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Posted to commits@lucene.apache.org by nk...@apache.org on 2016/04/01 22:42:49 UTC
svn commit: r12967 [16/22] - in
/dev/lucene/lucene-solr-6.0.0-RC2-rev48c80f91b8e5cd9b3a9b48e6184bd53e7619e7e3:
./ lucene/ lucene/changes/ lucene/maven/ lucene/maven/org/
lucene/maven/org/apache/ lucene/maven/org/apache/lucene/
lucene/maven/org/apache/l...
Added: dev/lucene/lucene-solr-6.0.0-RC2-rev48c80f91b8e5cd9b3a9b48e6184bd53e7619e7e3/solr/changes/Changes.html
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--- dev/lucene/lucene-solr-6.0.0-RC2-rev48c80f91b8e5cd9b3a9b48e6184bd53e7619e7e3/solr/changes/Changes.html (added)
+++ dev/lucene/lucene-solr-6.0.0-RC2-rev48c80f91b8e5cd9b3a9b48e6184bd53e7619e7e3/solr/changes/Changes.html Fri Apr 1 20:42:47 2016
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+<!--
+**********************************************************
+** WARNING: This file is generated from CHANGES.txt by the
+** Perl script 'changes2html.pl'.
+** Do *not* edit this file!
+**********************************************************
+
+****************************************************************************
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements. See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License. You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+****************************************************************************
+-->
+<html>
+<head>
+ <title>Apache Solr Release Notes</title>
+ <link rel="stylesheet" href="ChangesFancyStyle.css" title="Fancy">
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+<body>
+
+<h1>Apache Solr Release Notes</h1>
+
+<div id="buttons.parent"></div>
+
+<h2>Introduction</h2>
+ <p>Apache Solr is an open source enterprise search server based on the Apache Lucene Java
+search library, with XML/HTTP and JSON APIs, hit highlighting, faceted search,
+caching, replication, and a web administration interface.
+</p>
+ <p>See <a href="http://lucene.apache.org/solr">http://lucene.apache.org/solr</a> for more information.
+</p>
+<h2>Getting Started</h2>
+ <p>You need a Java 1.8 VM or later installed.
+In this release, there is an example Solr server including a bundled
+servlet container in the directory named "example".
+See the Quick Start guide at <a href="http://lucene.apache.org/solr/quickstart.html">http://lucene.apache.org/solr/quickstart.html</a>
+</p>
+<h2><a id="v6.0.0" href="javascript:toggleList('v6.0.0')">Release 6.0.0 </a></h2>
+<ul id="v6.0.0.list">
+ <li>Consult the <a href="http://lucene.apache.org/core/6_0_0/changes/Changes.html">LUCENE_CHANGES.txt</a> file for additional, low level, changes in this release
+</li>
+ </li>
+ <li><a id="v6.0.0.versions_of_major_components" href="javascript:toggleList('v6.0.0.versions_of_major_components')">Versions of Major Components</a> (6)
+ <ol id="v6.0.0.versions_of_major_components.list">
+ <li>Apache Tika 1.7
+</li>
+ <li>Carrot2 3.12.0
+</li>
+ <li>Velocity 1.7 and Velocity Tools 2.0
+</li>
+ <li>Apache UIMA 2.3.1
+</li>
+ <li>Apache ZooKeeper 3.4.6
+</li>
+ <li>Jetty 9.3.8.v20160314
+</li>
+ </ol>
+ </li>
+ <li><a id="v6.0.0.system_requirements" href="javascript:toggleList('v6.0.0.system_requirements')">System Requirements</a> (1)
+ <ol id="v6.0.0.system_requirements.list">
+ <li><a href="http://issues.apache.org/jira/browse/LUCENE-5950">LUCENE-5950</a>: Move to Java 8 as minimum Java version.
+<br /><span class="attrib">(Ryan Ernst, Uwe Schindler)</span></li>
+ </ol>
+ </li>
+ <li><a id="v6.0.0.upgrading_from_solr_5.x" href="javascript:toggleList('v6.0.0.upgrading_from_solr_5.x')">Upgrading from Solr 5.x</a> (17)
+ <ol id="v6.0.0.upgrading_from_solr_5.x.list">
+ <li>The deprecated SolrServer and subclasses have been removed, use SolrClient
+instead.
+<p/>
+</li>
+ <li>The deprecated <nrtMode> configuration in solrconfig.xml has been removed.
+Please remove it from solrconfig.xml.
+<p/>
+</li>
+ <li>SolrClient.shutdown() has been removed, use SolrClient.close() instead.
+<p/>
+</li>
+ <li>The deprecated zkCredientialsProvider element in solrcloud section of solr.xml
+is now removed. Use the correct spelling (zkCredentialsProvider) instead.
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7957">SOLR-7957</a>: internal/expert - ResultContext was significantly changed and expanded
+to allow for multiple full query results (DocLists) per Solr request.
+TransformContext was rendered redundant and was removed.
+<br /><span class="attrib">(yonik)</span></li>
+ <li>Several changes have been made regarding the "Similarity" used in Solr, in order to provide
+better default behavior for new users. There are 3 key impacts of these changes on existing
+users who upgrade:
+</li>
+ <li>DefaultSimilarityFactory has been removed. If you currently have DefaultSimilarityFactory explicitly
+referenced in your schema.xml, edit your config to use the functionally identical
+ClassicSimilarityFactory. See <a href="http://issues.apache.org/jira/browse/SOLR-8239">SOLR-8239</a> for more details.
+</li>
+ <li>The implicit default Similarity used when no <similarity/> is configured in schema.xml has
+been changed to SchemaSimilarityFactory. Users who wish to preserve back-compatible behavior should
+either explicitly configure ClassicSimilarityFactory, or ensure that the luceneMatchVersion
+for the collection is less then 6.0. See <a href="http://issues.apache.org/jira/browse/SOLR-8270">SOLR-8270</a> + <a href="http://issues.apache.org/jira/browse/SOLR-8271">SOLR-8271</a> for details.
+</li>
+ <li>SchemaSimilarityFactory has been modified to use BM25Similarity as the default for fieldTypes that
+do not explicitly declare a Similarity. The legacy behavior of using ClassicSimilarity as the
+default will occur if the luceneMatchVersion for the collection is less then 6.0, or the
+'defaultSimFromFieldType' configuration option may be used to specify any default of your choosing.
+See <a href="http://issues.apache.org/jira/browse/SOLR-8261">SOLR-8261</a> + <a href="http://issues.apache.org/jira/browse/SOLR-8329">SOLR-8329</a> for more details.
+<p/>
+</li>
+ <li>If your solrconfig.xml file doesn't explicitly mention the schemaFactory to use then Solr will choose
+the ManagedIndexSchemaFactory by default. Previously it would have chosen ClassicIndexSchemaFactory.
+This means that the Schema APIs ( /<collection>/schema ) are enabled and the schema is mutable.
+When Solr starts your schema.xml file will be renamed to managed-schema. If you want to retain the old behaviour
+then please ensure that the solrconfig.xml explicitly uses the ClassicIndexSchemaFactory :
+<schemaFactory class="ClassicIndexSchemaFactory"/> or your luceneMatchVersion in the solrconfig.xml is less than 6.0
+<p/>
+</li>
+ <li>SolrIndexSearcher.QueryCommand and QueryResult were moved to their own classes. If you reference them
+in your code, you should import them under o.a.s.search (or use your IDE's "Organize Imports").
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8698">SOLR-8698</a>: 'useParams' attribute specified in request handler cannot be overridden from request params
+<p/>
+</li>
+ <li>When requesting stats in date fields, "sum" is now a double value instead of a date. See <a href="http://issues.apache.org/jira/browse/SOLR-8671">SOLR-8671</a>
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8736">SOLR-8736</a>: The deprecated GET methods for schema are now accessible through the bulk API. The output
+has less details and is not backward compatible.
+<p/>
+</li>
+ <li>In the past, Solr guaranteed that retrieval of multi-valued fields would preserve the order of values.
+Because values may now be retrieved from column-stored fields (docValues="true"), in conjunction with the
+fact that docValues do not currently preserve order, means that users should set useDocValuesAsStored="false"
+to prevent future optizations from using the column-stored values over the row-stored values when
+fields have both stored="true" and docValues="true".
+<p/>
+</li>
+ <li>Formatted date-times from Solr have some differences. If the year is more than 4 digits, there is a leading '+'.
+When there is a non-zero number of milliseconds, it is padded with zeros to 3 digits. Negative year (BC) dates are
+now possible. Parsing: It is now an error to supply a portion of the date out of its, range, like 67 seconds.
+<p/>
+</li>
+ <li>SolrJ no longer includes DateUtil. If for some reason you need to format or parse dates, simply use Instant.format()
+and Instant.parse().
+<p/>
+</li>
+ </ol>
+ </li>
+ <h3>Detailed Change List</h3>
+ <li><a id="v6.0.0.new_features" href="javascript:toggleList('v6.0.0.new_features')">New Features</a> (33)
+ <ol id="v6.0.0.new_features.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-3085">SOLR-3085</a>: New edismax param mm.autoRelax which helps in certain cases of the stopwords/zero-hits issue
+<br /><span class="attrib">(janhoy)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7560">SOLR-7560</a>: Parallel SQL Support
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7707">SOLR-7707</a>: Add StreamExpression Support to RollupStream
+<br /><span class="attrib">(Dennis Gove, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7903">SOLR-7903</a>: Add the FacetStream to the Streaming API and wire it into the SQLHandler
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7986">SOLR-7986</a>: JDBC Driver for SQL Interface
+<br /><span class="attrib">(Uwe Schindler, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8038">SOLR-8038</a>: Add the StatsStream to the Streaming API and wire it into the SQLHandler
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8086">SOLR-8086</a>: Add support for SELECT DISTINCT queries to the SQL interface
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7543">SOLR-7543</a>: Basic graph traversal query
+Example: {!graph from="node_id" to="edge_id"}id:doc_1
+<br /><span class="attrib">(Kevin Watters, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6273">SOLR-6273</a>: Cross Data Center Replication. Active/passive replication for separate
+SolrClouds hosted on separate data centers.
+<br /><span class="attrib">(Renaud Delbru, Yonik Seeley via Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7938">SOLR-7938</a>: MergeStream now supports merging more than 2 streams together
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8198">SOLR-8198</a>: Change ReducerStream to use StreamEqualitor instead of StreamComparator
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8268">SOLR-8268</a>: StatsStream now implements the Expressible interface
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7584">SOLR-7584</a>: Adds Inner and LeftOuter Joins to the Streaming API and Streaming Expressions
+<br /><span class="attrib">(Dennis Gove, Corey Wu)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8188">SOLR-8188</a>: Adds Hash and OuterHash Joins to the Streaming API and Streaming Expressions
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7669">SOLR-7669</a>: Add SelectStream and Tuple Operations to the Streaming API and Streaming Expressions
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8337">SOLR-8337</a>: Add ReduceOperation and wire it into the ReducerStream
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7904">SOLR-7904</a>: Add StreamExpression Support to FacetStream
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6398">SOLR-6398</a>: Add IterativeMergeStrategy to support running Parallel Iterative Algorithms inside of Solr
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8436">SOLR-8436</a>: Real-time get now supports filters.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7535">SOLR-7535</a>: Add UpdateStream to Streaming API and Streaming Expression
+<br /><span class="attrib">(Jason Gerlowski, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8479">SOLR-8479</a>: Add JDBCStream to Streaming API and Streaming Expressions for integration with external data sources
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8002">SOLR-8002</a>: Add column alias support to the Parallel SQL Interface
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7525">SOLR-7525</a>: Add ComplementStream and IntersectStream to the Streaming API and Streaming Expressions
+<br /><span class="attrib">(Dennis Gove, Jason Gerlowski, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8415">SOLR-8415</a>: Provide command to switch between non/secure mode in ZK
+<br /><span class="attrib">(Mike Drob, Gregory Chanan)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8556">SOLR-8556</a>: Add ConcatOperation to be used with the SelectStream
+<br /><span class="attrib">(Joel Bernstein, Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8550">SOLR-8550</a>: Add asynchronous DaemonStreams to the Streaming API
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8285">SOLR-8285</a>: Ensure the /export handler works with NULL field values
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8502">SOLR-8502</a>: Improve Solr JDBC Driver to support SQL Clients like DBVisualizer
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8588">SOLR-8588</a>: Add TopicStream to the streaming API to support publish/subscribe messaging
+<br /><span class="attrib">(Joel Bernstein, Kevin Risden)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8666">SOLR-8666</a>: Adds header 'zkConnected' to response of SearchHandler and PingRequestHandler to notify the client when
+a connection to zookeeper has been lost and there is a possibility of stale data on the node the request is coming
+from.
+<br /><span class="attrib">(Keith Laban, Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8522">SOLR-8522</a>: Make it possible to use ip fragments in replica placement rules , such as ip_1, ip_2 etc
+<br /><span class="attrib">(Arcadius Ahouansou, noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8698">SOLR-8698</a>: params.json can now specify 'appends' and 'invariants'
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8831">SOLR-8831</a>: allow _version_ field to be retrievable via docValues
+<br /><span class="attrib">(yonik)</span></li>
+ </ol>
+ </li>
+ <li><a id="v6.0.0.bug_fixes" href="javascript:toggleList('v6.0.0.bug_fixes')">Bug Fixes</a> (40)
+ <ol id="v6.0.0.bug_fixes.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8386">SOLR-8386</a>: Add field option in the new admin UI schema page loads up even when no schemaFactory has been
+explicitly specified since the default is ManagedIndexSchemaFactory.
+<br /><span class="attrib">(Erick Erickson, Upayavira, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8191">SOLR-8191</a>: Guard against CloudSolrStream close method NullPointerException
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8485">SOLR-8485</a>: SelectStream now properly handles non-lowercase and/or quoted select field names
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8525">SOLR-8525</a>: Fix a few places that were failing to pass dimensional
+values settings when copying a FieldInfo
+<br /><span class="attrib">(Ishan Chattopadhyaya via
+Mike McCandless)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8409">SOLR-8409</a>: Ensures that quotes in solr params (eg. q param) are properly handled
+<br /><span class="attrib">(Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8640">SOLR-8640</a>: CloudSolrClient does not send credentials for update request
+<br /><span class="attrib">(noble, hoss)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8461">SOLR-8461</a>: CloudSolrStream and ParallelStream can choose replicas that are not active
+<br /><span class="attrib">(Cao Manh Dat, Varun Thacker, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8527">SOLR-8527</a>: Improve JdbcTest to cleanup properly on failures
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8578">SOLR-8578</a>: Successful or not, requests are not always fully consumed by Solrj clients and we
+count on HttpClient or the JVM.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8683">SOLR-8683</a>: Always consume the full request on the server, not just in the case of an error.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8416">SOLR-8416</a>: The collections create API should return after all replicas are active.
+<br /><span class="attrib">(Michael Sun, Mark Miller, Alexey Serba)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8701">SOLR-8701</a>: CloudSolrClient decides that there are no healthy nodes to handle a request too early.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8694">SOLR-8694</a>: DistributedMap/Queue can create too many Watchers and some code simplification.
+<br /><span class="attrib">(Scott Blum via Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8695">SOLR-8695</a>: Ensure ZK watchers are not triggering our watch logic on connection events and
+make this handling more consistent.
+<br /><span class="attrib">(Scott Blum via Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8633">SOLR-8633</a>: DistributedUpdateProcess processCommit/deleteByQuery call finish on DUP and
+SolrCmdDistributor, which violates the lifecycle and can cause bugs.
+<br /><span class="attrib">(hossman via Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8656">SOLR-8656</a>: PeerSync should use same nUpdates everywhere.
+<br /><span class="attrib">(Ramsey Haddad via Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8697">SOLR-8697</a>, <a href="http://issues.apache.org/jira/browse/SOLR-8837">SOLR-8837</a>: Scope ZK election nodes by session to prevent elections from interfering with each other
+and other small LeaderElector improvements.
+<br /><span class="attrib">(Scott Blum via Mark Miller, Alan
+Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8599">SOLR-8599</a>: After a failed connection during construction of SolrZkClient attempt to retry until a connection
+can be made.
+<br /><span class="attrib">(Keith Laban, Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8497">SOLR-8497</a>: Merge index does not mark the Directory objects it creates as 'done' and they are retained in the
+Directory cache.
+<br /><span class="attrib">(Sivlio Sanchez, Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8696">SOLR-8696</a>: Start the Overseer before actions that need the overseer on init and when reconnecting after
+zk expiration and improve init logic.
+<br /><span class="attrib">(Scott Blum, Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8420">SOLR-8420</a>: Fix long overflow in sumOfSquares for Date statistics.
+<br /><span class="attrib">(Tom Hill, Christine Poerschke,
+Tomás Fernández Löbbe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8748">SOLR-8748</a>: OverseerTaskProcessor limits number of concurrent tasks to just 10 even though the thread pool
+size is 100. The limit has now been increased to 100.
+<br /><span class="attrib">(Scott Blum, shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8375">SOLR-8375</a>: ReplicaAssigner rejects valid nodes
+<br /><span class="attrib">(Kelvin Tan, noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8738">SOLR-8738</a>: Fixed false success response when invalid deleteByQuery requests intially hit non-leader
+cloud nodes
+<br /><span class="attrib">(hossman)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8771">SOLR-8771</a>: Multi-threaded core shutdown creates executor per core.
+<br /><span class="attrib">(Mike Drob via Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8145">SOLR-8145</a>: Fix position of OOM killer script when starting Solr in the background
+<br /><span class="attrib">(Jurian Broertjes via
+Timothy Potter)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8769">SOLR-8769</a>: Fix document exclusion in mlt query parser in Cloud mode for schemas that have non-"id"
+unique field
+<br /><span class="attrib">(Erik Hatcher, Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8728">SOLR-8728</a>: ReplicaAssigner throws NPE when a partial list of nodes are only participating in replica
+placement. splitshard should preassign nodes using rules, if rules are present
+<br /><span class="attrib">(noble,Shai Erera)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8779">SOLR-8779</a>: Fix missing InterruptedException handling in ZkStateReader.java
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8449">SOLR-8449</a>: Fix the core restore functionality to allow restoring multiple times on the same core
+<br /><span class="attrib">(Johannes Brucher, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8155">SOLR-8155</a>: JSON Facet API - field faceting on a multi-valued string field without
+docValues (i.e. UnInvertedField implementation), but with a prefix or with a sort
+other than count, resulted in incorrect results. This has been fixed, and facet.prefix
+support for facet.method=uif has been enabled.
+<br /><span class="attrib">(Mikhail Khludnev, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8135">SOLR-8135</a>: If a core reload is fired after a core close, it is not a non-recoverable error
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8804">SOLR-8804</a>: Fix a race condition in the ClusterStatus API call whereby the call would fail when a concurrent delete
+collection api command was executed
+<br /><span class="attrib">(Alexey Serba, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8835">SOLR-8835</a>: JSON Facet API: fix faceting exception on multi-valued numeric fields that
+have docValues.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8790">SOLR-8790</a>: Collections API responses contain node name in the core-level responses that are
+returned.
+<br /><span class="attrib">(Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8838">SOLR-8838</a>: Returning non-stored docValues is incorrect for negative floats and doubles.
+<br /><span class="attrib">(Ishan Chattopadhyaya, Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8867">SOLR-8867</a>: {!frange} queries will now avoid matching documents without a value in the
+numeric field. For more complex functions, FunctionValues.exists() must also return true
+for the document to match.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8886">SOLR-8886</a>: Fix TrieField.toObject(IndexableField) to work for field with docValues
+enabled.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8891">SOLR-8891</a>: Fix StrField.toObject and toExternal to work with docValue IndexableField
+instances.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8865">SOLR-8865</a>: Real-time get sometimes fails to retrieve stored fields from docValues.
+<br /><span class="attrib">(Ishan Chattopadhyaya, yonik)</span></li>
+ </ol>
+ </li>
+ <li><a id="v6.0.0.optimizations" href="javascript:toggleList('v6.0.0.optimizations')">Optimizations</a> (7)
+ <ol id="v6.0.0.optimizations.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7876">SOLR-7876</a>: Speed up queries and operations that use many terms when timeAllowed has not been
+specified. Speedups of up to 8% were observed.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8037">SOLR-8037</a>: Speed up creation of filters from term range queries (i.e. non-numeric range queries)
+and use the filter cache for term range queries that are part of larger queries. Some observed
+speedups were up to 2.5x for production of filters, and up to 10x for query evaluation with
+embedded term range queres that resulted in filter cache hits.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8559">SOLR-8559</a>: FCS facet performance optimization which significantly speeds up processing when terms
+are high cardinality and the matching docset is small. When facet minCount > 0 and the number of
+matching documents is small (or 0) this enhancement prevents considering terms which have a 0
+count. Also includes change to move to the next non-zero term value when selecting a segment
+position.
+<br /><span class="attrib">(Keith Laban, Steve Bower, Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8532">SOLR-8532</a>: Optimize GraphQuery when maxDepth is set by not collecting edges at the maxDepth level.
+<br /><span class="attrib">(Kevin Watters via yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8669">SOLR-8669</a>: Non binary responses use chunked encoding because we flush the outputstream early.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8720">SOLR-8720</a>: ZkController#publishAndWaitForDownStates should use #publishNodeAsDown.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8082">SOLR-8082</a>: Can't query against negative float or double values when indexed="false"
+docValues="true" multiValued="false".
+<br /><span class="attrib">(hossman, Ishan Chattopadhyaya, yonik, Steve Rowe)</span></li>
+ </ol>
+ </li>
+ <li><a id="v6.0.0.other_changes" href="javascript:toggleList('v6.0.0.other_changes')">Other Changes</a> (52)
+ <ol id="v6.0.0.other_changes.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6127">SOLR-6127</a>: Improve example docs, using films data
+<br /><span class="attrib">(Varun Thacker via ehatcher)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6895">SOLR-6895</a>: Deprecated SolrServer classes have been removed
+<br /><span class="attrib">(Alan Woodward,
+Erik Hatcher)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6954">SOLR-6954</a>: Deprecated SolrClient.shutdown() method removed
+<br /><span class="attrib">(Alan Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7355">SOLR-7355</a>: Switch from Google's ConcurrentLinkedHashMap to Caffeine. Only
+affects HDFS support.
+<br /><span class="attrib">(Ben Manes via Shawn Heisey)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7624">SOLR-7624</a>: Remove deprecated zkCredientialsProvider element in solrcloud section of solr.xml.
+<br /><span class="attrib">(Xu Zhang, Per Steffensen, Ramkumar Aiyengar, Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7513">SOLR-7513</a>: Add Equalitors to Streaming Expressions
+<br /><span class="attrib">(Dennis Gove, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7528">SOLR-7528</a>: Simplify Interfaces used in Streaming Expressions
+<br /><span class="attrib">(Dennis Gove, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7554">SOLR-7554</a>: Add checks in Streams for incoming stream order
+<br /><span class="attrib">(Dennis Gove, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7441">SOLR-7441</a>: Improve overall robustness of the Streaming stack: Streaming API,
+Streaming Expressions, Parallel SQL
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8153">SOLR-8153</a>: Support upper case and mixed case column identifiers in the SQL interface
+<br /><span class="attrib">(Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8132">SOLR-8132</a>: HDFSDirectoryFactory now defaults to using the global block cache.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8261">SOLR-8261</a>: Change SchemaSimilarityFactory default to BM25Similarity
+<br /><span class="attrib">(hossman)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8259">SOLR-8259</a>: Remove deprecated JettySolrRunner.getDispatchFilter()
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8258">SOLR-8258</a>: Change default hdfs tlog replication factor from 1 to 3.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8270">SOLR-8270</a>: Change implicit default Similarity to use BM25 when luceneMatchVersion >= 6
+<br /><span class="attrib">(hossman)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8271">SOLR-8271</a>: Change implicit default Similarity to use SchemaSimilarityFactory when luceneMatchVersion >= 6
+<br /><span class="attrib">(hossman)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8179">SOLR-8179</a>: SQL JDBC - DriverImpl loadParams doesn't support keys with no values in the connection string
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8131">SOLR-8131</a>: Make ManagedIndexSchemaFactory the default schemaFactory when luceneMatchVersion >= 6
+<br /><span class="attrib">(Uwe Schindler, shalin, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8266">SOLR-8266</a>: Remove Java Serialization from the Streaming API. The /stream handler now only accepts
+Streaming Expressions.
+<br /><span class="attrib">(Jason Gerlowski, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8426">SOLR-8426</a>: Enable /export, /stream and /sql handlers by default and remove them from example configs.
+<br /><span class="attrib">(shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8443">SOLR-8443</a>: Change /stream handler http param from "stream" to "expr"
+<br /><span class="attrib">(Joel Bernstein, Dennis Gove)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-5209">SOLR-5209</a>: Unloading or deleting the last replica of a shard now no longer
+cascades to remove the shard from the clusterstate.
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8190">SOLR-8190</a>: Implement Closeable on TupleStream
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8529">SOLR-8529</a>: Improve JdbcTest to not use plain assert statements
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7339">SOLR-7339</a>: Upgrade Jetty to v9.3.8.v20160314.
+<br /><span class="attrib">(Gregg Donovan, shalin, Mark Miller, Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-5730">SOLR-5730</a>: Make Lucene's SortingMergePolicy and EarlyTerminatingSortingCollector configurable in Solr.
+<br /><span class="attrib">(Christine Poerschke, hossmann, Tomás Fernández Löbbe, Shai Erera)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8677">SOLR-8677</a>: Prevent shards containing invalid characters from being created. Checks added server-side
+and in SolrJ.
+<br /><span class="attrib">(Shai Erera, Jason Gerlowski, Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8693">SOLR-8693</a>: Improve ZkStateReader logging.
+<br /><span class="attrib">(Scott Blum via Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8710">SOLR-8710</a>: Upgrade morfologik-stemming to version 2.1.0.
+<br /><span class="attrib">(Dawid Weiss)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8711">SOLR-8711</a>: Upgrade Carrot2 clustering dependency to 3.12.0.
+<br /><span class="attrib">(Dawid Weiss)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8690">SOLR-8690</a>: Make peersync fingerprinting optional with solr.disableFingerprint system
+property.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8691">SOLR-8691</a>: Cache index fingerprints per searcher.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8746">SOLR-8746</a>: Renamed Overseer.getInQueue to getStateUpdateQueue, getInternalQueue to getInternalWorkQueue
+and added javadocs.
+<br /><span class="attrib">(Scott Blum, shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8752">SOLR-8752</a>: Add a test for SizeLimitedDistributedMap and improve javadocs.
+<br /><span class="attrib">(shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8671">SOLR-8671</a>: Date statistics: make "sum" a double instead of a long/date
+<br /><span class="attrib">(Tom Hill, Christine Poerschke,
+Tomás Fernández Löbbe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8713">SOLR-8713</a>: new UI and example solrconfig files point to Reference Guide for Solr Query Syntax instead
+of the wiki.
+<br /><span class="attrib">(Marius Grama via Tomás Fernández Löbbe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8758">SOLR-8758</a>: Add a new SolrCloudTestCase class, using MiniSolrCloudCluster
+<br /><span class="attrib">(Alan
+Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8764">SOLR-8764</a>: Remove all deprecated methods and classes from master prior to the 6.0 release.
+<br /><span class="attrib">(Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8780">SOLR-8780</a>: Remove unused OverseerCollectionMessageHandler#getClusterStatus method.
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8778">SOLR-8778</a>: Deprecate CSVStrategy's setters, and make its pre-configured strategies immutable.
+<br /><span class="attrib">(Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7010">SOLR-7010</a>: Remove facet.date client functionality.
+<br /><span class="attrib">(Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8725">SOLR-8725</a>: Allow hyphen in collection, core, shard, and alias name as the non-first character
+<br /><span class="attrib">(Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8423">SOLR-8423</a>: DeleteShard and DeleteReplica should cleanup instance and data directory by default and add
+support for optionally retaining the directories.
+<br /><span class="attrib">(Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8736">SOLR-8736</a>: schema GET operations on fields, dynamicFields, fieldTypes, copyField are
+reimplemented as a part of the bulk API with less details
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8766">SOLR-8766</a>: Remove deprecated <admin> tag in solrconfig.xml and support for admin/gettableFiles
+<br /><span class="attrib">(noble, Jason Gerlowski, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8799">SOLR-8799</a>: Improve error message when tuple can't be read by SolrJ JDBC
+<br /><span class="attrib">(Kevin Risden, Joel Bernstein)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8836">SOLR-8836</a>: Return 400, and a SolrException when an invalid json is provided to the update handler
+instead of 500.
+<br /><span class="attrib">(Jason Gerlowski via Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8740">SOLR-8740</a>: docValues are now enabled by default for most non-text (string, date, and numeric) fields
+in the schema templates.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8819">SOLR-8819</a>: Implement DatabaseMetaDataImpl getTables() and fix getSchemas().
+<br /><span class="attrib">(Trey Cahill,
+Joel Bernstein, Kevin Risden)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8810">SOLR-8810</a>: Implement Connection.setReadOnly, Statement.set/getFetchSize,
+ResultSet.getType
+<br /><span class="attrib">(Kevin Risden)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8904">SOLR-8904</a>: All dates are formatted via Instant.toString() (ISO-8601); see Solr upgrade notes for differences. Will
+now parse (and format) dates with a leading '+' or '-' (BC dates or dates > 4 digit year.
+[value] and ms() and contrib/analytics now parse with date math.
+<br /><span class="attrib">(David Smiley)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8904">SOLR-8904</a>: DateUtil in SolrJ moved to the extraction contrib as ExtractionDateUtil. Obsolete methods were removed.
+<br /><span class="attrib">(David Smiley)</span></li>
+ </ol>
+ </li>
+</ul>
+<h2><a id="v5.5.1" href="javascript:toggleList('v5.5.1')">Release 5.5.1 </a></h2>
+<ul id="v5.5.1.list">
+ <li><a id="v5.5.1.bug_fixes" href="javascript:toggleList('v5.5.1.bug_fixes')">Bug Fixes</a> (4)
+ <ol id="v5.5.1.bug_fixes.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8737">SOLR-8737</a>: Managed synonym lists do not include the original term in the expand
+<br /><span class="attrib">(janhoy)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8734">SOLR-8734</a>: fix (maxMergeDocs|mergeFactor) deprecation warnings: in solrconfig.xml
+<maxMergeDocs|mergeFactor> may not be combined with <mergePolicyFactory> and
+<maxMergeDocs|mergeFactor> on their own or combined with <mergePolicy> is a warning.
+<br /><span class="attrib">(Christine Poerschke, Shai Erera)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8712">SOLR-8712</a>: Variable solr.core.instanceDir was not being resolved
+<br /><span class="attrib">(Kristine
+Jetzke, Shawn Heisey, Alan Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8793">SOLR-8793</a>: Fix Core admin status API to not fail when computing the size of the segments_N
+file if the file no longer exists (for example, if a commit happened and the IndexReader
+hasn't refreshed yet). In this case the reported size of the file is -1.
+<br /><span class="attrib">(Shai Erera, Alexey Serba, Richard Coggins)</span></li>
+ </ol>
+ </li>
+</ul>
+<h2><a id="older" href="javascript:toggleList('older')">Older Releases</a></h2>
+<ul id="older.list">
+<h3><a id="v5.5.0" href="javascript:toggleList('v5.5.0')">Release 5.5.0 [2016-02-23]</a></h3>
+<ul id="v5.5.0.list">
+ <li>Consult the <a href="http://lucene.apache.org/core/6_0_0/changes/Changes.html">LUCENE_CHANGES.txt</a> file for additional, low level, changes in this release
+</li>
+ </li>
+ <li><a id="v5.5.0.versions_of_major_components" href="javascript:toggleList('v5.5.0.versions_of_major_components')">Versions of Major Components</a> (6)
+ <ol id="v5.5.0.versions_of_major_components.list">
+ <li>Apache Tika 1.7
+</li>
+ <li>Carrot2 3.10.4
+</li>
+ <li>Velocity 1.7 and Velocity Tools 2.0
+</li>
+ <li>Apache UIMA 2.3.1
+</li>
+ <li>Apache ZooKeeper 3.4.6
+</li>
+ <li>Jetty 9.2.13.v20150730
+</li>
+ </ol>
+ </li>
+ <li><a id="v5.5.0.upgrading_from_solr_5.4" href="javascript:toggleList('v5.5.0.upgrading_from_solr_5.4')">Upgrading from Solr 5.4</a> (7)
+ <ol id="v5.5.0.upgrading_from_solr_5.4.list">
+ <li>The Solr schema version has been increased to 1.6. Since schema version 1.6, all non-stored docValues fields
+will be returned along with other stored fields when all fields (or pattern matching globs) are specified
+to be returned (e.g. fl=*) for search queries. This behavior can be turned on and off by setting
+'useDocValuesAsStored' parameter for a field or a field type to true (default since schema version 1.6)
+or false (default till schema version 1.5).
+Note that enabling this property has performance implications because DocValues are column-oriented and may
+therefore incur additional cost to retrieve for each returned document. All example schema are upgraded to
+version 1.6 but any older schemas will default to useDocValuesAsStored=false and continue to work as in
+older versions of Solr. If this new behavior is desirable, then you should set version attribute in your
+schema file to '1.6'. Re-indexing is not necessary to upgrade the schema version.
+Also note that while returning non-stored fields from docValues (default in schema versions 1.6+, unless
+useDocValuesAsStored is false), the values of a multi-valued field are returned in sorted order.
+If you require the multi-valued fields to be returned in the original insertion order, then make your
+multi-valued field as stored. This requires re-indexing.
+See <a href="http://issues.apache.org/jira/browse/SOLR-8220">SOLR-8220</a> for more details.
+<p/>
+</li>
+ <li>All protected methods from CoreAdminHandler other than handleCustomAction() is removed by <a href="http://issues.apache.org/jira/browse/SOLR-8476">SOLR-8476</a> and can
+no more be overridden. If you still wish to override those methods, override the handleRequestBody()
+<p/>
+</li>
+ <li>The PERSIST CoreAdmin action which was a NOOP and returned a deprecated message has been removed. See <a href="http://issues.apache.org/jira/browse/SOLR-8476">SOLR-8476</a>
+for more details. The corresponding SolrJ action has also been removed.
+<p/>
+</li>
+ <li>bin/post now defaults application/json files to the /update/json/docs end-point. Use `-format solr` to force
+files to the /update end-point. See <a href="http://issues.apache.org/jira/browse/SOLR-7042">SOLR-7042</a> for more details.
+<p/>
+</li>
+ <li>In solrconfig.xml the <mergePolicy> element is deprecated in favor of a similar <mergePolicyFactory> element,
+the <mergeFactor> and <maxMergeDocs> elements are also deprecated, please see <a href="http://issues.apache.org/jira/browse/SOLR-8621">SOLR-8621</a> for full details.
+<p/>
+To migrate your existing solrconfig.xml, you can replace elements as follows:
+<p/>
+<!-- TieredMergePolicy example -->
+<!-- deprecated -->
+<mergeFactor>??</mergeFactor>
+<mergePolicy class="org.apache.lucene.index.TieredMergePolicy">
+ <bool name="useCompoundFile">???</bool> <!-- deprecated since Lucene/Solr 4.4.0 -->
+ ...
+</mergePolicy>
+<!-- replacement -->
+<useCompoundFile>???</useCompoundFile> <!-- since Lucene/Solr 4.4.0 -->
+<mergePolicyFactory class="org.apache.solr.index.TieredMergePolicyFactory">
+ <int name="maxMergeAtOnce">??</int> <!-- formerly the <mergeFactor> element implicitly set this -->
+ <int name="segmentsPerTier">??</int> <!-- formerly the <mergeFactor> element implicitly set this -->
+ ...
+</mergePolicyFactory>
+<p/>
+<!-- Log(ByteSize|Doc)MergePolicy example -->
+<!-- deprecated -->
+<maxMergeDocs>????</maxMergeDocs>
+<mergeFactor>??</mergeFactor>
+<mergePolicy class="org.apache.lucene.index.Log?MergePolicy">
+ <bool name="useCompoundFile">???</bool> <!-- deprecated since Lucene/Solr 4.4.0 -->
+ ...
+</mergePolicy>
+<!-- replacement -->
+<useCompoundFile>???</useCompoundFile> <!-- since Lucene/Solr 4.4.0 -->
+<mergePolicyFactory class="org.apache.solr.index.Log?MergePolicyFactory">
+ <int name="maxMergeDocs">????</int> <!-- formerly the <maxMergeDocs> element set this -->
+ <int name="mergeFactor">??</int> <!-- formerly the <mergeFactor> element set this -->
+ ...
+</mergePolicyFactory>
+<p/>
+</li>
+ <li>Clearing up stored async collection api responses via REQUESTSTATUS call is now deprecated and would be
+removed in 6.0. See <a href="http://issues.apache.org/jira/browse/SOLR-8648">SOLR-8648</a> for more details.
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6594">SOLR-6594</a>: Deprecated the old schema API which will be removed in a later major release
+<p/>
+</li>
+ </ol>
+ </li>
+ <h4>Detailed Change List</h4>
+ <li><a id="v5.5.0.new_features" href="javascript:toggleList('v5.5.0.new_features')">New Features</a> (22)
+ <ol id="v5.5.0.new_features.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7928">SOLR-7928</a>: Improve CheckIndex to work against HdfsDirectory
+<br /><span class="attrib">(Mike Drob, Gregory Chanan)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8378">SOLR-8378</a>: Add upconfig and downconfig commands to the bin/solr script
+<br /><span class="attrib">(Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8434">SOLR-8434</a>: Add wildcard support to role, to match any role in RuleBasedAuthorizationPlugin
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-4280">SOLR-4280</a>: Allow specifying "spellcheck.maxResultsForSuggest" as a percentage of filter
+query results
+<br /><span class="attrib">(Markus Jelsma via James Dyer)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8429">SOLR-8429</a>: Add a flag 'blockUnknown' to BasicAuthPlugin to block unauthenticated requests
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8230">SOLR-8230</a>: JSON Facet API: add "facet-info" into debug section of response when debugQuery=true
+<br /><span class="attrib">(Michael Sun, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8428">SOLR-8428</a>: RuleBasedAuthorizationPlugin adds an 'all' permission
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-5743">SOLR-5743</a>: BlockJoinFacetComponent and BlockJoinDocSetFacetComponent for calculating facets by
+child.facet.field parameter with {!parent ..}.. query. They count facets on children documents
+aggregating (deduplicating) counts by parent documents
+<br /><span class="attrib">(Dr. Oleg Savrasov via Mikhail Khludnev)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8220">SOLR-8220</a>: Read field from DocValues for non stored fields.
+<br /><span class="attrib">(Keith Laban, yonik, Erick Erickson, Ishan Chattopadhyaya, shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8470">SOLR-8470</a>: Make TTL of PKIAuthenticationPlugin's tokens configurable through a system property
+(pkiauth.ttl)
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8477">SOLR-8477</a>: Let users choose compression mode in SchemaCodecFactory
+<br /><span class="attrib">(Tomás Fernández Löbbe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-839">SOLR-839</a>: XML QueryParser support (defType=xmlparser)
+Lucene includes a queryparser that supports the creation of Lucene queries from XML.
+The queries supported by lucene.queryparser.xml.CoreParser are now supported by the newly
+created solr.search.SolrCoreParser and in future SolrCoreParser could support additional
+queries also.
+Example: <BooleanQuery fieldName="description">
+ <Clause occurs="must"> <TermQuery>shirt</TermQuery> </Clause>
+ <Clause occurs="mustnot"> <TermQuery>plain</TermQuery> </Clause>
+ <Clause occurs="should"> <TermQuery>cotton</TermQuery> </Clause>
+ <Clause occurs="must">
+ <BooleanQuery fieldName="size">
+ <Clause occurs="should"> <TermsQuery>S M L</TermsQuery> </Clause>
+ </BooleanQuery>
+ </Clause>
+ </BooleanQuery>
+<br /><span class="attrib">(Erik Hatcher, Karl Wettin, Daniel Collins, Nathan Visagan, Ahmet Arslan, Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8312">SOLR-8312</a>: Add domain size and numBuckets to facet telemetry info (facet debug info
+for the new Facet Module).
+<br /><span class="attrib">(Michael Sun, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8534">SOLR-8534</a>: Add generic support for collection APIs to be async. Thus more actions benefit from having async
+support. The commands that additionally get async support are: delete/reload collection, create/delete alias,
+create/delete shard, delete replica, add/delete replica property, add/remove role,
+overseer status, balance shard unique, rebalance leaders, modify collection, migrate state format
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-4619">SOLR-4619</a>: Improve PreAnalyzedField query analysis.
+<br /><span class="attrib">(Andrzej Bialecki, Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8560">SOLR-8560</a>: Added RequestStatusState enum which can be used when comparing states of
+asynchronous requests.
+<br /><span class="attrib">(Shai Erera)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8586">SOLR-8586</a>: added index fingerprint, a hash over all versions currently in the index.
+PeerSync now uses this to check if replicas are in sync.
+<br /><span class="attrib">(yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8500">SOLR-8500</a>: Allow the number of threads ConcurrentUpdateSolrClient StreamingSolrClients configurable by a
+system property. NOTE: this is an expert option and can result in more often needing to do full index replication
+for recovery, the sweet spot for using this is very high volume, leader-only indexing.
+<br /><span class="attrib">(Tim Potter, Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8642">SOLR-8642</a>: SOLR allows creation of collections with invalid names
+<br /><span class="attrib">(Jason Gerlowski via Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8621">SOLR-8621</a>: Deprecate <mergePolicy> in favor of <mergePolicyFactory>. It allows to configure
+both the "simple" merge policies, but also more advanced ones, e.g. UpgradeIndexMergePolicy.
+<br /><span class="attrib">(Christine Poerschke, Shai Erera)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8648">SOLR-8648</a>: DELETESTATUS API for selective deletion and flushing of stored async collection API responses.
+<br /><span class="attrib">(Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8466">SOLR-8466</a>: adding facet.method=uif to bring back UnInvertedField faceting which is used to work on
+facet.method=fc. It's more performant for rarely changing indexes. Note: it ignores prefix and contains yet.
+<br /><span class="attrib">(Jamie Johnson via Mikhail Khludnev)</span></li>
+ </ol>
+ </li>
+ <li><a id="v5.5.0.bug_fixes" href="javascript:toggleList('v5.5.0.bug_fixes')">Bug Fixes</a> (35)
+ <ol id="v5.5.0.bug_fixes.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8175">SOLR-8175</a>: Word Break Spellchecker would throw AIOOBE with certain queries containing
+ "should" clauses.
+<br /><span class="attrib">(Ryan Josal via James Dyer)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-2556">SOLR-2556</a>: The default spellcheck query converter was ignoring terms consisting entirely
+of digits.
+<br /><span class="attrib">(James Dyer)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8366">SOLR-8366</a>: ConcurrentUpdateSolrClient attempts to use response's content type as charset encoding
+for parsing exception.
+<br /><span class="attrib">(shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6271">SOLR-6271</a>: Fix ConjunctionSolrSpellChecker to not compare StringDistance by instance.
+<br /><span class="attrib">(Igor Kostromin via James Dyer)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7304">SOLR-7304</a>: Fix Spellcheck Collate to not invalidate range queries.
+<br /><span class="attrib">(James Dyer)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8373">SOLR-8373</a>: KerberosPlugin: Using multiple nodes on same machine leads clients to
+fetch TGT for every request
+<br /><span class="attrib">(Ishan Chattopadhyaya via noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8367">SOLR-8367</a>: Fix the LeaderInitiatedRecovery 'all replicas participate' fail-safe.
+<br /><span class="attrib">(Mark Miller, Mike Drob)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8401">SOLR-8401</a>: Windows start script fails when executed from a different drive.
+<br /><span class="attrib">(Nicolas Gavalda via Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6992">SOLR-6992</a>: Fix "Files" UI to show the managed-schema file as well.
+<br /><span class="attrib">(Shawn Heisey, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-2649">SOLR-2649</a>: MM ignored in edismax queries with operators.
+<br /><span class="attrib">(Greg Pendlebury, Jan Høydahl et. al. via Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8372">SOLR-8372</a>: Canceled recovery can rarely lead to inconsistent shards:
+If a replica is recovering via index replication, and that recovery fails
+(for example if the leader goes down), and then some more updates are received
+(there could be a few left to be processed from the leader that just went down),
+and then that replica is brought down, it will think it is up-to-date when
+restarted.
+<br /><span class="attrib">(shalin, Mark Miller, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8419">SOLR-8419</a>: TermVectorComponent for distributed search when distrib.singlePass could include term
+vectors for documents that matched the query yet weren't in the returned documents.
+<br /><span class="attrib">(David Smiley)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8015">SOLR-8015</a>: HdfsLock may fail to close a FileSystem instance if it cannot immediately
+obtain an index lock.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8422">SOLR-8422</a>: When authentication enabled, requests fail if sent to a node that doesn't host
+the collection
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8059">SOLR-8059</a>: &debug=results for distributed search when distrib.singlePass (sometimes activated
+automatically) could result in an NPE.
+<br /><span class="attrib">(David Smiley, Markus Jelsma)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8460">SOLR-8460</a>: /analysis/field could throw exceptions for custom attributes.
+<br /><span class="attrib">(David Smiley, Uwe Schindler)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8276">SOLR-8276</a>: Atomic updates and realtime-get do not work with non-stored docvalues.
+<br /><span class="attrib">(Ishan Chattopadhyaya, yonik via shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7462">SOLR-7462</a>: AIOOBE in RecordingJSONParser
+<br /><span class="attrib">(Scott Dawson, noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8494">SOLR-8494</a>: SimplePostTool and therefore the bin/post script cannot upload files larger than 2.1GB.
+<br /><span class="attrib">(shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8451">SOLR-8451</a>: We should not call method.abort in HttpSolrClient or HttpSolrCall#remoteQuery and
+HttpSolrCall#remoteQuery should not close streams.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8450">SOLR-8450</a>: Our HttpClient retry policy is too permissive.
+<br /><span class="attrib">(Mark Miller, shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8533">SOLR-8533</a>: Raise default maxUpdateConnections and maxUpdateConnectionsPerHost to 100k each.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8453">SOLR-8453</a>: Solr should attempt to consume the request inputstream on errors as we cannot
+count on the container to do it.
+<br /><span class="attrib">(Mark Miller, Greg Wilkins, yonik, Joakim Erdfelt)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-6279">SOLR-6279</a>: cores?action=UNLOAD now waits for the core to close before unregistering it from ZK.
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-2798">SOLR-2798</a>: Fixed local params to work correctly with multivalued params
+<br /><span class="attrib">(Demian Katz via hossman)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8541">SOLR-8541</a>: Highlighting a geo RPT field would throw an NPE instead of doing nothing.
+<br /><span class="attrib">(Pawel Rog via David Smiley)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8548">SOLR-8548</a>: Core discovery was not following symlinks
+<br /><span class="attrib">(Aaron LaBella via Alan
+Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8564">SOLR-8564</a>: Fix Embedded ZooKeeper to use <solrHome>/zoo_data for it's data directory
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8371">SOLR-8371</a>: Try and prevent too many recovery requests from stacking up and clean up some faulty
+cancel recovery logic.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8582">SOLR-8582</a> : memory leak in JsonRecordReader affecting /update/json/docs. Large payloads
+cause OOM
+<br /><span class="attrib">(noble, shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8605">SOLR-8605</a>: Regular expression queries starting with escaped forward slash caused
+an exception.
+<br /><span class="attrib">(Scott Blum, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8607">SOLR-8607</a>: The Schema API refuses to add new fields that match existing dynamic fields.
+<br /><span class="attrib">(Jan Høydahl, Steve Rowe)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8575">SOLR-8575</a>: Fix HDFSLogReader replay status numbers, a performance bug where we can reopen
+FSDataInputStream much too often, and an hdfs tlog data integrity bug.
+<br /><span class="attrib">(Mark Miller, Patrick Dvorack, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8651">SOLR-8651</a>: The commitWithin parameter is not passed on for deleteById in UpdateRequest in
+distributed queries
+<br /><span class="attrib">(Jessica Cheng Mallet via Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8551">SOLR-8551</a>: Make collection deletion more robust.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ </ol>
+ </li>
+ <li><a id="v5.5.0.optimizations" href="javascript:toggleList('v5.5.0.optimizations')">Optimizations</a> (4)
+ <ol id="v5.5.0.optimizations.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8501">SOLR-8501</a>: Specify the entity request size when known in HttpSolrClient.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8615">SOLR-8615</a>: Just like creating cores, we should use multiple threads when closing cores.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7281">SOLR-7281</a>: Add an overseer action to publish an entire node as 'down'.
+<br /><span class="attrib">(Mark Miller, shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8669">SOLR-8669</a>: Non binary responses use chunked encoding because we flush the outputstream early.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ </ol>
+ </li>
+ <li><a id="v5.5.0.other_changes" href="javascript:toggleList('v5.5.0.other_changes')">Other Changes</a> (54)
+ <ol id="v5.5.0.other_changes.list">
+ <li><a href="http://issues.apache.org/jira/browse/LUCENE-6900">LUCENE-6900</a>: Added test for score ordered grouping, and refactored TopGroupsResultTransformer.
+<br /><span class="attrib">(David Smiley)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8336">SOLR-8336</a>: CoreDescriptor now takes a Path for its instance directory, rather
+than a String
+<br /><span class="attrib">(Alan Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8351">SOLR-8351</a>: Improve HdfsDirectory toString representation
+<br /><span class="attrib">(Mike Drob via Gregory Chanan)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8321">SOLR-8321</a>: add a (SolrQueryRequest free) SortSpecParsing.parseSortSpec variant
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8338">SOLR-8338</a>: in OverseerTest replace strings such as "collection1" and "state" with variable
+or enum equivalent
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8333">SOLR-8333</a>: Several API tweaks so that public APIs were no longer refering to private classes
+<br /><span class="attrib">(ehatcher, Shawn Heisey, hossman)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8357">SOLR-8357</a>: UpdateLog.RecentUpdates now implements Closeable
+<br /><span class="attrib">(Alan Woodward)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8339">SOLR-8339</a>: Refactor SolrDocument and SolrInputDocument to have a common base abstract class
+called SolrDocumentBase. Deprecated methods toSolrInputDocument and toSolrDocument in ClientUtils.
+<br /><span class="attrib">(Ishan Chattopadhyaya via shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8353">SOLR-8353</a>: Support regex for skipping license checksums
+<br /><span class="attrib">(Gregory Chanan)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8313">SOLR-8313</a>: SimpleQueryParser doesn't use MultiTermAnalysis for Fuzzy Queries
+<br /><span class="attrib">(Tom Hill via Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8359">SOLR-8359</a>: Restrict child classes from using parent logger's state
+<br /><span class="attrib">(Jason Gerlowski, Mike Drob, Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8131">SOLR-8131</a>: All example config sets now explicitly use the ManagedIndexSchemaFactory
+instead of ClassicIndexSchemaFactory. This means that the Schema APIs ( /<collection>/schema )
+are enabled by default and the schema is mutable. The schema file will be called managed-schema
+<br /><span class="attrib">(Uwe Schindler, shalin, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8381">SOLR-8381</a>: Cleanup data_driven managed-schema and solrconfig.xml files. Commented out copyFields are removed
+and solrconfig.xml doesn't refer to field which are not defined.
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7774">SOLR-7774</a>: revise BasicDistributedZkTest.test logic w.r.t. 'commitWithin did not work on some nodes'
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8360">SOLR-8360</a>: simplify ExternalFileField.getValueSource implementation
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8387">SOLR-8387</a>: All example configs shipped with Solr explicitly use ManagedIndexSchemaFactory, the schema file will
+be called managed-schema instead of schema.xml . It is not advised to use hand edit the managed-schema. You should
+use the schema APIs instead ( /<collection>/schema ) . If you do not want this behaviour in the example configs,
+before you start solr rename managed-schema to schema.xml and change the schemaFactory in solrconfig.xml file
+to explicitly use ClassicIndexSchemaFactory instead : <schemaFactory class="ClassicIndexSchemaFactory"/>
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8305">SOLR-8305</a>: replace LatLonType.getValueSource's QParser use
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8388">SOLR-8388</a>: factor out response/TestSolrQueryResponse.java from servlet/ResponseHeaderTest.java
+more TestSolrQueryResponse.java tests; add SolrReturnFields.toString method, ReturnFieldsTest.testToString test;
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8383">SOLR-8383</a>: SolrCore.java + QParserPlugin.java container initialCapacity tweaks
+<br /><span class="attrib">(Christine Poerschke, Mike Drob)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/LUCENE-6925">LUCENE-6925</a>: add RandomForceMergePolicy class in test-framework
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8404">SOLR-8404</a>: tweak SolrQueryResponse.getToLogAsString, add TestSolrQueryResponse.testToLog
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8352">SOLR-8352</a>: randomise unload order in UnloadDistributedZkTest.testUnloadShardAndCollection
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8414">SOLR-8414</a>: AbstractDistribZkTestBase.verifyReplicaStatus could throw NPE
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8410">SOLR-8410</a>: Add all read paths to 'read' permission in RuleBasedAuthorizationPlugin
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8279">SOLR-8279</a>: Add a new test fault injection approach and a new SolrCloud test that stops and starts the cluster
+while indexing data and with random faults.
+<br /><span class="attrib">(Mark Miller)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8419">SOLR-8419</a>: TermVectorComponent for distributed search now requires a uniqueKey in the schema. Also, it no longer
+returns "uniqueKeyField" in the response.
+<br /><span class="attrib">(David Smiley)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8317">SOLR-8317</a>: add & use responseHeader and response accessors to SolrQueryResponse.
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8452">SOLR-8452</a>: replace "partialResults" occurrences with SolrQueryResponse.RESPONSE_HEADER_PARTIAL_RESULTS_KEY
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8454">SOLR-8454</a>: ZkStateReader logging improvements and cleanup of dead code
+<br /><span class="attrib">(Shai Erera, Anshum Gupta)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8455">SOLR-8455</a>: RecovertStrategy logging improvements and sleep-between-recovery-attempts bug fix.
+<br /><span class="attrib">(Shai Erera)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8481">SOLR-8481</a>: TestSearchPerf no longer needs to duplicate SolrIndexSearcher.(NO_CHECK_QCACHE|NO_CHECK_FILTERCACHE)
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8486">SOLR-8486</a>: No longer require jar/unzip for bin/solr
+<br /><span class="attrib">(Steven E. Harris, janhoy)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8483">SOLR-8483</a>: relocate 'IMPORTANT NOTE' in open-exchange-rates.json test-file to avoid
+OpenExchangeRatesOrgProvider.java warnings
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8489">SOLR-8489</a>: TestMiniSolrCloudCluster.createCollection to support extra & alternative collectionProperties
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8482">SOLR-8482</a>: add & use QueryCommand.[gs]etTerminateEarly accessors.
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8498">SOLR-8498</a>: Improve error message when a large value is stored in an indexed string field.
+<br /><span class="attrib">(shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8484">SOLR-8484</a>: refactor update/SolrIndexConfig.LOCK_TYPE_* into core/DirectoryFactory.LOCK_TYPE_*
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8504">SOLR-8504</a>: (IndexSchema|SolrIndexConfig)Test: private static finals for
+solrconfig.xml and schema.xml String literals.
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8505">SOLR-8505</a>: core/DirectoryFactory.LOCK_TYPE_HDFS - add & use it instead of String literals
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7042">SOLR-7042</a>: bin/post now uses /update/json/docs for application/json content types, including support for
+.jsonl (JSON Lines) files.
+<br /><span class="attrib">(Erik Hatcher and shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8476">SOLR-8476</a>: Refactor and cleanup CoreAdminHandler
+<br /><span class="attrib">(noble, Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8535">SOLR-8535</a>: Support forcing define-lucene-javadoc-url to be local
+<br /><span class="attrib">(Gregory Chanan)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8549">SOLR-8549</a>: Solr start script checks for cores which have failed to load as well before attempting to
+create a core with the same name
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8555">SOLR-8555</a>: SearchGroupShardResponseProcessor (initialCapacity) tweaks
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/LUCENE-6978">LUCENE-6978</a>: Refactor several code places that lookup locales
+by string name to use BCP47 locale tag instead. LuceneTestCase
+now also prints locales on failing tests this way. In addition,
+several places in Solr now additionally support BCP47 in config
+files.
+<br /><span class="attrib">(Uwe Schindler, Robert Muir)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7907">SOLR-7907</a>: Remove CLUSTERSTATUS related exclusivity checks while running commands in the Overseer because the
+CLUSTERSTATUS request is served by the individual nodes itself and not via the Overseer node
+<br /><span class="attrib">(Varun Thacker)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8566">SOLR-8566</a>: various initialCapacity tweaks (Fix Versions: trunk 5.5)
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8565">SOLR-8565</a>: add & use CommonParams.(ROWS|START)_DEFAULT constants
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8595">SOLR-8595</a>: Use BinaryRequestWriter by default in HttpSolrClient and ConcurrentUpdateSolrClient.
+<br /><span class="attrib">(shalin)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8597">SOLR-8597</a>: add default, no-op QParserPlugin.init(NamedList) method
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7968">SOLR-7968</a>: Make QueryComponent more extensible.
+<br /><span class="attrib">(Markus Jelsma via David Smiley)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8600">SOLR-8600</a>: add & use ReRankQParserPlugin parameter [default] constants,
+changed ReRankQuery.toString to use StringBuilder.
+<br /><span class="attrib">(Christine Poerschke)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8308">SOLR-8308</a>: Core gets inaccessible after RENAME operation with special characters
+<br /><span class="attrib">(Erik Hatcher, Erick Erickson)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-3141">SOLR-3141</a>: Warn in logs when expensive optimize calls are made
+<br /><span class="attrib">(yonik, janhoy)</span></li>
+ </ol>
+ </li>
+</ul>
+<h3><a id="v5.4.1" href="javascript:toggleList('v5.4.1')">Release 5.4.1 [2016-01-23]</a></h3>
+<ul id="v5.4.1.list">
+ <li><a id="v5.4.1.bug_fixes" href="javascript:toggleList('v5.4.1.bug_fixes')">Bug Fixes</a> (7)
+ <ol id="v5.4.1.bug_fixes.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8460">SOLR-8460</a>: /analysis/field could throw exceptions for custom attributes.
+<br /><span class="attrib">(David Smiley, Uwe Schindler)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8373">SOLR-8373</a>: KerberosPlugin: Using multiple nodes on same machine leads clients to
+fetch TGT for every request
+<br /><span class="attrib">(Ishan Chattopadhyaya via noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8059">SOLR-8059</a>: &debug=results for distributed search when distrib.singlePass (sometimes activated
+automatically) could result in an NPE.
+<br /><span class="attrib">(David Smiley, Markus Jelsma)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8422">SOLR-8422</a>: When authentication enabled, requests fail if sent to a node that doesn't host
+the collection
+<br /><span class="attrib">(noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7462">SOLR-7462</a>: AIOOBE in RecordingJSONParser
+<br /><span class="attrib">(Scott Dawson, noble)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8496">SOLR-8496</a>: SolrIndexSearcher.getDocSet(List<Query>) incorrectly included deleted documents
+when all of the queries were uncached (or there was no filter cache). This caused
+multi-select faceting (including the JSON Facet API) to include deleted doc counts
+when the remaining non-excluded filters were all uncached. This bug was first introduced in 5.3.0
+<br /><span class="attrib">(Andreas Müller, Vasiliy Bout, Erick Erickson, Shawn Heisey, Hossman, yonik)</span></li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8418">SOLR-8418</a>: Adapt to changes in <a href="http://issues.apache.org/jira/browse/LUCENE-6590">LUCENE-6590</a> for use of boosts with MLTHandler and
+Simple/CloudMLTQParser
+<br /><span class="attrib">(Jens Wille, Ramkumar Aiyengar)</span></li>
+ </ol>
+ </li>
+ <li><a id="v5.4.1.new_features" href="javascript:toggleList('v5.4.1.new_features')">New Features</a> (1)
+ <ol id="v5.4.1.new_features.list">
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8470">SOLR-8470</a>: Make TTL of PKIAuthenticationPlugin's tokens configurable through a system property
+(pkiauth.ttl)
+<br /><span class="attrib">(noble)</span></li>
+ </ol>
+ </li>
+</ul>
+<h3><a id="v5.4.0" href="javascript:toggleList('v5.4.0')">Release 5.4.0 [2015-12-14]</a></h3>
+<ul id="v5.4.0.list">
+ <li>Consult the <a href="http://lucene.apache.org/core/6_0_0/changes/Changes.html">LUCENE_CHANGES.txt</a> file for additional, low level, changes in this release
+</li>
+ </li>
+ <li><a id="v5.4.0.versions_of_major_components" href="javascript:toggleList('v5.4.0.versions_of_major_components')">Versions of Major Components</a> (6)
+ <ol id="v5.4.0.versions_of_major_components.list">
+ <li>Apache Tika 1.7
+</li>
+ <li>Carrot2 3.10.4
+</li>
+ <li>Velocity 1.7 and Velocity Tools 2.0
+</li>
+ <li>Apache UIMA 2.3.1
+</li>
+ <li>Apache ZooKeeper 3.4.6
+</li>
+ <li>Jetty 9.2.13.v20150730
+</li>
+ </ol>
+ </li>
+ <li><a id="v5.4.0.upgrading_from_solr_5.3" href="javascript:toggleList('v5.4.0.upgrading_from_solr_5.3')">Upgrading from Solr 5.3</a> (4)
+ <ol id="v5.4.0.upgrading_from_solr_5.3.list">
+ <li>DefaultSimilarityFactory has been renamed to ClassicSimilarityFactory to match the underlying rename of
+DefaultSimilarity to ClassicSimilarity and the (eventual) move away from using it as a default.
+If you currently have DefaultSimilarityFactory explicitly referenced in your schema.xml, you will now get
+a warning urging you to edit your config to use the functionally identical ClassicSimilarityFactory.
+DefaultSimilarityFactory will be removed completely in Solr 6. See <a href="http://issues.apache.org/jira/browse/SOLR-8239">SOLR-8239</a> for more details.
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-7859">SOLR-7859</a>: The following APIs are now deprecated:
+<ul class="bulleted-list">
+<li class="bulleted-list">
+SolrCore.getStartTime: Use SolrCore.getStartTimeStamp instead.
+</li>
+<li class="bulleted-list">
+SolrIndexSearcher.getOpenTime: Use SolrIndexSearcher.getOpenTimeStamp instead.
+</li>
+</ul>
+<p/>
+</li>
+ <li><a href="http://issues.apache.org/jira/browse/SOLR-8307">SOLR-8307</a>: EmptyEntityResolver was moved from core to solrj, and moved from the org.apache.solr.util
+package to org.apache.solr.common. If you are using this class, you will need to adjust the import package.
+<p/>
+</li>
+ <li>Logger declarations in most source files have changed to code that
+no longer needs to explicitly state the class name. This fixes situations
+where a logger for a different class was incorrectly used. See <a href="http://issues.apache.org/jira/browse/SOLR-8324">SOLR-8324</a>
+and its sub-issues for details.
+<p/>
+</li>
+ </ol>
+ </li>
+ <h4>Detailed Change List</h4>
+ <li><a id="v5.4.0.new_features" href="javascript:toggleList('v5.4.0.new_features')">New Features</a> (21)
+ <ol id="v5.4.0.new_features.list">
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