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Jul 21, 2025
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Add release notes for v8.18.4 release #131143

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532668f
Update docs for v8.18.4 release
Jul 14, 2025
456c2c4
Merge branch '8.18' into release-notes-8-18-4
charlotte-hoblik Jul 16, 2025
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2 changes: 2 additions & 0 deletions docs/reference/release-notes.asciidoc
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This section summarizes the changes in each release.

* <<release-notes-8.18.4>>
* <<release-notes-8.18.3>>
* <<release-notes-8.18.2>>
* <<release-notes-8.18.1>>
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--

include::release-notes/8.18.4.asciidoc[]
include::release-notes/8.18.3.asciidoc[]
include::release-notes/8.18.2.asciidoc[]
include::release-notes/8.18.1.asciidoc[]
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46 changes: 46 additions & 0 deletions docs/reference/release-notes/8.18.4.asciidoc
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[[release-notes-8.18.4]]
== {es} version 8.18.4

coming[8.18.4]

Also see <<breaking-changes-8.18,Breaking changes in 8.18>>.

[[bug-8.18.4]]
[float]
=== Bug fixes

Aggregations::
* Aggs: Add cancellation checks to `FilterByFilter` aggregator {es-pull}130452[#130452]

ES|QL::
* Avoid O(N^2) in VALUES with ordinals grouping {es-pull}130576[#130576]
* Avoid dropping aggregate groupings in local plans {es-pull}129370[#129370] (issues: {es-issue}129811[#129811], {es-issue}128054[#128054])
* ESQL: Avoid unintended attribute removal {es-pull}127563[#127563] (issue: {es-issue}127468[#127468])
* ESQL: Fix alias removal in regex extraction with JOIN {es-pull}127687[#127687] (issue: {es-issue}127467[#127467])
* ESQL: Keep `DROP` attributes when resolving field names {es-pull}127009[#127009] (issue: {es-issue}126418[#126418])
* Fix `BytesRef2BlockHash` {es-pull}130705[#130705]
* Fix wildcard drop after lookup join {es-pull}130448[#130448] (issue: {es-issue}129561[#129561])

Infra/Core::
* Reverse disordered-version warning message {es-pull}129904[#129904]

Machine Learning::
* Check for model deployment in inference endpoints before stopping {es-pull}129325[#129325] (issue: {es-issue}128549[#128549])
* Fix timeout bug in DBQ deletion of unused and orphan ML data {es-pull}130083[#130083]

Mapping::
* Make flattened synthetic source concatenate object keys on scalar/object mismatch {es-pull}129600[#129600] (issue: {es-issue}122936[#122936])

Relevance::
* Fix: `GET _synonyms` returns synonyms with empty rules {es-pull}131032[#131032]

Search::
* Check field data type before casting when applying geo distance sort {es-pull}130924[#130924] (issue: {es-issue}129500[#129500])
* Fix msearch request parsing when index expression is null {es-pull}130776[#130776] (issue: {es-issue}129631[#129631])
* Fix text similarity reranker does not propagate min score correctly {es-pull}129223[#129223]
* Trim to size lists created in source fetchers {es-pull}130521[#130521]

Vector Search::
* Fix knn search error when dimensions are not set {es-pull}131081[#131081] (issue: {es-issue}129550[#129550])