[meta] 7.1 release

[codebrain]

7.1

Docs

• Update serialisation docs for 7.x https://www.elastic.co/guide/en/elasticsearch/client/net-api/current/custom-serialization.html#custom-serialization - JsonSerializerSettings not honored for Field Expressions #3926 - 1ad6768

Snapshot/Restore

• Include size of snapshot in snapshot metadata Include size of snapshot in snapshot metadata  elasticsearch#30890 (issue: Include size of snapshot in snapshot metadata elasticsearch#18543) - Include size of snapshot in snapshot metadata #3911

Authentication

• Add support for API keys to access Elasticsearch Add support for API keys to access Elasticsearch elasticsearch#38291 (issue: Long lived api keys/tokens elasticsearch#34383) - Implement Api Key authorisation on requests #3912

- [ ] OpenID Connect Realm base functionality elastic/elasticsearch#37009 (issue: elastic/elasticsearch#35339) - https://www.elastic.co/guide/en/elastic-stack-overview/master/_openid_connect_without_kibana.html - bumping to 7.2.0

CCR

• Add ccr follow info api #37408 (issue: #37127) - Add CCR Follow Info API #3927

Geo

• geotile_grid implementation #37842 (issue: #30240) - Implement GeoTileGrid aggregation #3932

Machine Learning
- [ ] Adds set_upgrade_mode API endpoint #37837 - check production ready bump to 7.2.0
- [ ] Add upgrade mode docs, hlrc, and fix bug #37942 bump to 7.2.0

Mapping

• Expose Lucene’s FeatureField. #30618
• Add nanosecond field mapper #37755 (issues: #27330, #32601) - Date Nanos implementation #3933

Ranking

• Add ranking evaluation API #27478 (issue: #19195) - still marked as experimental

Search

• Add a maximum search request size. #26423 - cluster setting, not on request objects

Analysis

• Allow word_delimiter_graph_filter to not adjust internal offsets #36699 (issues: #33710, #34741) - Implement adjust_offsets on word delimiter graph token filter #3934

Authentication

• Enhance Invalidate Token API #35388 (issues: #34556, #35115) - Additions to Invalidate Token API #3937

CCR

• Introduce forget follower API #39718 (issue: #37165) - Implement Forget Follower API #3939

Engine

• Add a _freeze / _unfreeze API #35592 (issue: #34352) - Implement Freeze and Unfreeze API #3940

Features/CAT APIs
- [ ] Expose search.throttled on _cat/indices#37073 (issue: #34352) does not require client changes

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Also, check the following:

Aggregations

• Added keyed response to pipeline percentile aggregations 22302 #36392 (issue: #22302)

- [ ] Added parent validation for auto date histogram #35670 server-side validation, no client changes needed

- [ ] Allow nested fields in the composite aggregation #37178 (issue: #28611) - no client changes needed, no restrictions in the client

Features/ILM

• Add set_priority action to ILM #37397 (issue: #36905) - already implemented in client
• Add Freeze Action #36910 (issue: #34630) - already implemented in client

Features/Indices APIs

• Add rollover-creation-date setting to rolled over index #31144 (issue: #30887) - no client changes needed

[russcam]

Closing this as NEST 7.1.0 has shipped