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 7.7.1

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Elasticsearch version 7.7.1

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Also see Breaking changes in 7.7.

Known issues

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SQL: If a WHERE clause contains at least two relational operators joined by AND, of which one is a comparison (<=, <, >=, >) and another one is an inequality (!=, <>), both against literals or foldable expressions, the inequality will be ignored. The workaround is to substitute the inequality with a NOT IN operator.

We have fixed this issue in Elasticsearch 7.10.1 and later versions. For more details, see #65488.

Enhancements

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Authorization

Remove synthetic role names of API keys as they confuse users #56005

Features/ILM+SLM

ILM: Add cluster update timeout on step retry #54878

SQL

Change error message for comparison against fields in filtering #57126 (issue: #57005)

Bug fixes

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Authentication

Expose idp.metadata.http.refresh for SAML realm #56354
Fix concurrent refresh of tokens #55114 (issue: #54289)

CCR

Retry follow task when remote connection queue full #55314

Cluster Coordination

Fix the problem of recovering twice when perform a full cluster restart(#55564) #55780 (issue: #55564)

Discovery-Plugins

Hide c.a.a.p.i.BasicProfileConfigFileLoader noise #56346 (issues: #20313, #56333)

Engine

Ensure no circular reference in translog tragic exception #55959 (issue: #55893)
Update translog policy before the next safe commit #54839 (issue: #52223)

Features/CAT APIs

Handle exceptions when building _cat/indices response #56993 (issue: #56816)

Features/Features

7.x only REST specification fixes #56736 (issue: #55984)

Features/ILM+SLM

Fix Missing IgnoredUnavailable Flag in 7.x SLM Retention Task #56616

Features/Indices APIs

Allow removing replicas setting on closed indices #56680 (issues: #56656, #56675)
Allow removing index.number_of_replicas setting #56656 (issue: #56501)

Features/Ingest

Fix enrich coordinator to reject documents instead of deadlocking #56247 (issue: #55634)
EnrichProcessorFactory should not throw NPE if missing metadata #55977
Prevent stack overflow for numerous grok patterns. #55899
Fix empty_value handling in CsvProcessor #55649 (issue: #55643)

Features/Java High Level REST Client

Honor IndicesOptions in HLRC putMapping request #57118 (issue: #57045)

Features/Monitoring

Fix incorrect log warning when exporting monitoring via HTTP without authentication #56958 (issue: #56810)
Ensure that the monitoring export exceptions are logged. #56237

Features/Watcher

Ensure that .watcher-history-11* template is in installed prior to use #56734 (issue: #56732)
Fix smtp.ssl.trust setting for watcher email #56090 (issues: #45272, #52153)

Infra/Core

Prevent unexpected native controller output hanging the process #56491 (issue: #56366)
Add method to check if object is generically writeable in stream #54936 (issue: #54708)

Infra/Logging

SlowLoggers using single logger #56708 (issue: #56171)

Machine Learning

Fix background persistence of categorizer state. #1137 (issue: #1136)
Fix classification job failures when number of classes in configuration differs from the number of classes present in the training data. #1144
Fix underlying cause for "Failed to calculate splitting significance" log errors. #1157
Fix possible root cause for "Bad variance scale nan" log errors. #1225
Change data frame analytics instrumentation timestamp resolution to milliseconds. #1237
Fix "autodetect process stopped unexpectedly: Fatal error: terminate called after throwing an instance of 'std::bad_function_call". #1246 (issue: #1245)
Fix monitoring if orphaned anomaly detector persistent tasks exist #57235 (issue: #51888)
Fix delete_expired_data/nightly maintenance when many model snapshots need deleting #57041 (issue: #47103)
Ensure class is represented when its cardinality is low #56783
Use non-zero timeout when force stopping DF analytics #56423
Reduce InferenceProcessor.Factory log spam by not parsing pipelines #56020 (issue: #55985)
Audit when unassigned datafeeds are stopped #55656 (issue: #55521)

Network

Fix use of password protected PKCS#8 keys for SSL #55457 (issue: #8)
Add support for more named curves #55179 (issue: #55031)

Recovery

Fix trimUnsafeCommits for indices created before 6.2 #57187 (issue: #57091)

SQL

Fix unecessary evaluation for CASE/IIF #57159 (issue: #49672)
JDBC: fix access to the Manifest for non-entry JAR URLs #56797 (issue: #56759)
Fix JDBC url pattern in docs and error message #56612 (issue: #56476)
Fix serialization of JDBC prep statement date/time params #56492 (issue: #56084)
Fix issue with date range queries and timezone #56115 (issue: #56049)
SubSelect unresolved bugfix #55956

Search

Don’t run sort optimization on size=0 #57044 (issue: #56923)
Fix bool query behaviour on null value #56817 (issue: #56812)
Fix validate query listener invocation bug #56157
Async Search: correct shards counting #55758
For constant_keyword, make sure exists query handles missing values. #55757 (issue: #53545)
Fix (de)serialization of async search failures #55688
Fix expiration time in async search response #55435
Return true for can_match on idle search shards #55428 (issues: #27500, #50043)

Snapshot/Restore

Fix NPE in Partial Snapshot Without Global State #55776 (issue: #50234)
Fix Path Style Access Setting Priority #55439 (issue: #55407)

Upgrades

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Infra/Core

Upgrade to Jackson 2.10.4 #56188 (issue: #56071)

Infra/Packaging

Upgrade bundled jdk to 14.0.1 #57233

SQL

Update the JLine dependency to 3.14.1 #57111 (issue: #57076)

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