[[es-release-notes]]
= {es} Release Notes

[partintro]
--
// Use these for links to issue and pulls. Note issues and pulls redirect one to
// each other on Github, so don't worry too much on using the right prefix.
:issue: https://github.com/elastic/elasticsearch/issues/
:pull: https://github.com/elastic/elasticsearch/pull/

This section summarizes the changes in each release.

* <<release-notes-7.0.0>>
* <<release-notes-6.4.0>>


--

[[release-notes-7.0.0]]
== {es} 7.0.0

[float]
[[breaking-7.0.0]]
=== Breaking Changes

<<write-thread-pool-fallback, Removed `thread_pool.bulk.*` settings and
`es.thread_pool.write.use_bulk_as_display_name` system property>> ({pull}29609[#29609])

<<systemd-service-file-config, Systemd service file is no longer marked as configuration>> ({pull}29004[#29004])
<<remove-suggest-metric, Removed `suggest` metric on stats APIs>> ({pull}29635[#29635])

<<remove-field-caps-body, In field capabilities APIs, removed support for providing fields in the request body>> ({pull}30185[#30185])

Machine Learning::
* The `max_running_jobs` node property is removed in this release. Use the
`xpack.ml.max_open_jobs` setting instead. For more information, see <<ml-settings>>.

* <<remove-http-enabled, Removed `http.enabled` setting>> ({pull}29601[#29601])

=== Deprecations
Monitoring::
* The `xpack.monitoring.collection.interval` setting can no longer be set to `-1`
to disable monitoring data collection. Use `xpack.monitoring.collection.enabled`
and set it to `false` (its default), which was added in 6.3.0.

Security::
* The fields returned as part of the mappings section by get index, get
mappings, get field mappings, and field capabilities API are now only the
ones that the user is authorized to access in case field level security is enabled.

//[float]
//=== Breaking Java Changes

//[float]
//=== Deprecations

//[float]
//=== New Features

//[float]
//=== Enhancements

[float]
=== Bug Fixes

Fixed prerelease version of elasticsearch in the `deb` package to sort before GA versions
({pull}29000[#29000])

=== Regressions
Fail snapshot operations early when creating or deleting a snapshot on a repository that has been
written to by an older Elasticsearch after writing to it with a newer Elasticsearch version. ({pull}30140[#30140])

Fix NPE when CumulativeSum agg encounters null value/empty bucket ({pull}29641[#29641])

//[float]
//=== Regressions

//[float]
//=== Known Issues

[[release-notes-6.4.0]]
== {es} 6.4.0

[float]
=== New Features

The new <<mapping-ignored-field,`_ignored`>> field allows to know which fields
got ignored at index time because of the <<ignore-malformed,`ignore_malformed`>>
option. ({pull}30140[#29658])

[float]
=== Enhancements

{ref-64}/breaking_64_api_changes.html#copy-source-settings-on-resize[Allow copying source settings on index resize operations] ({pull}30255[#30255])

Added new "Request" object flavored request methods. Prefer these instead of the
multi-argument versions. ({pull}29623[#29623])


[float]
=== Bug Fixes

Do not ignore request analysis/similarity settings on index resize operations when the source index already contains such settings ({pull}30216[#30216])

Fix NPE when CumulativeSum agg encounters null value/empty bucket ({pull}29641[#29641])

//[float]
//=== Regressions

//[float]
//=== Known Issues