Elasticsearch version 8.1.2edit

Also see Breaking changes in 8.1.

Bug fixesedit

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