Elasticsearch: v9.3.5 Release

125 Commits in this Release

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

[Gradle] Cleanup on build logic integration testing and build documentation (#142614) (#148577)

Authored May 8, 2026

[9.3] Aggs: Account aggs uncompressed size on coordinator reduction (#148885) (#149732)

Authored May 22, 2026

[9.3] GPU codec: fall back to CPU graph build on flush when GPU is busy (#149373) (#149476)

Authored May 20, 2026

[Inference API] Add inference id to the timeout string and use internal timeout exception (#146531) (#148204)

Authored May 4, 2026

[9.3] [Inference API] Fix inference initialization thread exhaustion (#147063) (#148153)

Authored May 4, 2026

[9.3] Fix race in TickerScheduleTriggerEngine by checking watcher to node allocation (#148402)

Authored May 6, 2026

[9.3] Migrate to log4j2 annotation processor for plugins (#136983) (#148686)

Authored May 12, 2026

[9.3] Remove remaining Security Manager artifacts (#146569) (#147471)

Authored April 27, 2026

[9.3] Add logging tracking to _xpack/usage (#148087) (#149001)

Authored May 13, 2026

[Transform] Propagate deprecation warnings (#147934) (#148996)

Authored May 13, 2026

Do not enable doc-partitioning for count (#143544) (#149236)

Authored May 16, 2026

[9.3] Improve inference field gathering performance during rewrite (#149539) (#149590)

Authored May 21, 2026

Pre-allocate full capacity for first few buckets in HLL (#142363) (#149238)

Authored May 16, 2026

Use search threadpool for coordination in ES|QL (#149034) (#149192)

Authored May 15, 2026

ESQL: Retain _timeseries in ReplaceFieldWithConstantOrNull (#147990)

Authored April 30, 2026

ESQL: Avoid local physical optimization in node-reduce driver (#146509) (#147766)

Authored April 28, 2026

Move flaky assertion to IT from yamlRestTest (#147834) (#147878)

Authored April 29, 2026

[9.3] Fix deriv aggregation function intermediate state (#146160) (#146381)

Authored April 24, 2026

[9.3] Upgrade to log4j 2.26.0 (#132166) (#148940)

Authored May 13, 2026

[9.3] ESQL: Fix nullify under join and enrich (#145743) (#147817)

Authored April 29, 2026

Implement RerankingInferenceService for Elastic service (#148365) (#148526)

Authored May 7, 2026

Honor task settings for Google Vertex chat completion (#149268) (#149731)

Authored May 22, 2026

Restore TEXT field size estimate for Enrich and LookupJoin (#147357) (#147385)

Authored April 24, 2026

ESQL: fix FROM *_logs index name validation (#149395) (#149424)

Authored May 19, 2026

ESQL: Disallow empty lists in named params, only (#147748) (#148069)

Authored April 30, 2026

[9.3] ES|QL: Fix errors in blockloaders when filtering nulls on histograms (#148983) (#149278)

Authored May 18, 2026

[9.3] Fix ArrayIndexOutOfBoundsException in centroid grouping evaluateFinal (#148815) (#149162)

Authored May 15, 2026

9.3 - ES|QL RerankIT cheaper parameters (#148637)

Authored May 19, 2026

Bump versions after 9.3.4 release

Authored April 30, 2026

Derive CAGRA nn-descent iterations from ef_construction (#147180) (#147301)

Authored April 23, 2026

[9.3] [TEST] Fix MLModelDeploymentFullClusterRestartIT UPGRADED failures (#147274) (#147275)

Authored April 23, 2026

Test bwc against 9.2.8 not against 9.2.9-snapshots (#148408)

Authored May 6, 2026

Fix CCR follow to handle indexing_complete race (#145304) (#148609)

Authored May 8, 2026

[9.3] Regenerate test certificates (#147819) (#147883)

Authored April 29, 2026

bump netty version (#148394) (#148423)

Authored May 6, 2026

[9.3] Normalize `_timeseries` to JSON for stored source (#148716) (#149295)

Authored May 18, 2026

[9.3] Fix xpack/usage/logging BWC issues (#149106) (#149137)

Authored May 15, 2026

[CI] Reduce size of overprovisioned BWC and packaging instances (#148435) (#148632)

Authored May 8, 2026

[9.3] Fix Reindexing Slicing Bug (#147257)

Authored April 24, 2026

[9.3] Temporary fix for CompletionStatsCacheTests testCompletionStatsCache (#147503) (#148466)

Authored May 7, 2026