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Elasticsearch v9.4.7

Elasticsearch: v9.4.7 Release

Release date:
September 9, 2026
Previous version:
v9.4.6 (released August 26, 2026)
Magnitude:
2,568 Diff Delta
Contributors:
22 total committers
Data confidence:
Commits:
45 impacting commits

45 Commits in this Release

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

[9.4] msearch/template parity with msearch: memory bounds, cancellation, metrics (#157642) (#158557)
Authored September 7, 2026
[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
Install tar in the default Docker image (#158361) (#158445)
Authored September 3, 2026
Honor pruning in the _shard_doc sort comparator (#157044) (#157966)
Authored August 28, 2026
DataStreamAutoShardingService.calculate() works on stale data [#134505] (#157634) (#157975)
Authored August 28, 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
Fix a race condition in the WatcherLifeCycleService (#153737) (#157837)
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
Fix synthetic _id getMax on relocation prewarm (#158537) (#158807)
Authored September 9, 2026
Skip audit logging for protobuf endpoints (#157666) (#158172)
Authored September 1, 2026

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Top Contributors in v9.4.7

eranweiss-elastic
lefteris-z
Mikep86
breskeby
nicktindall
kkrik-es
gmarouli
martijnvg
jordan-powers
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