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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Elastic Docs ›Elasticsearch Guide [7.16] ›Release notes

Elasticsearch version 7.0.0-rc1

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Elasticsearch version 7.0.0-rc1

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Also see Breaking changes in 7.0.0-rc1.

Breaking changes

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Distributed
Features/Features
  • Remove Migration Upgrade and Assistance APIs #40075 (issue: #40014)

Deprecations

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Cluster Coordination
  • Deprecate size in cluster state response #39951 (issue: #39806)
Infra/Packaging
  • Deprecate fallback to java on PATH #37990

New features

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Allocation
Security
  • Switch internal security index to ".security-7" #39337 (issue: #39284)

Enhancements

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CCR
  • Reduce retention lease sync intervals #40302
  • Renew retention leases while following #39335 (issues: #37165, #38718)
  • Reduce refresh when lookup term in FollowingEngine #39184
  • Integrate retention leases to recovery from remote #38829 (issue: #37165)
  • Enable removal of retention leases #38751 (issue: #37165)
Client
  • Fixed required fields and paths list #39358
Discovery-Plugins
  • Adds connect and read timeouts to discovery-gce #28193 (issue: #24313)
Distributed
  • Introduce retention lease actions #38756 (issue: #37165)
  • Add dedicated retention lease exceptions #38754 (issue: #37165)
  • Copy retention leases when trim unsafe commits #37995 (issue: #37165)
Docs Infrastructure
  • Align generated release notes with doc standards #39234 (issue: #39155)
Engine
  • Explicitly advance max_seq_no before indexing #39473 (issue: #38879)
Infra/Core
  • Add details about what acquired the shard lock last #38807 (issue: #30290)
Infra/Packaging
  • Use bundled JDK in Docker images #40238
  • Upgrade bundled JDK and Docker images to JDK 12 #40229
  • Bundle java in distributions #38013 (issue: #31845)
Infra/Settings
  • Provide a clearer error message on keystore add #39327 (issue: #39324)
Percolator
  • Make the type parameter optional when percolating existing documents. #39987 (issue: #39963)
  • Add support for selecting percolator query candidate matches containing geo_point based queries #26040
SQL
  • Enhance checks for inexact fields #39427 (issue: #38501)
  • Change the default precision for CURRENT_TIMESTAMP function #39391 (issue: #39288)

Bug fixes

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Aggregations
  • Skip sibling pipeline aggregators reduction during non-final reduce #40101 (issue: #40059)
  • Extend nextDoc to delegate to the wrapped doc-value iterator for date_nanos #39176 (issue: #39107)
  • Only create MatrixStatsResults on final reduction #38130 (issue: #37587)
Authentication
  • Allow non super users to create API keys #40028 (issue: #40029)
  • Use consistent view of realms for authentication #38815 (issue: #30301)
CCR
  • Safe publication of AutoFollowCoordinator #40153 (issue: #38560)
  • Enable reading auto-follow patterns from x-content #40130 (issue: #40128)
  • Stop auto-followers on shutdown #40124
  • Protect against the leader index being removed #39351 (issue: #39308)
  • Handle the fact that ShardStats instance may have no commit or seqno stats #38782 (issue: #38779)
  • Fix LocalIndexFollowingIT#testRemoveRemoteConnection() test #38709 (issue: #38695)
CRUD
  • Cascading primary failure lead to MSU too low #40249
Cluster Coordination
  • Fix node tool cleanup #39389
  • Avoid serialising state if it was already serialised #39179
Distributed
  • Ignore waitForActiveShards when syncing leases #39224 (issue: #39089)
  • Fix synchronization in LocalCheckpointTracker#contains #38755 (issues: #33871, #38633)
Engine
  • Bubble up exception when processing NoOp #39338 (issue: #38898)
  • ReadOnlyEngine should update translog recovery state information #39238
Features/Features
  • Only count some fields types for deprecation check #40166
Features/ILM
  • Handle failure to release retention leases in ILM #39281 (issue: #39181)
Features/Watcher
  • Use non-ILM template setting up watch history template & ILM disabled #39325 (issue: #38805)
  • Only flush Watcher’s bulk processor if Watcher is enabled #38803 (issue: #38798)
Infra/Core
  • Correct name of basic_date_time_no_millis #39367
Infra/Packaging
  • Some elasticsearch-cli tools could not be run not from ES_HOME #39937
  • Obsolete pre 7.0 noarch package in rpm #39472 (issue: #39414)
  • Suppress error message when /proc/sys/vm/max_map_count is not exists. #35933
Infra/REST API
  • Fix #38623 remove xpack namespace REST API #38625
  • Remove the "xpack" namespace from the REST API #38623
Recovery
  • Create retention leases file during recovery #39359 (issue: #37165)
SQL
  • Add missing handling of IP field in JDBC #40384 (issue: #40358)
  • Fix metric aggs on date/time to not return double #40377 (issues: #39492, #40376)
  • CAST supports both SQL and ES types #40365 (issue: #40282)
  • Fix RLIKE bug and improve testing for RLIKE statement #40354 (issues: #34609, #39931)
  • Unwrap the first value in an array in case of array leniency #40318 (issue: #40296)
  • Preserve original source for cast/convert function #40271 (issue: #40239)
  • Fix LIKE function equality by considering its pattern as well #40260 (issue: #39931)
  • Fix issue with optimization on queries with ORDER BY/LIMIT #40256 (issue: #40211)
  • Rewrite ROUND and TRUNCATE functions with a different optional parameter handling method #40242 (issue: #40001)
  • Fix issue with getting DATE type in JDBC #40207
  • Fix issue with date columns returned always in UTC #40163 (issue: #40152)
  • Add multi_value_field_leniency inside FieldHitExtractor #40113 (issue: #39700)
  • Fix incorrect ordering of groupings (GROUP BY) based on orderings (ORDER BY) #40087 (issue: #39956)
  • Fix bug with JDBC timezone setting and DATE type #39978 (issue: #39915)
  • Use underlying exact field for LIKE/RLIKE #39443 (issue: #39442)
Search
  • Serialize top-level pipeline aggs as part of InternalAggregations #40177 (issues: #40059, #40101)
  • CCS: Skip empty search hits when minimizing round-trips #40098 (issues: #32125, #40067)
  • CCS: Disable minimizing round-trips when dfs is requested #40044 (issue: #32125)

Upgrades

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Discovery-Plugins
  • Bump jackson-databind version for AWS SDK #39183
Engine
  • Upgrade to Lucene 8.0.0-snapshot-ff9509a8df #39350
  • Upgrade to Lucene 8.0.0 #39992 (issue: #39640)
Features/Ingest
  • Bump jackson-databind version for ingest-geoip #39182
Security
  • Upgrade the bouncycastle dependency to 1.61 #40017 (issue: #40011)
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