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Elasticsearch v9.1.0

Elasticsearch: v9.1.0 Release

Release date:
July 23, 2025
Previous version:
v9.0.8 (released October 2, 2025)
Magnitude:
9,933 Diff Delta
Contributors:
60 total committers
Data confidence:
Commits:
432 impacting commits

432 Commits in this Release

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

[DOCS][Backport]: Backport release note updates to 9.0.0 (#126613)
Authored April 10, 2025
[9.0] Initial support for unmapped fields (Plus a few others) (#119886, #121261, #122607) (#122805)
Authored February 18, 2025
[Backport][9.0][DOCS] Restructure user settings reference pages (#125194)
Authored March 19, 2025
[9.0] System data streams are not being upgraded in the feature migration API (#124884)
Authored March 14, 2025
[DOCS][Backport][9.0] Reference cleanup (#124720)
Authored March 13, 2025
[ML] Append all data to Chat Completion buffer (#127658) (#128134)
Authored May 19, 2025
[DOCS]: Rename serach connectors to content connectors (#130309) (#130433)
Authored July 2, 2025
[Transform] Check alias during update (#124773)
Authored March 13, 2025
Always log data node failures (#127420) (#127509)
Authored April 29, 2025
Refactor: ScopeResolver (#126921) (#127174)
Authored April 22, 2025
[9.0] [Inference API] Remove second calculator instance as component and update tests (#121284) (#121529)
Authored February 3, 2025
[ML] Add deprecation warning for flush API (#121667) (#125121)
Authored March 18, 2025
Refactor file path resolution for entitlements (#127040) (#127133)
Authored April 22, 2025
[9.0] Add lifecycle setting to destination index after adding to data stream (#123071) (#123151)
Authored March 6, 2025
Remove obsolete fields from PutStoredScriptRequest (#123860) (#125123)
Authored March 18, 2025
[DOCS] Opster Migration: Nested bool query addition (#124455) (#125177)
Authored March 19, 2025
[ES|QL] Make numberOfChannels consistent with layout map by removing duplicated ChannelSet (#125636) (#125720)
Authored March 26, 2025
Add read-block to source index during data stream reindex (#122887) (#123180)
Authored February 21, 2025
Remove `TransportDownsampleIndexerAction` (#122756) (#123007)
Authored February 20, 2025
Reinstate ByteSizeValue transport changes (#123060)
Authored February 21, 2025
[9.0] Remove duplicate paths (including exclusive) in FileAccessTree (#123776 and #124023) (#123924)
Authored March 7, 2025
Clean up PolicyManager and ScopeResolver tests (#127115) (#127239)
Authored April 23, 2025
Update test_reranking_service to try and parse provided inputs as scores (#122328) (#129730)
Authored June 19, 2025
[9.0] Add TEST MergeWithLowDiskSpaceIT testForceMergeIsBlockedThenUnblocked (#130189) (#130287)
Authored June 30, 2025
[Synonym] Return Empty RuleSet (#131032) (#131088)
Authored July 11, 2025
Backport: Add exclusive file entitlement for settings (#125272) (#126006)
Authored April 1, 2025
[9.0] Move system indices migration to migrate plugin (#124783)
Authored March 14, 2025
Fix tests involving getBestDowngradeVersion (#127646) (#130636)
Authored July 4, 2025
Disable queryable built-in roles feature for core and datastream YAML tests (#121541) (#121663)
Authored February 4, 2025
Fix async stop sometimes not properly collecting result (#121843) (#122114)
Authored February 8, 2025
Retry ILM async action after reindexing data stream (#124149) (#124280)
Authored March 6, 2025
[DOCS][Backport]: Moves ES connectors Known issues page in 9.0.0 (#126617)
Authored April 10, 2025
[9.0] Unmute docker tests, add more logging and increase startup timeout (#131203) (#131293)
Authored July 15, 2025
[9.0] Add PR upgrade tests from merge base to PR HEAD (#128823) (#129521)
Authored July 14, 2025
Remove test usages of `getDefaultBackingIndexName` in DS and LogsDB tests (#127384) (#127503)
Authored April 30, 2025
Bump versions after 8.18.0 release
Authored April 16, 2025
Prune changelogs after 9.0.0 release
Authored April 15, 2025
Re-remove min compatible version from SearchRequest (#123859) (#125093)
Authored March 18, 2025
Bump versions after 9.0.0 release
Authored April 15, 2025
Bump versions after 9.0.1 release
Authored May 6, 2025

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Top Contributors in v9.1.0

charlotte-hoblik
GalLalouche
elasticsearchmachine
mosche
prdoyle
prwhelan
alexey-ivanov-es
parkertimmins
jdconrad
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