[[breaking-changes-7.10]]
== Breaking changes in 7.10
++++
<titleabbrev>7.10</titleabbrev>
++++

This section discusses the changes that you need to be aware of when migrating
your application to {es} 7.10.

See also <<release-highlights>> and <<es-release-notes>>.

// * <<breaking_710_blah_changes>>
// * <<breaking_710_blah_changes>>

//NOTE: The notable-breaking-changes tagged regions are re-used in the
//Installation and Upgrade Guide

//tag::notable-breaking-changes[]

[discrete]
[[breaking_710_search_changes]]
=== Search Changes

[discrete]
==== Missing checks for `index.max_docvalue_fields_search`
The setting `index.max_docvalue_fields_search` limits the number of fields that
can be retrieved through `docvalue_fields` in a search. Previously we only
checked this limit when `docvalue_fields` appeared in the top-level search
request body. Now we also enforce the limit when loading doc value fields in
an `inner_hits` section or in a `top_hits` aggregation.

[discrete]
[[breaking_710_networking_changes]]
=== Networking Changes

[discrete]
==== *.tcp.keep_idle and *.tcp.keep_interval now bounded
The settings `{network,transport,http}.tcp.keep_idle` and
`{network,transport,http}.tcp.keep_interval` are now limited to a maximum
value of 300, which amounts to 5 minutes. This helps ensure that, if
explicitly configured, only reasonable values are set.

//end::notable-breaking-changes[]

.Repository Stats API is deprecated
[%collapsible]
====
*Details* +
The Repository Stats API has been introduced in 7.8.0 as an experimental API
and was never released. This API is superseded by the <<repositories-metering-apis,Repositories Metering APIs>>
added in 7.10.0 which should be used instead. The Repository Stats API is
deprecated starting 7.10.0 and will be removed in 8.0.0.

*Impact* +
Use the <<repositories-metering-apis,Repositories Metering APIs>>.
====