Elasticsearch: v9.5.4 Release

44 Commits in this Release

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

[9.5] msearch/template parity with msearch: memory bounds, cancellation, metrics (#157642) (#158556)

Authored September 7, 2026

[9.5] Fix LIKE/RLIKE list of patterns on non-indexed keyword and wildcard fields (#158355)

Authored September 3, 2026

Prune changelogs after 9.4.6 release

Authored September 2, 2026

[9.5] Cap min_hash filter params to prevent overflow and OOM (#158297)

Authored September 1, 2026

Fix race condition in SigtermTerminationHandler (#152214) (#158624)

Authored September 7, 2026

[CI] Resolve ml-cpp artifacts via DRA build id (#158568) (#158863)

Authored September 9, 2026

[9.5] Fix for test race (#157621) (#158379)

Authored September 2, 2026

Fixing delete and update by query yaml rest tests (#158587) (#158756)

Authored September 8, 2026

[9.5] Fix incorrect results with COUNT(mv_field) on not indexed numeric/date (#158522)

Authored September 8, 2026

Mute org.elasticsearch.xpack.esql.CsvColumnarIT test {csv-spec:fuse.fuseWithRowLinearAndMultiValueScoreColumn} #158511

Authored September 4, 2026

Mute org.elasticsearch.multiproject.test.CoreWithMultipleProjectsClientYamlTestSuiteIT test {yaml=update_by_query/10_basic/Response for version conflict with conflicts=proceed} #158337

Authored September 2, 2026

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

Authored September 7, 2026

Mute org.elasticsearch.common.logging.DeprecationLoggerTests testMultipleSlowLoggersUseSingleLog4jLogger #158695

Authored September 8, 2026

Mute org.elasticsearch.xpack.stateless.StatelessHollowIndexShardsIT testStressWithRelocationOrObjectStoreFailures #156569

Authored September 3, 2026

Mute org.elasticsearch.xpack.esql.expression.function.scalar.string.ReverseTests testFold {TestCase=<long unicode TEXT>} #158699

Authored September 8, 2026

Mute org.elasticsearch.xpack.esql.expression.function.scalar.string.ReverseTests testFold {TestCase=<long unicode KEYWORD>} #158700

Authored September 8, 2026

Mute org.elasticsearch.snapshots.SnapshotResiliencyTests testConcurrentSnapshotDeleteAndDeleteIndex #158512

Authored September 4, 2026

Mute org.elasticsearch.xpack.stateless.commits.VirtualBatchedCompoundCommitsIT testGetVirtualBatchedCompoundCommitIfPrimaryRelocates #158593

Authored September 5, 2026

Mute org.elasticsearch.common.LocalTimeOffsetTests testOverlap #158343

Authored September 2, 2026

Update knn query automatic pre-filtering to handle exists queries on inference fields (#158296) (#158394)

Authored September 2, 2026

Unmute stats_sample spatial tests on 9.5 (#158460)

Authored September 4, 2026

Mute org.elasticsearch.xpack.stateless.shutdown.SigtermTerminationHandlerTests testShutdownBlockIgnoreOtherRoles #158594

Authored September 5, 2026

Unmute reindex tests implicitly fixed by another PR (#158476) (#158483)

Authored September 3, 2026

ESQL: Return 400 for unresolved MMR query vector (#158301) (#158542)

Authored September 4, 2026

ESQL: Fix and unmute BulkArrowAggregationTest (#158055) (#158487)

Authored September 4, 2026

Install tar in the default Docker image (#158361) (#158447)

Authored September 3, 2026

Unmute more tests in CsvColumnarIT test suite. 0

Authored September 3, 2026

Add changelog for bug fix #158175 (#158280) (#158352)

Authored September 2, 2026

[CI] Exclude mmdb files from test artifacts (#158667) (#158686)

Authored September 7, 2026

Change the XContent serialization order to match 9.1 (#158642) (#158672)

Authored September 7, 2026

Add doc-values fallback for unsigned_long queries (#158545) (#158657)

Authored September 7, 2026

ESQL: Increase ParquetCompressedFormatSpecIT timeout (#158266) (#158288)

Authored September 1, 2026

Unmuting test that was fixed in a backport (#158771)

Authored September 8, 2026

[9.5] ESQL: remove stale columnar test masks (#158543)

Authored September 8, 2026

Fix ESIntegTestCase.assertSameDocIdsOnShards (#158261) (#158295)

Authored September 1, 2026

Bump QueryLoggingTemplateRegistry version (#158294) (#158320)

Authored September 1, 2026

Fix synthetic _id getMax on relocation prewarm (#158537) (#158808)

Authored September 9, 2026

[Doc] Add notes about all privileges (#158141) (#158806)

Authored September 9, 2026

Add security stats to monitoring mapping (#155552) (#155564)

Authored September 1, 2026

Parse inner KNN queries as inner queries, so the context is not lost (#158836) (#158844)

Authored September 9, 2026