Elasticsearch: v9.4.6 Release

71 Commits in this Release

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

Keep scroll contexts on transient search queue rejection (#155697) (#156522)

Authored August 12, 2026

Fix ML multi-cluster tests after rule migration (#157526) (#157584)

Authored August 25, 2026

[Gradle] Improve forbidden-apis task input determinism for better cacheability (#148668) (#157057)

Authored August 19, 2026

[9.4] Add a limit on aggregation nesting depth (#155743) (#156263)

Authored August 10, 2026

Remove redundant synchronized from ShardCoreKeyMap#getShardId (#156902) (#157724)

Authored August 26, 2026

[9.4] [ML] Fix ChangePointAggregator tests (#156684) (#156913)

Authored August 18, 2026

[9.4] Simplify field matching in exclude source vectors (#156466) (#156613)

Authored August 12, 2026

Unmute tests linked to closed issues (#156043)

Authored August 6, 2026

[Build tools] Disable TestKit cache cleanup in build-tools func tests (#156899) (#156986)

Authored August 18, 2026

ESQL: Fix override timestamp field in TS (#155623) (#156206)

Authored August 7, 2026

[9.4] Fix/indices query cache null shard stats (#157050) (#157221)

Authored August 21, 2026

Fix self-deadlock when saturating the SEARCH pool in SearchWithRejectionsIT (#157599) (#157682)

Authored August 26, 2026

Fix NullPointerException in LongComparator caused by null search_after values (#132434) (#156249)

Authored August 9, 2026

Ensure `Error` propagates out of `S3BlobContainer` (#156786)

Authored August 18, 2026

Migrate :modules:reindex to JUnit rule test clusters (#155637) (#156081)

Authored August 6, 2026

[9.4] Fix NPE in BulkByScrollResponseWireSerializingTests (#155498)

Authored August 11, 2026

Migrate searchable-snapshots qa:rest to JUnit rule (#157414) (#157580)

Authored August 25, 2026

Use constant for empty `ActionFilters` (#157023)

Authored August 18, 2026

Fix Google VertexAI chat completion tool call args for non-string values (#156665) (#156700)

Authored August 18, 2026

Speedup CsvIT (#154861) (#156146)

Authored August 7, 2026

[CI] Skip node setup on old glibc platforms (#155820) (#156058)

Authored August 6, 2026

Unmute SmokeTestMultiNodeClientYamlTestSuiteIT (#156494)

Authored August 11, 2026

[9.4] inject wait for LDAP server readiness to fix LDAP test flakiness (#156178) (#156280)

Authored August 10, 2026

Remove the assertion that values increase in rate calculation (149822) (#157059)

Authored August 19, 2026

Fix ensureExchangesAreReleased in CCS tests (#156093) (#156127)

Authored August 7, 2026

[9.4] CompletionSuggestSearchIT runs with a circuit breaker now (#152954) (#152966)

Authored August 6, 2026

Migrate license-enforcing qa to JUnit cluster rule (#157415) (#157485)

Authored August 24, 2026

Migrate ml-with-security to JUnit rule-based yaml rest test (#157080) (#157227)

Authored August 20, 2026

Migrate native-multi-node-tests to JUnit rule cluster (#157113) (#157130)

Authored August 20, 2026

Migrate shutdown multi-node QA to JUnit rule cluster (#157296) (#157390)

Authored August 21, 2026

Migrate text-structure-with-security to JUnit rule (#157356) (#157394)

Authored August 21, 2026

Migrate ml basic-multi-node to JUnit rule cluster (#157293) (#157372)

Authored August 21, 2026

Fix recurring cluster-formation timeout flakiness in InternalTestCluster (#152751) (#156139)

Authored August 7, 2026

Exclude non-metadata _type from default search hit fields (#155706) (#156252)

Authored August 9, 2026

Fail request instead of node on deep aggregations (#155745) (#156377)

Authored August 11, 2026

Fix histogram min/max not being fully respected in rank estimation (#156268) (#156278)

Authored August 10, 2026

Update wolfi (versioned) (#157081)

Authored August 18, 2026

Migrate mixed-tier-cluster to JUnit rule clusters (#156096) (#157043)

Authored August 18, 2026

remove @Order from RemoteClusterSecurityCcrMigrationIT and RemoteClusterSecurityTransformMigrationIT (#156671) (#156769)

Authored August 19, 2026

[9.4] Fix race in `DesiredBalanceShardsAllocatorTests` (#156947) (#157002)

Authored August 19, 2026