Elasticsearch: v9.4.1 Release

32 Commits in this Release

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

Backport of: [ES|QL] query approximation: add min source row count (#147886) (#148391)

Authored May 6, 2026

[9.4][ML] Add external changelog source support for release notes (#145958) (#148363)

Authored May 6, 2026

[Inference API] Add inference id to the timeout string and use internal timeout exception (#146531) (#148142)

Authored May 1, 2026

Bugfix - Block Loader Pushdown + Union Types (#147940) (#148008)

Authored May 4, 2026

[Inference API] Fix inference initialization thread exhaustion (#147063) (#148151)

Authored May 4, 2026

Fix #147594 (#148166) (#148280)

Authored May 5, 2026

[9.4] ESQL: Fix golden test normalization (#148253) (#148397)

Authored May 6, 2026

Temporary fix for CompletionStatsCacheTests testCompletionStatsCache (#147503) (#148465)

Authored May 7, 2026

Implement RerankingInferenceService for Elastic service (#148365) (#148525)

Authored May 7, 2026

fix two verifier tests under release mode (#148135) (#148257)

Authored May 5, 2026

Mute org.elasticsearch.xpack.esql.qa.single_node.GenerativeIT test #148339

Authored May 7, 2026

Mute org.elasticsearch.xpack.esql.qa.mixed.EsqlClientYamlIT test {p0=esql/50_index_patterns/_index LIKE with overly complex pattern} #148134

Authored May 4, 2026

Mute org.elasticsearch.index.reindex.ReindexClientYamlTestSuiteIT test {yaml=reindex/10_basic/Response format for updated} #148055

Authored April 30, 2026

Fix race in TickerScheduleTriggerEngine by checking watcher to node allocation (#147678) (#148392)

Authored May 6, 2026

Switch MS Graph IT primary realm to JWT (#148241) (#148455)

Authored May 7, 2026

Update elastic-apm-agent-java8 to 1.55.6 (#148271) (#148458)

Authored May 7, 2026

bump netty version (#148394) (#148420)

Authored May 6, 2026

Key plugin entitlement policies by descriptor name (#148447) (#148535)

Authored May 7, 2026

[DiskBBQ] Check that precondition should not be overwritten on update (#148111) (#148144)

Authored May 1, 2026

Entitlement: log denial at DEBUG, not WARN (#148442) (#148531)

Authored May 7, 2026

Preload AllPermissionCollection to avoid JDK 21 circularity (#148051) (#148076)

Authored April 30, 2026

ESQL: Disallow empty lists in named params, only (#147748) (#148068)

Authored April 30, 2026

Disable GC overhead limit in test JVMs (#147922) (#148021)

Authored April 30, 2026

perf: lazy allocation of DocValuesForUtil scratch buffer (#147966) (#148011)

Authored April 30, 2026

Fix field name length limit tests (#148161) (#148164)

Authored May 2, 2026

Disable test HTML reports on CI (#146228) (#148210)

Authored May 4, 2026

Missing ensureGreen() call in TSDBSyntheticIdsIT#testSyntheticId (#148292) (#148307)

Authored May 5, 2026

Prevent race between watch firing and cleanup in test (#148361) (#148369)

Authored May 6, 2026

[Test unmute] ReindexClientYamlTestSuiteIT Response format for updated (#148284)

Authored May 6, 2026

[CI] Propagate vault read failures and timeouts in Buildkite hooks (#148305) (#148343)

Authored May 5, 2026

Update Gradle wrapper to 9.5.0 (#145345) (#148264)

Authored May 5, 2026

Update wolfi (versioned) (#148313)

Authored May 5, 2026