The main new feature of this version is the support of custom actions (read the new Chapter 8 for more details) and the addition of tens of new unit tests.
Features
[8cca619] Added support for custom actions and full action customization
[286c0f4] Deprecated list_max_results and list_actions global options. They have been replaced by the same options under the global list option. Your backend should keep working as previously because the bundle updates these options automatically for you.
[8cca619] Added tens of unit tests for Dependency Injection extension
[11689c0][701ad06] Added Travis CI and SensioLabsInsight badges
Fixes
[ffe6d07] Fixed a typo by referring to CSS assets in layout.html.twig (bmanolov)
[75a1a91] Don't allow to sort columns of one-to-many, many-to-one and many-to-many associations
[5270932] Don't use getBoolean() because it was introduced in Symfony 2.6
[71c15c4] Fixed a bug when using boolean flip switches from list view (Pierstoval)
[51f5871] Don't use deprecated Yaml component features (xabbuh)
[bf0516e] Fixed the label issue for checkbox in edit and new pages (Damien DECONINCK)
[06950b2] Fixed the translation for virtual fields label (Damien DECONINCK)
Documentation
[8cca619] Added a new chapter about customizing the actions of all views and adding your own custom actions