Elasticsearch: v9.4.9 Release

139 Commits in this Release

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

[9.4] Gemini 3 thought signatures (#160167) (#160910)

Authored October 20, 2026

refactor(build): extract distribution build domain model (#162327) (#162698)

Authored October 20, 2026

[9.4] ES|QL: Fix use-after-close in BlockArrowFormatter (#162376) (#163177)

Authored October 23, 2026

Unify application of index setting providers (#161250) (#161551)

Authored October 13, 2026

[9.4] Fix inference field highlighting when values come from direct assignment and copy_to (#161156) (#161533)

Authored October 9, 2026

Release scroll contexts when index removed (#161556) (#163754)

Authored October 28, 2026

Fix stale role cache after invalidation (#162542)

Authored October 20, 2026

[9.4] Fix knn nested pre-filter handling when querying inference fields (#162532) (#162581)

Authored October 20, 2026

Quantize shape bounds after taking the envelope (#163137)

Authored October 23, 2026

Fix InferIsNotNull (elastic#155172) (#163360)

Authored October 26, 2026

[9.4] Make OptOutQueryCache field-aware when deciding cacheability (#163614) (#163751)

Authored October 28, 2026

[9.4] apply field visibility to constant_keyword (#159351) (#161386)

Authored October 9, 2026

[9.4] Report leaked context details in assertNoInFlightContext (#159576) (#160961)

Authored October 4, 2026

Return 400 when intervals rule expands too far (#162833) (#163508)

Authored October 27, 2026

Logging version conflict as debug level (#160686) (#160749)

Authored October 1, 2026

Data streams API: reduce scope of setting resolution (#161993) (#162342)

Authored October 18, 2026

DLM is not granted permission to manage restricted indices, but it does not know this [#139158] (#160754) (#161828)

Authored October 13, 2026

ESQL: Don't hide remote field-caps failures (#162640) (#163375)

Authored October 26, 2026

Add a check for the correct name on future ClientYamlTestCandidate parameters (#161759) (#161887)

Authored October 13, 2026

Fix TS null filtering for computed inputs (#162293)

Authored October 16, 2026

Bound the input in boolean and ip parse errors (#163033) (#163190)

Authored October 23, 2026

[9.4] Bump the build-tools jackson to 2.21.7 (#162238)

Authored October 15, 2026

[TSDB] not all documents with invalid timestamps are redirected to the failure store

Authored October 8, 2026

[9.4] Fix BinaryDvConfirmedQuery.fromFuzzyQuery with non-ASCII patterns (#160933) (#161037)

Authored October 6, 2026

Upgrade qa/vector opentelemetry dependency for security vulnerability (#152225) (#160499)

Authored October 1, 2026

apply fls to constant_keyword in percolate queries at runtime (#162302) (#162824)

Authored October 21, 2026

Fix shard-recovering race in CrossClusterAsyncSearchIT setup (#160736) (#160966)

Authored October 4, 2026

RerankOperatorTests testInferenceFailure - Ensuring non null page for inference requests (#154704) (#161059)

Authored October 5, 2026

[9.4] Gracefully handle threadpool shutdown when failing local shard after demotion (#161592) (#162559)

Authored October 19, 2026

Add Ubuntu 26.04 to the periodic pipelines (#161410) (#161824)

Authored October 13, 2026

Bound script params in reindex and update-by-query task descriptions (#162131) (#162625)

Authored October 20, 2026

Bump snappy-java to 1.1.10.11 (#161310) (#161437)

Authored October 8, 2026

[9.4] chore(Build) Avoid cross-project root plugin applies for Isolated Projects (#162432) (#162445)

Authored October 23, 2026

[9.4] [Test] Fix assumption in RecyclerBytesStreamOutputTests (#161441) (#161573)

Authored October 9, 2026

Remove orphaned storage-engine test mutes (#163437)

Authored October 26, 2026

unmute MlJobIT.testPutJob_GivenFarequoteConfig (#163181)

Authored October 23, 2026

Prevent bulk response wire test generating invalid transport version (#162685) (#163019)

Authored October 22, 2026

Update KeyStoreUtil to avoid race in X500Principal (#161141) (#161559)

Authored October 9, 2026

fix MultiSearchTemplateIT noop breaker flake, unmute (#160791) (#160879)

Authored October 2, 2026

[9.4] Fix shard lock race in AsyncSearchIntegTestCase teardown (#160640) (#160894)

Authored October 2, 2026