Elasticsearch version 8.1.2edit
Also see Breaking changes in 8.1.
Bug fixesedit
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Authorization
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Add delete privilege to
kibana_system for APM #85085
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Engine
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Increase store ref before snapshotting index commit #84776
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Infra/Core
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Return empty version instead of blowing up if we cannot find it #85244
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Validate index format agreement for system index descriptors #85173
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Wrap thread creation in
doPrivileged call #85180
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Machine Learning
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Do not fetch source when finding index of last state docs #85334
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Fixes for multi-line start patterns in text structure endpoint #85066
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Reallocate model deployments on node shutdown events #85310
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Mapping
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Do not fail on duplicated content field filters #85382
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Search
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Increase store ref before analyzing disk usage #84774
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Limit concurrent shard requests in disk usage API #84900 (issue: #84779)
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TransportBroadcastAction should always set response for each shard #84926
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Snapshot/Restore
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Fix leaking listeners bug on frozen tier #85239
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Watcher
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No longer require master node to install Watcher templates #85287 (issue: #85043)