[[release-notes-8.6.1]]
== {es} version 8.6.1

Also see <<breaking-changes-8.6,Breaking changes in 8.6>>.

[[known-issues-8.6.1]]
[float]
=== Known issues

include::8.6.0.asciidoc[tag=reconciliation-imbalance-known-issue]

include::8.4.0.asciidoc[tag=ingest-processor-log4j-cluster-instability-known-issue]

[[bug-8.6.1]]
[float]
=== Bug fixes

Data streams::
* Fix wildcard expansion for delete-by-query on data streams {es-pull}92891[#92891]
* Fix wildcard expansion for update-by-query on data streams {es-pull}92717[#92717] (issue: {es-issue}90272[#90272])
* Patch jackson-core with locally modified class #92984
This fixes an issue in jackson parsing (issue: {es-issue}92480[#92480])

Distributed::
* Fix `ByteArrayIndexInput` with nonzero offset {es-pull}93205[#93205]

ILM+SLM::
* Get repository metadata from the cluster state doesn't throw an exception if a repo is missing {es-pull}92914[#92914]

Infra/Core::
* Don't announce ready until file settings are applied {es-pull}92856[#92856] (issue: {es-issue}92812[#92812])

Machine Learning::
* Utilise parallel allocations where the inference request contains multiple documents {es-pull}92359[#92359]

Mapping::
* Fix `_bulk` api `dynamic_templates` and explicit `op_type` {es-pull}92687[#92687]

Search::
* Avoid doing I/O when fetching min and max for keyword fields {es-pull}92026[#92026]
* Reduce memory required for search responses when many shards are unavailable {es-pull}91365[#91365] (issue: {es-issue}90622[#90622])