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Elasticsearch version 8.11.0

Also see Breaking changes in 8.11.

Breaking changes

Infra/Core

Remove transport_versions from cluster state API #99223

Known issues

High Memory Pressure due to a GC change in JDK 21

This version of Elasticsearch is bundled with JDK 21. In JDK 21 Preventive GC has been removed. This may lead to increased memory pressure and an increased number of CircuitBreakerExceptions when retrieving large documents under some particular load. (issue: #99592)

If you needed to explicitly enable Preventive GC for your workload in a previous Elasticsearch version, we recommend you avoid to upgrade to this version, as the settings to enable Preventive GC have been removed from JDK 21.

Bug fixes

Aggregations

Adjust DateHistogram's bucket accounting to be iteratively #101012
Allow parsing on non-string routing fields #97729
Support runtime fields in synthetic source #99796 (issue: #98287)

Allocation

Consider node shutdown in DataTierAllocationDecider #98824 (issue: #97207)

Application

Align look-back with client-side cache #101264
Increase K/V look-back time interval #101205
Provide stable resampling #101255
[Profiling] Tighten resource creation check #99873

Authorization

Allow enrich_user to read/view enrich indices #100707
Grant editor and viewer access to profiling #100594

CCR

CCR: Use local cluster state request #100323

CRUD

Change GetFromTranslog to indices action #99300
Wait for cluster to recover before resolving index template #99797

Cluster Coordination

Reset GatewayService flags before reroute #98653 (issue: #98606)

Data streams

DSL waits for the tsdb time boundaries to lapse #100470 (issue: #99696)
Propagate cancellation in DataTiersUsageTransportAction #100253
[DSL] skip deleting indices that have in-progress downsampling operations #101495

Downsampling

Make downsample target index replicas configurable #99712

ES|QL

"params" correctly parses the values including an optional "type" #99310 (issue: #99294)
Account for an exception being thrown when building a BytesRefArrayBlock #99726 (issue: #99472)
Add arithmetic operators #98628
Add identity check in Block equality #100377 (issue: #100374)
Adds Enrich implicit match_fields to field_caps call #101456 (issue: #101328)
Better management of not stored TEXT fiels with synthetic source #99695
Continue resolving attributes for Eval #99601 (issue: #99576)
Create a Vector when needed for IN #99382 (issue: #99347)
ESQL: Fix unreleased block in topn #101648 (issue: #101588)
ESQL: check type before casting #101492 (issue: #101489)
Fix NPE when aggregating literals #99827
Fix escaping of backslash in LIKE operator #101120 (issue: #101106)
Fix eval of functions on foldable literals #101438 (issue: #101425)
Fix non-null value being returned for unsupported data types in ValueSources #100656 (issue: #100048)
Graceful handling of non-bool condition in the filter #100645 (issues: #100049, #100409)
Handle queries with non-existing enrich policies and no field #100647 (issue: #100593)
Implement serialization of InvalidMappedField #98972 (issue: #98851)
Improve verifier error for incorrect agg declaration #100650 (issue: #100641)
Limit how many bytes concat() can process #100360
Make DISSECT parameter append_separator case insensitive #101358 (issue: #101138)
Page shouldn’t close a block twice #100370 (issues: #100356, #100365)
Preserve intermediate aggregation output in local relation #100866 (issue: #100807)
Properly handle multi-values in fold() and date math #100766 (issue: #100497)
Remove aliasing inside Eval #100238 (issue: #100174)
Resilience to non-indexed fields #99588 (issue: #99506)
Skip synthetic attributes when planning the physical fragment #99188 (issue: #99170)
Support date and time intervals as input params #101001 (issue: #99570)
Support queries that don’t return underlying fields #98759 (issue: #98404)
Use exact attributes for data source extraction #99874 (issue: #99183)
mv_expand pushes down limit and project and keep the limit after it untouched #100782 (issues: #99971, #100774)
support metric tsdb fields while querying index patterns #100351 (issue: #100144)

Geo

Use NamedWritable to enable GeoBoundingBox serialisation #99163 (issue: #99089)

Health

Fix NPE in StableMasterHealthIndicatorService #98635
Health report infrastructure doesn’t trip the circuit breakers #101629
Propagate cancellation in GetHealthAction #100273

Highlighting

Correctly handle ScriptScoreQuery in plain highlighter #99804 (issue: #99700)
Disable weight_matches when kNN query is present #101713

ILM+SLM

Compute SLM retention from RepositoryData #100092 (issue: #99953)
WaitForSnapshotStep verifies if the index belongs to the latest snapshot of that SLM policy #100911

Infra/Core

Add java.net.NetPermission to APM module’s permissions #99474
Don’t update system index mappings in mixed clusters #101778 (issues: #101331, #99778)
Revert "Kibana system index does not allow user templates to affect it" #98888
Specify correct current IndexVersion after 8.10 release #98574 (issue: #98555)
Tracing: Use doPriv when working with spans, use SpanId #100232

Infra/Scripting

Improve painless error wrapping #100872

Ingest Node

Improving tika handling #101486
Update enrich execution to only set index false on fields that support it #98038 (issue: #98019)

Machine Learning

Avoid risk of OOM in datafeeds when memory is constrained #98915 (issue: #89769)
Fix for inference requests being sent to every node with a model allocation. If there are more nodes than items in the original request then empty requests were sent. #100388 (issue: #100180)
Preserve order of inference results when calling the _infer API with multiple inputs on a model deployment with more than one allocation the output results order was not guaranteed to match the input order. The fix ensures the output order matches the input order. #100143
Remove noisy Could not find trained model message #100760
Safely drain deployment request queues before allowing node to shutdown #98406
Use the correct writable name for model assignment metadata in mixed version clusters. Prevents a node failure due to IllegalArgumentException Unknown NamedWriteable [trained_model_assignment] #100886
Wait to gracefully stop deployments until alternative allocation exists #99107

Mapping

Automatically disable ignore_malformed on datastream @timestamp fields #99346
Correct behaviour of ContentPath::remove() #98332 (issue: #98327)
Fix merges of mappings with subobjects: false for composable index templates #97317 (issue: #96768)
Percolator to support parsing script score query with params #101051 (issue: #97377)

Network

Do not report failure after connections are made #99117

Percolator

Fix percolator query for stored queries that expand on wildcard field names #98878

Query Languages

Preserve subfields for unsupported types #100875 (issue: #100869)

Recovery

Fix interruption of markAllocationIdAsInSync #100610 (issues: #96578, #100589)

Search

Consistent scores for multi-term SourceConfirmedTestQuery #100846 (issue: #98712)
Fix UnsignedLong field range query gt "0" can get the result equal to 0 #98843
Fix advanceExact for doc values from sources #99685
Fork response-sending in OpenPointInTimeAction #99222
[CI] SearchResponseTests#testSerialization failing resolved #100020 (issue: #100005)
fix fuzzy query rewrite parameter not work #97642

Security

Fix NullPointerException in RotableSecret #100779 (issue: #99759)

Snapshot/Restore

Fix race condition in SnapshotsService #101652
Fix snapshot double finalization #101497
Fix thread context in getRepositoryData #99627
Frozen index input clone copy cache file #98930
Make S3 anti-contention delay configurable #101245
More robust timeout for repo analysis #101184 (issue: #101182)
Register repository_s3 settings #101344
Reinstate RepositoryData BwC #100447

TSDB

Don’t ignore empty index template that have no template definition #98840 (issue: #98834)
Fix painless execute api and tsdb issue #101212 (issue: #101072)
Make tsdb settings public in Serverless #99567 (issue: #99563)

Transform

Fix possible NPE when getting transform stats for failed transforms #98061 (issue: #98052)
Ignore IndexNotFound error when refreshing destination index #101627
Make Transform Feature Reset really wait for all the tasks #100624
Make tasks that calculate checkpoints cancellable #100808

Watcher

Treating watcher webhook response header names as case-insensitive #99717

Deprecations

Rollup

Rollup functionality is now deprecated #101265

Enhancements

Aggregations

Disable FilterByFilterAggregator through ClusterSettings #99417 (issue: #99335)
Represent histogram value count as long #99912 (issue: #99820)
Skip DisiPriorityQueue on single filter agg #99215 (issue: #99202)
Use a competitive iterator in FiltersAggregator #98360 (issue: #97544)

Allocation

Report a node’s "roles" setting in the /_cluster/allocation/explain response #98550 (issue: #97859)

Application

Add flamegraph API #99091
[Profiling] Allow to customize the ILM policy #99909
[Profiling] Allow to wait until resources created #99655

Audit

Reduce verbosity of the bulk indexing audit log #98470

Authentication

Allow native users/roles to be disabled via setting #98654

CAT APIs

Add dataset size to cat indices and cat shards #98622 (issue: #95092)

Data streams

Allow explain data stream lifecycle to accept a data stream #98811

ES|QL

Add CEIL function #98847
Add ability to perform date math #98870 (issue: #98402)
Add support for TEXT fields in comparison operators and SORT #98528 (issue: #98642)
Compact topn #99316
Date math for negatives #99711
Enable arithmetics for durations and periods #99432 (issue: #99293)
Enhance SHOW FUNCTIONS command #99736 (issue: #99507)
Improve log messages #99470
Log execution time consistently #99286
Log query and execution time #99058
Log start and end of queries #99746
Lower the implicit limit, if none is user-provided #99816 (issue: #99458)
Make settings dynamic #101516
Mark counter fields as unsupported #99054
Remove the swapped-args check for date_xxx() #101362 (issue: #99562)
Serialize the source in expressions #99956
Simple check if all blocks get released #100199
Support unsigned long in sqrt and log10 #98711
Use DEBUG log level to report execution steps #99303

Engine

Use IndexWriter.flushNextBuffer() to reclaim memory from indexing buffers #94607

Health

Avoiding the use of nodes that are no longer in the cluster when computing master stability #98809 (issue: #98636)
When a primary is inactive but this is considered expected, the same applies for the replica of this shard. #99995 (issue: #99951)

Infra/Core

APM Metering API #99832
Update the elastic-apm-agent version #100064
Use mappings version to retrieve system index mappings at creation time #99555

Infra/Node Lifecycle

Add links to docs from failing bootstrap checks #99644 (issue: #99614)
Chunk SingleNodeShutdownStatus and ShutdownShardMigrationStatus (and related action) response #99798 (issue: #99678)

Infra/REST API

Add IndexVersion to node info #99515
Add component info versions to node info in a pluggable way #99631
Return a 410 (Gone) status code for unavailable API endpoints #97397

Machine Learning

Add new _inference API #99224
Adding an option for trained models to be platform specific #99584
Log warnings for jobs unassigned for a long time #100154
Simplify the Inference Ingest Processor configuration #100205

Mapping

Automatically flatten objects when subobjects:false #97972 (issue: #88934)
Explicit parsing object capabilities of FieldMappers #98684 (issue: #98537)
Reintroduce sparse_vector mapping #98996

Network

Chunk the cluster allocation explain response #99641 (issue: #97803)

Recovery

Wait for cluster state in recovery #99193

Search

Add additional counters to _clusters response for all Cluster search states #99566 (issue: #98927)
Adding support for exist queries to sparse_vector fields #99775 (issue: #99319)
Make _index optional for pinned query docs #97450
Reduce copying when creating scroll/PIT ids #99219
Refactor SearchResponseClusters to use CHM #100129 (issue: #99101)
Support cluster/details for CCS minimize_roundtrips=false #98457

Security

Support rotatating the JWT shared secret #99278

Snapshot/Restore

Remove shard data files when they fail to write for snapshot #99694

Stats

Prune unnecessary information from TransportNodesInfoAction.NodeInfoRequest #99938 (issue: #99744)

TSDB

Add index.look_back_time setting for tsdb data streams #98518 (issue: #98463)
Improve time-series error and documentation #100018
Trim stored fields for _id field in tsdb #97409

Transform

Add accessors required to recreate TransformStats object from the fields #98844

Vector Search

Add new max_inner_product vector similarity function #99527
Adds nested support for indexed dense_vector fields #99763
Dense vector field types are indexed by default #98268
Increase the max vector dims to 4096 #99682

New features

Analysis

Add support for Persian language stemmer #99106 (issue: #98911)

Application

Automatically map float arrays of lengths 128 - 2048 as dense_vector #98512 (issue: #97532)

Data streams

GA the data stream lifecycle #100187
GET _data_stream displays both ILM and DSL information #99947

ES|QL

Integrate Elasticsearch Query Language, ES|QL #98309
LEAST and GREATEST functions #98630
LEFT function #98942
LTRIM, RTRIM and fix unicode whitespace #98590
RIGHT function #98974
TopN sorting with min and max for multi-value fields #98337

Upgrades

Packaging

Update bundled JDK to 21.0.1 #101133

Search

Upgrade main to Lucene 9.8.0 #100138

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https://www.elastic.co/guide/en/elasticsearch/reference/8.17/release-notes-8.11.0.html