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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Elasticsearch version 8.17.5

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

Elasticsearch version 8.17.5

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Also see Breaking changes in 8.17.

Bug fixes

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Authentication

Fix NPE for missing Content Type header in OIDC Authenticator #126191

ES|QL

Fix ReplaceMissingFieldsWithNull #125764 (issues: #126036, #121754, #126030)
Fix usage of already released null block in ValueSourceReaderOperator #126411 (issue: #125850)

Machine Learning

Fixing bedrock event executor terminated cache issue #118177 (issue: #117916)

Search

Re-enable parallel collection for field sorted top hits #125916
Support indices created in ESv6 and updated in ESV7 using different LuceneCodecs as archive in current version. #125389

TLS

Set keyUsage for generated HTTP certificates and self-signed CA #126376 (issue: #117769)

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