IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Elasticsearch Guide [8.18] ›Release notes

Elasticsearch version 8.18.6

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A newer version is available. Check out the latest documentation.

Elasticsearch version 8.18.6

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Also see Breaking changes in 8.18.

The 8.18.6 release contains fixes for potential security vulnerabilities. Please see our security advisory for more details.

Bug fixes

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EQL
  • Better error message for sequences with only one clause plus UNTIL #132638
  • Fix sequences with conditions involving keys and non-keys #133134
Ingest Node
  • Change GeoIpCache and EnrichCache to LongAdder #132922
Machine Learning
  • Disable child span for streaming tasks #132945
  • Improve EIS auth call logs and fix revocation bug #132546
  • Preserve lost thread context in node inference action. A lost context causes a memory leak if APM tracing is enabled #132973
Search
  • Don’t fail search if bottom doc can’t be formatted #133188 (issue: #125321)

Enhancements

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Authorization
  • [ExtraHop & QualysGAV] Add manage, create_index, read, index, write, delete, permission for third party agent indices kibana_system #132387 (issue: #131825)
Infra/REST API
  • Limit the depth of a filter #133113

Upgrades

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Ingest Node
Packaging
  • Update bundled JDK to Java 24.0.2+12 #133119
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