Elasticsearch version 8.15.5

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Elasticsearch version 8.15.5

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Also see Breaking changes in 8.15.

Bug fixes

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Machine Learning
  • Fix bug in ML autoscaling when some node info is unavailable #116650
Mapping
  • Change synthetic source logic for constant_keyword #117182 (issue: #117083)
Relevance
  • Fix handling of bulk requests with semantic text fields and delete ops #116942
Vector Search
  • Update Semantic Query To Handle Zero Size Responses #116277 (issue: #116083)

Enhancements

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Data streams
  • Apm-data: disable date_detection for all apm data streams #116995