[[release-notes-8.15.1]]
== {es} version 8.15.1

coming[8.15.1]

Also see <<breaking-changes-8.15,Breaking changes in 8.15>>.

[[bug-8.15.1]]
[float]
=== Bug fixes

Aggregations::
* Revert "Avoid bucket copies in Aggs" {es-pull}111758[#111758] (issue: {es-issue}111679[#111679])

Authorization::
* Fix DLS over Runtime Fields {es-pull}112260[#112260] (issue: {es-issue}111637[#111637])

ES|QL::
* Avoid losing error message in failure collector {es-pull}111983[#111983] (issue: {es-issue}111894[#111894])
* Avoid wrapping rejection exception in exchange {es-pull}112178[#112178] (issue: {es-issue}112106[#112106])
* ESQL: Fix for overzealous validation in case of invalid mapped fields {es-pull}111475[#111475] (issue: {es-issue}111452[#111452])

Geo::
* Add maximum nested depth check to WKT parser {es-pull}111843[#111843]
* Always check `crsType` when folding spatial functions {es-pull}112090[#112090] (issue: {es-issue}112089[#112089])
* Fix NPE when executing doc value queries over shape geometries with empty segments {es-pull}112139[#112139]

Indices APIs::
* Fix template alias parsing livelock {es-pull}112217[#112217]

Infra/Core::
* Fix windows memory locking {es-pull}111866[#111866] (issue: {es-issue}111847[#111847])

Ingest Node::
* Fixing incorrect bulk request took time {es-pull}111863[#111863] (issue: {es-issue}111854[#111854])
* Improve performance of grok pattern cycle detection {es-pull}111947[#111947]

Logs::
* Merge multiple ignored source entires for the same field {es-pull}111994[#111994] (issue: {es-issue}111694[#111694])

Machine Learning::
* [Inference API] Move Delete inference checks to threadpool worker {es-pull}111646[#111646]

Mapping::
* Check for valid `parentDoc` before retrieving its previous {es-pull}112005[#112005] (issue: {es-issue}111990[#111990])
* Fix calculation of parent offset for ignored source in some cases {es-pull}112046[#112046]
* Fix synthetic source for empty nested objects {es-pull}111943[#111943] (issue: {es-issue}111811[#111811])
* No error when `store_array_source` is used without synthetic source {es-pull}111966[#111966]
* Prevent synthetic field loaders accessing stored fields from using stale data {es-pull}112173[#112173] (issue: {es-issue}112156[#112156])

Ranking::
* Properly handle filters on `TextSimilarityRank` retriever {es-pull}111673[#111673]

Relevance::
* Semantic reranking should fail whenever inference ID does not exist {es-pull}112038[#112038] (issue: {es-issue}111934[#111934])
* [Bugfix] Add `accessDeclaredMembers` permission to allow search application templates to parse floats {es-pull}111285[#111285]

Search::
* Explain Function Score Query {es-pull}111807[#111807]

Security::
* Fix "unexpected field [remote_cluster]" for CCS (RCS 1.0) when using API key that references `remote_cluster` {es-pull}112226[#112226]
* Fix connection timeout for `OpenIdConnectAuthenticator` get Userinfo {es-pull}112230[#112230]

Vector Search::
* Fix `NullPointerException` when doing knn search on empty index without dims {es-pull}111756[#111756] (issue: {es-issue}111733[#111733])
* Speed up dense/sparse vector stats {es-pull}111729[#111729] (issue: {es-issue}111715[#111715])


