Elasticsearch: v9.5.6 Release

212 Commits in this Release

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

[9.5] ES|QL|DS: Constrain the S3 endpoint settings to supported AWS hosts (#159657, #158640, #160341) (#162808)

Authored October 27, 2026

[9.5] ESQL:DS: Bind external sources to registered datasets on data nodes (#162545) (#162756)

Authored October 21, 2026

ESQL:DS: Authorize datasets named by received compute plans (#162687) (#162802)

Authored October 21, 2026

refactor(build): extract distribution build domain model (#162327) (#162697)

Authored October 20, 2026

[9.5] apply field visibility to constant_keyword (#159351) (#161384)

Authored October 9, 2026

[9.5] Bound recovery VBCC by maxGenerationToUpload (#159562) (#162232)

Authored October 20, 2026

Fix knn nested pre-filter handling when querying inference fields (#162532) (#162580)

Authored October 19, 2026

Unify application of index setting providers (#161250) (#161548)

Authored October 12, 2026

[9.5] Fix inference field highlighting when values come from direct assignment and copy_to (#161156) (#161476)

Authored October 9, 2026

Separate deltas from reduced states in rate (#154649) (#156208)

Authored October 11, 2026

Bound script params in reindex and update-by-query task descriptions (#162131) (#162620)

Authored October 20, 2026

Use classic hits when chunked fetch falls back to a classic fetch (#162396) (#162954)

Authored October 22, 2026

ESQL:DS: Avoid federated scans on index nodes (#158502) (#163839)

Authored October 28, 2026

OTel SDK and contrib version update (#155387) (#161311)

Authored October 9, 2026

Deduplicate terms lookup fetches (#159241) (#160997)

Authored October 5, 2026

[9.5] HollowEngine ensures uploaded generation on flush (#153751) (#163185)

Authored October 23, 2026

[9.5] Make OptOutQueryCache field-aware when deciding cacheability (#163614) (#163749)

Authored October 28, 2026

DLM is not granted permission to manage restricted indices, but it does not know this [#139158] (#160754) (#161825)

Authored October 13, 2026

Fix stale role cache after invalidation (#162537)

Authored October 20, 2026

Prune changelogs after 9.4.8 release

Authored October 8, 2026

Prevent SO in automatic KNN prefilter (#162315) (#162574)

Authored October 19, 2026

[9.5] Report leaked context details in assertNoInFlightContext (#159576) (#160962)

Authored October 4, 2026

[9.5] Replace node restarts with network isolation in resharding disruption tests

Authored October 5, 2026

Avoid nested listeners in doc-partitioning cache (#158910) (#159246)

Authored October 11, 2026

Migrate eql ccs-rolling-upgrade to JUnit rule cluster (#157705) (#161342)

Authored October 9, 2026

Fix InferIsNotNull (#155172) (#163355)

Authored October 26, 2026

Reject migration to TSDB from non-standard data streams (#161905) (#161992) (#162438)

Authored October 19, 2026

fix(ci): scope muted test excludes per task (#161163) (#162437)

Authored October 18, 2026

[9.5] [Inference API] Handle null rate limit settings (#160806) (#160876)

Authored October 16, 2026

Revert "[9.5] Keep the columnar_stored _source blob under source filters (#16…" (#163079)

Authored October 23, 2026

[9.5] Fix wait_for_checkpoints timeout racing with checkpoint validation (#163358) (#163399)

Authored October 26, 2026

Verify enrollment TLS leaf chains to pinned CA (#160525) (#161046)

Authored October 5, 2026

apply fls to constant_keyword in percolate queries at runtime (#162302) (#162822)

Authored October 21, 2026

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

Authored October 20, 2026

Add a check for the correct name on future ClientYamlTestCandidate parameters (#161759) (#161882)

Authored October 13, 2026

[9.5] Keep the columnar_stored _source blob under source filters (#162935) (#163034)

Authored October 23, 2026

Charge locally fetched hits to the request breaker only once (#162651) (#162921)

Authored October 22, 2026

[9.5] Fix flaky reload assertion in IndicesRequestCacheTests (#160919) (#160980)

Authored October 5, 2026

ESQL:DS: Register allowed_endpoint_hosts setting (#163441)

Authored October 27, 2026

Fix dis_max double-charging the request breaker (#158147) (#161301)

Authored October 8, 2026