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Elasticsearch v9.1.0

Elasticsearch: v9.1.0 Release

Release date:
July 23, 2025
Previous version:
v9.0.4 (released July 16, 2025)
Magnitude:
343,003 Diff Delta
Contributors:
144 total committers
Data confidence:
Commits:
2,801 impacting commits

2801 Commits in this Release

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

Upgrade `repository-s3` to AWS SDK v2 (#126843)
Authored April 24, 2025
ES|QL: Disallow brackets in unquoted index patterns (#130427) (#130938)
Authored July 9, 2025
ES|QL: Make fork available in release builds (#129606)
Authored June 19, 2025
Move ES|QL sample command from snapshot to tech preview (#129540)
Authored June 18, 2025
[Failure store] Introduce dedicated failure store lifecycle configuration (#127314)
Authored April 30, 2025
ESQL: Remove AggregateMapper reflection, and delegate intermediate state to suppliers (#122023)
Authored February 10, 2025
[ES|QL] Take double parameter markers for identifiers out of snapshot (#125690)
Authored March 27, 2025
Vector test tools (#128934)
Authored June 6, 2025
[ES|QL] Prevent using unnamed fields in the RERANK command (#127416)
Authored April 30, 2025
[docs] Re-generate and fix 9.0.0 release notes in markdown (#126425)
Authored April 7, 2025
Refactor EmbeddingRequestChunker (#122818)
Authored February 21, 2025
Update metrics command (#125193)
Authored March 20, 2025
Failure Store Access Authorization (#123986)
Authored March 20, 2025
Prepare tsdb doc values format for merging optimizations. 0
Authored April 2, 2025
Add l2_norm normalization support to linear retriever (#128504)
Authored June 2, 2025
Refactor data stream lifecycle to use the template paradigm (#124593)
Authored March 18, 2025
[ES|QL] Take named parameters for identifier and pattern out of snapshot (#121850)
Authored February 6, 2025
ESQL: Aggressive release of shard contexts (#129454)
Authored June 25, 2025
ESQL: Skip unused STATS groups by adding a Top N BlockHash implementation (#127148)
Authored June 11, 2025
Replace auto-read with proper flow-control in HTTP pipeline (#127259)
Authored April 25, 2025
Support 7x segments as archive in 8x / 9x (#119503)
Authored March 21, 2025
Add GCS telemtry with ThreadLocal (#125452)
Authored April 4, 2025
Make ILM `ClusterStateWaitStep` project-aware (#129042)
Authored June 6, 2025
Additional support for docs for ES|QL operators and version-specific differentiation (#125251)
Authored March 24, 2025
Remove legacy block loader test infrastructure (#127273)
Authored April 25, 2025
Remove remoteAddress field from TransportResponse (#120016)
Authored March 16, 2025
FORK - allow EVAL/DISSECT/STATS in branches (#125937)
Authored April 10, 2025
Drafts REST API page in ES reference docs (#129722) (#131007)
Authored July 10, 2025
[DOCS]: Move `_reindex` API examples to ES reference documentation (#129341)
Authored June 17, 2025
Simple version of patterned_text with a single doc value for arguments (#129292)
Authored June 26, 2025
Allow project reserved state handlers to update any cluster state (#128636)
Authored June 3, 2025
Make data stream lifecycle project-aware (#125476)
Authored March 31, 2025
Rename METRICS command to TS (#126064)
Authored April 2, 2025
Add Query API key information examples (#129719)
Authored June 24, 2025
ESQL: Extend `RENAME` syntax to allow a `new = old` syntax (#129212)
Authored June 11, 2025
Add max.chunks to EmbeddingRequestChunker to prevent OOM (#123150)
Authored March 13, 2025
Remove optional seed from ES|QL SAMPLE (#128887)
Authored June 10, 2025
Make enrich project-aware (#124099)
Authored March 6, 2025
Remove trappy timeouts from `IndicesAliasesRequest` (#123987)
Authored March 4, 2025
Make ILM `ClusterStateActionStep` project-aware (#128880)
Authored June 5, 2025

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Top Contributors in v9.1.0

nielsbauman
dnhatn
DaveCTurner
original-brownbear
gmarouli
jan-elastic
luigidellaquila
ioanatia
benwtrent
idegtiarenko

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