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 6.3.1

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Elasticsearch version 6.3.1

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Also see 6.3.

Bug fixes

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Authentication

Security: fix joining cluster with production license #31341 (issue: #31332)
Security: fix token bwc with pre 6.0.0-beta2 #31254 (issues: #30743, #31195)
Compliant SAML Response destination check #31175

Ingest

Ingest Attachment: Upgrade Tika to 1.18 #31252

Java High Level REST Client

Change bulk’s retry condition to be based on RestStatus #29329 (issues: #28885, #29254)

Java Low Level REST Client

Avoid setting connection request timeout #30384 (issue: #24069)

Machine Learning

Fixes a bug introduced in 6.3.0 which may cause the a node to hang and drop out of the cluster if Machine Learning is enabled and has been actively used. The issue can be redressed in 6.3.0 by disabling Machine Learning on all nodes #31691 (issue: #31683)

Network

Ensure we don’t use a remote profile if cluster name matches #31331 (issue: #29321)

Packaging

Add package pre-install check for java binary #31343 (issue: #29665)

Recovery

Fix missing historyUUID in peer recovery when rolling upgrade 5.x to 6.3 #31506 (issue: #31482)

Rollup

[Rollup] Metric config parser must use builder so validation runs #31159

SQL

JDBC: Fix stackoverflow on getObject and timestamp conversion #31735 (issue: #31734)
SQL: Preserve scoring in bool queries #30730 (issue: #29685)

Scripting

Painless: Fix bug for static method calls on interfaces #31348

Search

Fix race in clear scroll #31259
Cross-cluster search: preserve remote status code #30976 (issue: #27461)

Security

Preserve thread context when connecting to remote cluster #31574 (issues: #31241, #31462)

Watcher

Watcher: Fix put watch action #31524

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