As part of EZP-25088 FullText indexing is now also working when not using Solr. This will never be as advanced as with Solr, but it provides basic search without setting up Solr.
Preparations for Symfony 3 support
This release has received lots of fixes to remove deprecation warnings when running on Symfony 2.8 to the point where we now have automated testing using Symfony 3.x. These changes will simplify the move to Symfony 3.x later, also for your own custom code as you can now enable full error reporting.
Other notable improvements
EZP-25323: Display Content Type name and Field definition name in the best language according to editor's browser setting.
EZP-24853: REST output when failing to save/create a draft has been improved.
EZP-26110: Added priority support to OutputVisitor, so that custom ones can be given a higher priority.
EZP-26080: REST routes can be registered with a prefix other than "ezp".
EZP-25725: Upgraded AlloyEditor to v1.2.3 and CK Editor to v4.5.9