Elasticsearch version 6.8.3edit
Also see Breaking changes in 6.8.
Enhancementsedit
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CCR
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Include leases in error message when operations no longer available #45681
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Infra/Core
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Add OCI annotations and adjust existing annotations #45167
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Infra/Settings
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Bug fixesedit
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Aggregations
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Fix early termination of aggregators that run with breadth-first mode #44963 (issue: #44909)
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Allocation
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Avoid overshooting watermarks during relocation #46079 (issue: #45177)
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CCR
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Clean up ShardFollowTasks for deleted indices #44702 (issue: #34404)
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CRUD
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Distributed
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Ensure AsyncTask#isScheduled remain false after close #45687 (issue: #45576)
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Engine
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Handle delete document level failures #46100
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Handle no-op document level failures #46083
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Features/Indices APIs
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Check shard limit after applying index templates #44619 (issue: #44567)
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Prevent NullPointerException in TransportRolloverAction #43353 (issue: #43296)
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Features/Java High Level REST Client
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Add rest_total_hits_as_int in HLRC’s search requests #46076 (issue: #43925)
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Infra/Core
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Infra/Plugins
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Do not checksum all bytes at once in plugin install #44649 (issue: #44545)
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SQL
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Fix URI path being lost in case of hosted ES scenario #44776 (issue: #44721)
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Interval arithmetics failure #42014 (issue: #41200)
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Search
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Prevent Leaking Search Tasks on Exceptions in FetchSearchPhase and DfsQueryPhase #45500
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Security
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Use system context for looking up connected nodes #43991 (issue: #43974)