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@@ -0,0 +1,107 @@
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+[[release-notes-8.0.0-rc2]]
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+== {es} version 8.0.0-rc2
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+
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+Also see <<breaking-changes-8.0,Breaking changes in 8.0>>.
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+
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+[[known-issues-8.0.0-rc2]]
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+[float]
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+=== Known issues
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+
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+* **Do not upgrade production clusters to {es} 8.0.0-rc2.** {es} 8.0.0-rc2 is
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+a pre-release of {es} 8.0 and is intended for testing purposes only.
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++
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+Upgrades from pre-release builds are not supported and could result in errors or
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+data loss. If you upgrade from a released version, such as 7.16, to a
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+pre-release version for testing, discard the contents of the cluster when you are
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+done. Do not attempt to upgrade to the final 8.0 release.
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+
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+[[deprecation-8.0.0-rc2]]
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+[float]
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+=== Deprecations
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+
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+Engine::
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+* Deprecate setting `max_merge_at_once_explicit` {es-pull}80574[#80574]
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+
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+Search::
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+* Configure `IndexSearcher.maxClauseCount()` based on node characteristics {es-pull}81525[#81525] (issue: {es-issue}46433[#46433])
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+
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+
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+[[feature-8.0.0-rc2]]
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+[float]
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+=== New features
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+
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+Snapshot/Restore::
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+* Support IAM roles for Kubernetes service accounts {es-pull}81255[#81255] (issue: {es-issue}52625[#52625])
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+
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+Watcher::
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+* Use `startsWith` rather than exact matches for Watcher history template names {es-pull}82396[#82396]
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+
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+
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+[[enhancement-8.0.0-rc2]]
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+[float]
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+=== Enhancements
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+
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+Cluster Coordination::
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+* Make `TaskBatcher` less lock-heavy {es-pull}82227[#82227] (issue: {es-issue}77466[#77466])
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+
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+ILM+SLM::
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+* Avoid unnecessary `LifecycleExecutionState` recalculation {es-pull}81558[#81558] (issues: {es-issue}77466[#77466], {es-issue}79692[#79692])
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+* Make unchanged ILM policy updates into no-op {es-pull}82240[#82240] (issue: {es-issue}82065[#82065])
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+
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+Infra/Core::
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+* Prevent upgrades to 8.0 without first upgrading to the last 7.x release {es-pull}82321[#82321] (issue: {es-issue}81865[#81865])
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+
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+Machine Learning::
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+* Add `deployment_stats` to trained model stats {es-pull}80531[#80531]
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+* The setting `use_auto_machine_memory_percent` now defaults to `max_model_memory_limit` {es-pull}80532[#80532] (issue: {es-issue}80415[#80415])
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+
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+Network::
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+* Improve slow inbound handling to include response type {es-pull}80425[#80425]
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+
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+Search::
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+* Check nested fields earlier in kNN search {es-pull}80516[#80516] (issue: {es-issue}78473[#78473])
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+
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+
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+[[bug-8.0.0-rc2]]
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+[float]
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+=== Bug fixes
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+
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+Autoscaling::
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+* Use adjusted total memory instead of total memory {es-pull}80528[#80528] (issue: {es-issue}78750[#78750])
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+
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+Infra/Scripting::
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+* Fix duplicated allow lists upon script engine creation {es-pull}82820[#82820] (issue: {es-issue}82778[#82778])
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+
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+Ingest::
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+* Adjust default geoip logging to be less verbose {es-pull}81404[#81404] (issue: {es-issue}81356[#81356])
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+
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+Machine Learning::
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+* Check that `total_definition_length` is consistent before starting a deployment {es-pull}80553[#80553]
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+* Fail inference processor more consistently on certain error types {es-pull}81475[#81475]
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+* Optimize the job stats call to do fewer searches {es-pull}82362[#82362] (issue: {es-issue}82255[#82255])
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+
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+Recovery::
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+* Make shard started response handling only return after the cluster state update completes {es-pull}82790[#82790] (issue: {es-issue}81628[#81628])
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+
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+Search::
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+* Reject zero-length vectors when using cosine similarity {es-pull}82241[#82241] (issue: {es-issue}81167[#81167])
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+
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+Security::
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+* Auto-generated TLS files under fixed config path {es-pull}81547[#81547] (issue: {es-issue}81057[#81057])
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+* Bind to non-localhost for transport in some cases {es-pull}82973[#82973]
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+* Correct file ownership on node reconfiguration {es-pull}82789[#82789] (issue: {es-issue}80990[#80990])
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+* Display security auto-configuration with fancy unicode {es-pull}82740[#82740] (issue: {es-issue}82364[#82364])
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+
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+Snapshot/Restore::
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+* Remove custom metadata if there is nothing to restore {es-pull}81373[#81373] (issues: {es-issue}81247[#81247], {es-issue}82019[#82019])
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+
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+
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+[[upgrade-8.0.0-rc2]]
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+[float]
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+=== Upgrades
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+
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+Infra/Logging::
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+* Upgrade ECS logging layout to latest version {es-pull}80500[#80500]
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+
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+Search::
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+* Upgrade to released lucene 9.0.0 {es-pull}81426[#81426]
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Rory Hunter