WARNING: Version 2.3 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
There are no changes in Elasticsearch 2.3.5 except for the version bump. This is a compatibility release for bug fixes in Marvel, Watcher, and Shield.
Also see Breaking changes in 2.3.