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Elastic Docs ›Elasticsearch Guide [6.8] ›Release Notes

Elasticsearch version 6.8.6

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IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.

Elasticsearch version 6.8.6

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Also see Breaking changes in 6.8.

Known issues

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  • Slow loggers can cause Log4j loggers to leak over time. When a new index is created, a new Log4j logger is associated with it. However, when an index is deleted, Log4j keeps an internal reference to its loggers that results in a memory leak #57228 (issue: #56171)

    This issue is fixed in Elasticsearch 6.8.10 and 7.7.1.

Enhancements

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Features/Watcher
  • Log attachment generation failures #50080
Infra/Packaging
  • Restrict support for CMS to pre-JDK 14 #49123 (issue: #46973)

Bug fixes

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Aggregations
  • Avoid precision loss in DocValueFormat.RAW#parseLong #49063 (issue: #38692)
Audit
Authentication
  • Fix iterate-from-1 bug in smart realm order #49473
CCR
  • CCR should auto-retry rejected execution exceptions #49213
Features/Java High Level REST Client
  • Support es7 node http publish_address format #49279 (issue: #48950)
Machine Learning
Recovery
  • Ignore Lucene index in peer recovery if translog corrupted #49114
Reindex
  • Fix delete- and update-by-query on indices without sequence numbers #50077
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