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Elasticsearch version 8.19.22

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IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.

Elasticsearch version 8.19.22

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Also see Breaking changes in 8.19.

The 8.19.22 release contains fixes for potential security vulnerabilities. Please see our security advisory for more details.

Bug fixes

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Analysis
  • Add option to limit the number of characters in analyze filters #158713
  • Bound min_hash filter parameters to prevent out-of-memory errors #154480
  • Cap min_hash filter parameters #158211
Authentication
  • Fix stack overflow when authorizing LDAP users with large group membership #158564
  • Scope role mapping metadata to gateway and API #158862
Authorization
  • Reject allow_restricted_indices=true consistently in roles granted by users with the manage_roles privilege #158831
ES|QL
  • Fix ST_DISTANCE with both arguments from doc values #157983 (issue: #149814)
  • Fix bulk inference requests being left waiting forever #158313 (issue: #156135)
  • Reject 2^63 in QL and ES|QL double-to-long conversion #157555 (issue: #157551)
  • When reversing strings, treat carriage return line feed (CRLF) as a single control character, in line with Unicode guidelines #158745
Highlighting
  • Allow max_analyzed_offset to be set to -1 to default to index.highlight.max_analyzed_offset #157381 (issue: #156122)
Machine Learning
  • Extend anomaly detection results template for reindexed indices and generalize healing beyond job_id mapping #153755 (issue: #147686)
  • Fix NPE when preview datafeed checks date_nanos for an unmapped time field #144909 (issue: #144888)
  • Fix model.failed_category_count in _cat/ml/anomaly_detectors reporting the dead category count #158186
  • Limit concurrent text structure analyses to the allocated processor count #158935 (issue: #158927)
  • Reject blank datafeed ID in stop datafeed request #157929
  • Reject blank job ID on close request #158020
  • Prevent STOPPING trained model routes with no local deployment process from blocking ML node shutdown during node drain #158820 (issue: #158818)
  • Treat ML node exhaustion as 4xx #155310
SQL
  • Fix result size limit check on INSERT #157752
Search
  • Keep a cancelled search from failing others through the request cache #157457 (issue: #157302)
  • Release fetch-source request breaker bytes #158734 (issue: #158634)
  • Prevent scripted fields from causing out-of-memory errors #152718 (issue: #120459)
Snapshot/Restore
  • Fix interrupt deadlock in CancellableRateLimitedFluxIterator #158936
Suggesters
  • Cap phrase suggester token_limit and bound candidate scoring work #158434

Enhancements

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Search
  • Bring _msearch/template to parity with _msearch: memory bounds, cancellation, and metrics #157642

Upgrades

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Infra/Core
Network
  • Upgrade Netty to 4.1.137.Final #157348
Security
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