Elasticsearch: v9.4.7 Release

44 Commits in this Release

Ordered by the degree to which they evolved the repo in this version.

[9.4] Add an option to limit the number of characters in analyze filters (#158713) (#158834)

Authored September 9, 2026

[9.4] Update knn query automatic pre-filtering to handle exists queries on inference fields (#158296) (#158395)

Authored September 2, 2026

[9.4] Migrate ML multi-cluster security tests to JUnit rule (#157458) (#157487)

Authored August 26, 2026

[9.4] Audit: reject oversized request bodies (#157760) (#157954)

Authored August 28, 2026

Component template chunked response (#158175) (#158257)

Authored September 1, 2026

[9.4] Cache computed write load proportions in RoutingAllocation (#156635) (#157720)

Authored August 28, 2026

[9.4] Fix composite agg on doc values skipper fields (#158149)

Authored August 31, 2026

[9.4] Fix backwards read of _ignored_source doc values (#157798) (#157826)

Authored August 27, 2026

[9.4] Fix flaky relocated id generation in ActiveReadersTests (#158129) (#158165)

Authored August 31, 2026

ESQL: Return 400 for unresolved MMR query vector (#158301) (#158541)

Authored September 4, 2026

Fix bfloat16 reading from old index versions with endianness mismatches (#157730) (#157815)

Authored August 26, 2026

Improve failure handling for shards (#156515) (#156819)

Authored September 1, 2026

Bump versions after 8.19.21 release

Authored September 3, 2026

Fixed flaky FallbackSyntheticSourceBlockLoaderTests (#158204)

Authored August 31, 2026

[9.4] Fix SmokeTestWatcherTestSuiteIT#testMonitorClusterHealth (#151446) (#158229)

Authored September 1, 2026

Mute org.elasticsearch.xpack.security.CoreWithSecurityClientYamlTestSuiteIT test {yaml=search.highlight/30_max_analyzed_offset/Plain highlighter on a field WITH OFFSETS exceeding index.highlight.max_analyzed_offset should FAIL} #158519

Authored September 4, 2026

Mute org.elasticsearch.xpack.transform.integration.TransformDestIndexIT testUnattendedTransformDestIndexCreatedDuringUpdate_EmptySourceIndex_NoDeferValidation #152599

Authored September 1, 2026

Mute org.elasticsearch.search.fieldcaps.FieldCapsHasValueTests testUnmappedFieldsWithValueAfterRestart #158359

Authored September 2, 2026

Mute org.elasticsearch.compute.aggregation.SumDenseVectorGroupingAggregatorFunctionTests testManyInitialManyPartialFinalRunner #158614

Authored September 6, 2026

Mute org.elasticsearch.xpack.inference.external.http.sender.RequestExecutorServiceTests testExecute_Throws_WhenRateLimitedQueueIsFull #158627

Authored September 7, 2026

Mute org.elasticsearch.action.admin.indices.forcemerge.ForceMergeBlocksIT testForceMergeWithBlocks #158626

Authored September 7, 2026

Mute org.elasticsearch.action.RejectionActionIT testSimulatedSearchRejectionLoad #158625

Authored September 7, 2026

Mute org.elasticsearch.script.mustache.MultiSearchTemplateIT testLargeMsearchTemplateDoesNotOom #158428

Authored September 8, 2026

Bump QueryLoggingTemplateRegistry version (#158294) (#158321)

Authored September 1, 2026

Fixing delete and update by query yaml rest tests (#158587) (#158755)

Authored September 9, 2026

Honor pruning in the _shard_doc sort comparator (#157044) (#157966)

Authored August 28, 2026

Install tar in the default Docker image (#158361) (#158445)

Authored September 3, 2026

DataStreamAutoShardingService.calculate() works on stale data [#134505] (#157634) (#157975)

Authored August 28, 2026

Fix a race condition in the WatcherLifeCycleService (#153737) (#157837)

Authored August 27, 2026

Guard against protobuf label/attribute fan-out (#157968) (#158833)

Authored September 9, 2026

Catch StackOverflowException in the KqlParser (#158830) (#158837)

Authored September 9, 2026

SQL: Fix result size limit check on INSERT (#157752) (#157866)

Authored August 27, 2026

Change the XContent serialization order to match 9.1 (#158642) (#158671)

Authored September 7, 2026

Update wolfi (versioned) (#158751)

Authored September 8, 2026

[CI] Exclude mmdb files from test artifacts (#158667) (#158684)

Authored September 8, 2026

Parse inner KNN queries as inner queries, so the context is not lost (#158836) (#158843)

Authored September 9, 2026

Update wolfi (versioned) (#158289)

Authored September 1, 2026

Skip audit logging for protobuf endpoints (#157666) (#158172)

Authored September 1, 2026

Fix synthetic _id getMax on relocation prewarm (#158537) (#158807)

Authored September 9, 2026

Lower logs-elasticsearch.querylog@template priority to avoid conflicts (#158188) (#158198)

Authored August 31, 2026