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Elastic Docs ›Elasticsearch Guide [6.8] ›Release Notes
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Elasticsearch version 6.8.8edit

Known issuesedit

  • 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.

Also see Breaking changes in 6.8.

Bug fixesedit

Authorization
  • Explicitly require that delegate API keys have no privileges #53647
Distributed
  • Avoid loading retention leases while writing them #42620 (issue: #41430)
Infra/Core
  • Avoid self-suppression on grouped action listener #53262 (issue: #53174)
Network
  • Invoke response handler on failure to send #53631
SQL
Search
  • Fix concurrent requests race over scroll context limit #53449
  • Fix potential NPE in FuzzyTermsEnum #53231 (issue: #52894)

Upgradesedit

Features/Ingest
  • Ingest Attachment: Upgrade tika to v1.22 #53418
Infra/Core
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