Elasticsearch 7.6.2 release, distributed search and data analysis engine

Elasticsearch 7.6.2 released, Elasticsearch RESTful style is a distributed search and data analysis engine. 

Update more content, the removal of the following:

Bug fixes

Authentication

• Repair concurrent refresh token support a potential bug   # 53668

Engine

• Repair ReadOnlyEngine of doc_stats and segment_stats (AND DELINQUENCY:  # 51 303 ,  # 51331 )

Features/ILM+SLM

• Repair SnapshotLifecyclePolicy.toRequest in the empty configuration   # 53328  (AND DELINQUENCY:  # 44465 ,  # 53171 )
• When unconfirmed, ILM freezing step retry   # 53287

Features/Java High Level REST Client

• We will not support parameters added to the search request HLRC  # 53745
• Rest repair AbstractBulkByScrollRequest slices through parameter   # 53 068  (Issue:  # 53044 )

Features/Watcher

• Storage optimization disable the watchdog script script   # 53497  (Issue:  # 40212 )

Search

• Repair Term vector  # 53504  (Issue:  # 53494 )
• Repair concurrent request limit competition scrolling context   # 53449
• Repair can_match stage of pre-sorted fragments   # 53397
• Repair FuzzyTermsEnum potential NPE   # 53231  (Issue:  # 52894 )

For more details, see Update: 

https://www.elastic.co/guide/en/elasticsearch/reference/7.6/release-notes-7.6.2.html#bug-7.6.2