and endpoint alarm.
-- Support namespace in istio receiver.
-- Support service throughput(cpm), successful rate(sla), avg response time and p99/p95/p90/p75/p50 response time.
-- Support backend trace sampling.
-- Support Zipkin format again.
-- Support init mode.
-- Support namespace in Zookeeper cluster management.
-- Support consul plugin in cluster module.
-- OAL generate tool has been integrated into main repo, in the maven `compile` stage.
-- Optimize trace paging query.
-- Fix trace query don't use fuzzy query in ElasticSearch storage.
-- Fix alarm can't be active in right way.
-- Fix unnecessary condition in database and cache number query.
-- Fix wrong namespace bug in ElasticSearch storage.
-- Fix `Remote clients selector error: / by zero `.
-- Fix segment TTL is not working.
-
-#### UI
-- Support service throughput(cpm), successful rate(sla), avg response time and p99/p95/p90/p75/p50 response time.
-- Fix TopN endpoint link doesn't work right.
-- Fix trace stack style.
-- Fix CI.
-
-#### Document
-- Add more agent setting documents.
-- Add more contribution documents.
-- Update user wall and powered-by page.
-- Add RocketBot UI project link in document.
+All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/37?closed=1)
 
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/31?closed=1)
 
-6.0.0-alpha
+6.x releases
 ------------------
-
-SkyWalking 6 is totally new milestone for the project. At this point, we are not just a distributing
-tracing system with analysis and visualization capabilities. We are an **Observability Analysis Platform(OAL)**.
-
-The core and most important features in v6 are
-1. Support to collect telemetry data from different sources, such as multiple language agents and service mesh.
-1. Extensible stream analysis core. Make SQL and cache analysis available in core level, although haven't
-provided in this release.
-1. Provide **Observability Analysis Language(OAL)** to make analysis metrics customization available.
-1. New GraphQL query protocol. Not binding with UI now.
-1. UI topology is better now.
-1. New alarm core provided. In alpha, only on service related metrics.
-
-All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/29?closed=1)
+You could find all CHANGES of 6.x at [here](https://github.com/apache/skywalking/blob/6.x/CHANGES.md)
 
 5.x releases
 ------------------