IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Elasticsearch version 8.5.0
editElasticsearch version 8.5.0
editAlso see Breaking changes in 8.5.
Known issues
edit- It is possible to inadvertently create an alias with the same name as an index in version 8.5.0. This action leaves the cluster in an invalid state in which several features will not work correctly, and it may not even be possible to restart nodes while in this state. Upgrade to 8.5.1 as soon as possible to avoid the risk of this occurring (#91456). If your cluster is affected by this issue, upgrade to 8.5.3 to repair it (#91887).
-
Machine learning datafeeds cannot be listed if any are not modified since version 6.x
If you have a datafeed that was created in version 5.x or 6.x and has not been updated since 7.0, it is not possible to list datafeeds in 8.4 and 8.5. This means that anomaly detection jobs cannot be managed using Kibana. This issue is fixed in 8.6.0.
If you upgrade to 8.4 or 8.5 with such a datafeed, you need to work around the problem by updating each datafeed’s authorization information using these steps.
-
Orchestrators which use a
settings.json
file to configure Elasticsearch may encounter deadlocks during master elections (issue: #92812)To resolve the deadlock, remove the
settings.json
file and restart the affected node. -
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)
Breaking changes
edit- CRUD
-
- Reject unknown bulk actions #89450
Bug fixes
edit- Aggregations
-
-
Fix
auto_date_histogram
>ip_range
#90317 (issue: #90121) -
Fail when rebuilding scorer in
breadth_first
mode and query context has changed #89993 (issue: #37650) - Fix merging with empty results #86939 (issue: #84622)
-
Fix partial reduce bug in
ip_prefix
#89734 (issue: #89686) - Remove unexpected meta parameter in aggregation response #89467 (issue: #89455)
-
Consistently allow sorting
top_metrics
aggregations whose size is greater than 1 #89974 (issue: #86663) - Check parent circuit breaker when allocating an empty bucket #89568 (issue: #80789)
-
Fix
- Authorization
-
-
Remove magic string for the
"__empty"
role #89766
-
Remove magic string for the
- CCR
- Cluster Coordination
- Distributed
-
-
Fork
TransportClusterStateAction
toMANAGEMENT
thread pool #90996
-
Fork
- Engine
- Geo
- Graph
- Health
-
- Modify disk indicator details to provide an overview of the disk space health #90189
- Fix disk indicator impacts and diagnosis #90262
- Fix the details calculation of the disk indicator #90869
- Report impact and diagnosis data nodes without disk space and no blocked indices #90772 (issue: #90442)
- Update minimum version for health node reporting to 8.5 #90365 (issue: #90359)
- Indices APIs
- Infra/Core
-
-
Fix
allow_no_indices
request option in special cases #89622 - Fix repeated error save loops in File Settings Service #90271 (issue: #90222)
- Fix date rounding for date math parsing #90458 (issue: #90187)
-
Fix disabling APM tracing for
CancellableTask
inTrainedModelAssignmentNodeService
#90972 (issue: #89850) - Support camel case dates on 7.x indices #88914 (issue: #84199)
-
Fix
- Infra/Scripting
-
-
Fix true/false accumulation bug in boolean
source
fallback #90895
-
Fix true/false accumulation bug in boolean
- Ingest Node
-
- Set the enrich maintenance cluster lifecycle listener only once #90486
- Machine Learning
- Mapping
- Monitoring
-
- Add fields to fix Logstash cgroup graphs #90493
- Network
-
-
Fix
RecyclerBytesStreamOutput
allocating unlimited heap for some capacities #90632
-
Fix
- Recovery
- Search
-
- Add support for predefined char class regexp on wildcard fields #90064
- Deduplicate fetching doc-values fields #89094
- Don’t shortcut the total hit count for text fields #90341 (issue: #89760)
-
Safeguard
RegExp
use againstStackOverflowError
#84624 (issue: #82923) - Use MB rather than GB to calculate max boolean clauses #90309 (issue: #86136)
- Snapshot/Restore
-
- Fix incorrect failed shards count in APIs for current snapshots #89534
- Fix over-allocation of mounted indices on a cold/frozen node #86331
-
Fix quadratic complexity in
SnapshotStatus
serialization #90795 - Fork building snapshot status response off of transport thread #90651
- Make sure listener is resolved when file queue is cleared #89929
- Re-register a corrupt repository to unblock it #89719 (issue: #89130)
- Reject unknown request body fields in mount API #88987 (issue: #75982)
- TSDS
- Transform
-
- Don’t fail a transform on a ClusterBlockException, this may be due to ILM closing an index #90396 (issue: #89802)
- Fix NPE in transform scheduling #90347 (issues: #90356, #88203, #90301, #90255)
- Improve error handling in state persistence #88910 (issue: #88905)
-
Return
408
instead of500
when the start API times out #89774
- Vector Search
-
-
Fix bug for
kNN
with filtered aliases #89621
-
Fix bug for
- Watcher
Deprecations
edit- Infra/Plugins
Enhancements
edit- Authentication
-
- Add more accurate error message for LDAP user modes #89492
- Authorization
- Autoscaling
-
- Centralize the concept of processors configuration #89662
- Cluster Coordination
- Distributed
- Health
-
- Add IDs to health API diagnoses and impacts #90072
- Add a check to the master stability health API when there is no master and the current node is not master eligible #89219
-
Add logic to
master_is_stable
indicator to check for discovery problems #88020 - Poll for cluster diagnostics information #89014
- Update SLM health diagnosis message to include unhealthy policy details #89138
- Highlighting
- ILM+SLM
- Infra/Core
-
-
Add reserved
/_snapshot/repo
file based settings #89601 -
Add
upgrade_status
attributes to Fleet Agents #89845 -
Add support for
/_autoscaling/policy
for file based settings #89708 -
Add support for
/_security/role_mapping
for file based settings #89667 -
Add support for support for
/_slm/policy
in file based settings #89567 - Retry file watch registration #90537 (issue: #89500)
-
Add reserved
- Infra/Node Lifecycle
- Infra/Plugins
- Infra/Scripting
-
- Initial code to support binary expression scripts #89895
-
Protect
_source
inside update scripts #88733 -
Reindex and
UpdateByQuery
metadata #88665 -
Add write Field API
NestedDocument
support #90021 - Add write Field API path manipulation #89889
- Add write Field API with basic path resolution #89738
- Add write Fields API for reindex, update, and update by query #90145
- Infra/Settings
- License
-
- License check for user profile collaboration feature #89990
- Machine Learning
-
- Add measure of non-cache hit inference count #90464
-
Add new
text_similarity
nlp task #88439 - Add new trained model deployment cache clear API #89074
- Add processor autoscaling decider #89645
- Distribute trained model allocations across availability zones #89822
- Use a bitset for deduplication of frequent items #88943
- Optimize frequent items transaction lookup #89062
- Release native inference functionality as beta #90418
-
Return
408
when the start deployment API times out #89612 - Skip renormalization after calling the node shutdown API #89347
- Compute outlier feature influence via the Gateaux derivative to improve attribution for high dimension vectors #2256
- Improve classification and regression model train runtimes for data sets with many numeric features #2380, #2388, #2390, #2401
-
Increase the limit on the maximum number of classes to
100
for training classification models #2395 (issue: #2246)
- Mapping
-
-
Add
synthetic_source
support toaggregate_metric_double
fields #88909 -
Add
source
fallback for keyword fields using operation #88735 -
Add
source
fallback support formatch_only_text
mapped type #89473 -
Add
source
fallback support for date anddate_nanos
mapped types #89440 -
Add
source
fallback support for unsigned long mapped type #89349 -
Add support for
source
fallback with scaled float field type #89053 -
Add support for
source
fallback with the boolean field type #89052 - Add text field support in the Painless scripting fields API #89396
- Clarify that fielddata is not supported for text fields error message #89770 (issue: #89485)
-
Add new mappings for Fleet Agent
last_checkin_message
and components fields #89599 -
Support
source
fallback forbyte
,short
, andlong
fields #88954 -
Support
source
fallback fordouble
,float
, andhalf_float
field types #89010
-
Add
- Network
-
- Use chunked REST serialization for large REST responses #88311
- Recovery
-
- Disable recovering from snapshots in searchable snapshots #86388
- SQL
- Search
- Security
-
- Add usage stats report for user profiles #90123
- Implement grace period for user profile activation #89566
- Return limited-by role descriptors in Get/QueryApiKey response #89273
-
Add option to return profile uid in
GetUser
response #89570 -
Return
400
error forGetUserPrivileges
call with API keys #89333 - Show assigned role descriptors in Get/QueryApiKey response #89166
-
Add detailed errors in
hasPrivileges
response #89224 -
Add support for multiple UIDs to the
GetProfile
API #89023
- Snapshot/Restore
- Stats
-
- Introduce node mappings stats #89807
- TSDS
- Transform
-
- Add an unattended mode setting to transform #89212
New features
editRegressions
edit- Infra/Scripting
-
- Fix fields API caching regression #90017