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Elasticsearch v9.4.4

Elasticsearch: v9.4.4 Release

Release date:

July 15, 2026

Previous version:

v9.4.3 (released June 24, 2026)

Magnitude:

3,367 Diff Delta

Contributors:

45 total committers

Data confidence:

Commits:

117

117 Commits in this Release

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

[9.4] Roll reindexed ML state indices in daily maintenance (#149555) (#153063)

Authored July 7, 2026

[ES|QL] Revert GROK watchdog wire serialization (9.4) (#152634)

Authored July 1, 2026

[9.4] Remove flaky tests of unreleased functionality (#152683)

Authored July 1, 2026

[9.4] Add ArchUnit architecture checks for build logic (#151906) (#151993)

Authored June 25, 2026

[9.4] [ML] Retry audit on failures (#146399) | [Transform] Retry audit index creation (#147754) (#153160)

Authored July 7, 2026

Prune changelogs after 9.4.3 release

Authored July 1, 2026

ES|QL: implement watchdog timeout for GROK (#152851) (#152944)

Authored July 6, 2026

[ES|QL] Call Project.output() if all Project.expressionsResolved() is true (#151697) (#152174)

Authored June 25, 2026

[9.4] Fix flattened field array-offset corruption with preserve_leaf_arrays: exact (#153043) (#153059)

Authored July 7, 2026

[ML] Make test data deterministic (#146423) (#152149)

Authored June 25, 2026

[9.4] [Build] Migrate transform multinode tests to testcluster framework (#150330) (#153842)

Authored July 14, 2026

Fix flaky testWriteLargeBlob in AzureBlobContainerRetriesTests (#152963)

Authored July 6, 2026

upgrade microsoft-graph dependency in ms-graph-authz (#151968) (#152273)

Authored June 26, 2026

Include ingest metadata in self reference checks (#152932) (#153274)

Authored July 8, 2026

Upgrade Jackson to 2.18.8 (#152163) (#153456)

Authored July 9, 2026

trivial hardening of data uri validation (#152664) (#152772)

Authored July 2, 2026

Aggs: Avoid OOMs by accounting memory on cardinality agg reduction phase (#152773) (#152991)

Authored July 6, 2026

[9.4] Updating IntervalQueryBuilderTests to prevent too many clauses error (#150321) (#153832)

Authored July 14, 2026

[Security] Fix clone API key dropping metadata after null expiration (#152874) (#153218)

Authored July 8, 2026

Fix inlinestats double release (#153171) (#153729)

Authored July 13, 2026

ES|QL: implement watchdog timeout for GROK (#152170) (#152276)

Authored June 26, 2026

[ML] Fix ML jobs stuck in starting state on Serverless trial projects (#150362) (#152970)

Authored July 6, 2026

improve simulate bulk action authz (#152148) (#152261)

Authored June 26, 2026

ESQL: Solves NoSuchElementException in ViewUnionAll analyzer retries (#152867) (#152900)

Authored July 3, 2026

[9.4] Bump CCS YAML suite timeouts on encryption-at-rest (#147719) (#152950)

Authored July 6, 2026

[9.4] Disable flaky testSnapshotWithLargeSegmentFiles (#153271)

Authored July 8, 2026

Bump versions after 9.3.7 release

Authored June 30, 2026

[9.4] Fix flaky t-digest sparse Gaussian median test (#153534) (#153762)

Authored July 14, 2026

[9.4] Stabilize Mistral not-found unit test (#152417)

Authored June 29, 2026

[9.4] Fix reader context close race in markAsUsed (#152289) (#152393)

Authored June 29, 2026

[9.4] [Inference API] Prevent overriding secret_parameters (#153309) (#153445)

Authored July 9, 2026

Add more defensive protections when parsing query_string (#152385) (#152468)

Authored June 30, 2026

[9.4] Fork ensureShardSearchActive callbacks off the refresh thread (#152509) (#152959)

Authored July 6, 2026

Unmute TransportVersionTests.testPatchVersionsStillAvailable (#152209)

Authored June 25, 2026

Unmute RankEvalRequestIT.testIndicesOptions (#153011)

Authored July 7, 2026

rotate ms-graph-authz third party credentials (#152410) (#152482)

Authored June 30, 2026

Fix term generator in SyntheticIdTests (#151785) (#153703)

Authored July 13, 2026

Fix ExchangeServiceTests (#150947) (#153709)

Authored July 13, 2026

Unmute TransportVersionValidationFuncTest on Windows (#152224)

Authored June 25, 2026

[9.4] [Gradle] Allow disabling muted tests via -Dtests.mutes.enabled=false (#152948) (#153070)

Authored July 7, 2026

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Top Contributors in v9.4.4

edsavage

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Release Notes Published

Downloads: https://elastic.co/downloads/elasticsearch Release notes: https://www.elastic.co/docs/release-notes/elasticsearch#elasticsearch-9.4.4-release-notes