WARNING: Version 2.2 of Elasticsearch has passed its EOL date.

This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.

Elastic Docs ›Elasticsearch Guide [2.2] ›Release Notes
« 2.0.2 Release Notes 2.0.0 Release Notes »

2.0.1 Release Notesedit

Also see Breaking changes in 2.0.

Bug fixesedit

Aggregations
  • Pass extended bounds into HistogramAggregator when creating an unmapped aggregator #14742 (issue: #14735)
Allocation
  • Fix calculation of next delay for delayed shard allocation #14765
  • Take ignored unallocated shards into account when making allocation decision #14678 (issue: #14670)
  • Only allow rebalance operations to run if all shard store data is available #14591 (issue: #14387)
  • Delayed allocation can miss a reroute #14494 (issues: #14010, #14011, #14445)
CAT API
  • Properly set indices and indicesOptions on subrequest made by /_cat/indices #14360
Cluster
  • Handle shards assigned to nodes that are not in the cluster state #14586 (issue: #14584)
Core
  • Fork Lucene PatternTokenizer to apply LUCENE-6814 (closes #13721) #14571 (issue: #13721)
Fielddata
  • Don’t cache top level field data for fields that don’t exist #14693
Index APIs
  • Field stats: Added format option for index constraints #14823 (issue: #14804)
Mapping
  • Mapping: Allows upgrade of indexes with only search_analyzer specified #14677 (issue: #14383)
Plugin Delete By Query
  • Fix Delete-by-Query with Shield #14658 (issue: #14527)
  • Delete by query to not wrap the inner query into an additional query element #14302 (issue: #13326)
Plugins
  • Use plugin name from plugin’s properties file rather than plugin’s class #14479 (issue: #14357)
  • Fix plugin list command error message #14288 (issue: #14287)
  • Fix HTML response during redirection #11374 (issue: #11370)
REST
  • XContentFactory.xContentType: allow for possible UTF-8 BOM for JSON XContentType #14611 (issue: #14442)
Scripting
  • Backport #8201 to 2.0 and disable by default #14283 (issue: #14273)
Stats
  • Omit current* stats for OldShardStats #13801 (issue: #13386)
Translog
  • Translog recovery can repeatedly fail if we run out of disk #14695

Regressionsedit

Internal
« 2.0.2 Release Notes 2.0.0 Release Notes »