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Elasticsearch version 8.0.1

Also see Breaking changes in 8.0.

Known issues

Parsing a request when the last element in an array is filtered out (for instance using _source_includes) fails. This is due to a bug in Jackson parser. Fixed in Elasticsearch 8.6.1 (#91456)

Bug fixes

Aggregations

Fix backward compatibility with 7.17.0 #83715

Distributed

Correctly handle large zones with 500 or more instances #83785 (issue: #83783)

ILM+SLM

Do not allow negative age in explain lifecycle API response #84043

Infra/Core

Copy trace.id in threadcontext stash #83218
Preserve context in ResultDeduplicator #84038 (issue: #84036)
Update system index mappings if _meta is null #83896 (issue: #83890)

Ingest

Fix GeoIpDownloader startup during rolling upgrade #84000
Short circuit date patterns after first match #83764

Machine Learning

Retry anomaly detection job recovery during relocation #83456

Packaging

Add log4j-slf4j-impl to repository-azure #83661 (issue: #83652)

Recovery

Add missing indices.recovery.internal_action_retry_timeout to list of settings #83354

SQL

Fix txt format for empty result sets #83376

Search

Avoid eagerly loading StoredFieldsReader in fetch phase #83693 (issue: #82777)
Returns valid PIT when no index matched #83424

Security

Upgrade jANSI dependency to 2.4.0 #83566

Snapshot/Restore

Move get snapshots serialization to management pool #83215
Preserve context in snapshotDeletionListeners #84089 (issue: #84036)

Transform

Fix condition on which the transform stops processing buckets #82852

Watcher

Tolerate empty types array in Watch definitions #83524 (issue: #83235)

Enhancements

Infra/REST API

Update YAML REST tests to check for product header on all responses #83290

Recovery

Adjust indices.recovery.max_bytes_per_sec according to external settings #82819

Upgrades

Geo

Update vector tiles google protobuf to 3.16.1 #83402

Packaging

Bump bundled JDK to 17.0.2+8 #83243 (issue: #83242)

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https://www.elastic.co/guide/en/elasticsearch/reference/8.17/release-notes-8.0.1.html