IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elasticsearch version 7.11.2

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Elasticsearch version 7.11.2

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Also see Breaking changes in 7.11.

Known issues

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  • Snapshot and restore: If an index is deleted while the cluster is concurrently taking more than one snapshot then there is a risk that one of the snapshots may never complete and also that some shard data may be lost from the repository, causing future restore operations to fail. To mitigate this problem, prevent concurrent snapshot operations by setting snapshot.max_concurrent_operations: 1.

    This issue is fixed in Elasticsearch versions 7.13.1 and later. For more details, see #73456.

Enhancements

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Authorization
  • Improve shard level request cache efficiency #69505

Bug fixes

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Aggregations
Features/Data streams
  • Don’t mark backing indices of overlapping data streams as conflicts #69625
Features/ILM+SLM
  • Fix bug in multiple repo SLM retention #70047 (issue: #70029)
Features/Indices APIs
  • Require master node for watcher template #69147 (issue: #66837)
Features/Ingest
  • Async processors and final pipelines are broken #69818 (issue: #52339)
  • Copy_from on set processor should deep copy non-primitive mutable types #69349 (issue: #69348)
Infra/Plugins
  • Allow file read permissions in plugins #69643 (issue: #69464)
Machine Learning
  • Avoid memory tracker race condition #69290 (issue: #69289)
  • Fix logic for moving .ml-state-write alias from legacy to new #69039 (issue: #68925)
Mapping
  • Collect multiple paths from XContentMapValues #68540 (issue: #68215)
SQL
  • Fix the inconsistent behaviour of ISO_WEEK_YEAR() #68758 (issue: #67872)
  • Make RestSqlQueryAction thread-safe #69895 (issue: #69866)
Snapshot/Restore
  • Fix Leaking Listener in BlobStoreRepository #69110
  • Remove blocking on generic thread pool in GET snapshots #69101 (issue: #69099)
  • URL repos and searchable snapshots don’t mix #69197 (issue: #68918)
Transform
  • Stop transform regardless of transform nodes #69419 (issue: #69260)
  • Prevent concurrent state persistence when indexer gets triggered during shutdown #69551 (issue: #67121)
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