Unity Technologies has officially launched the latest version of its multiplatform engine.
The main features of Unity 4.0 are DirectX 11 support, a built-in tool for creating realistic Mecanim animation, real-time shadow support for mobile devices, the ability to publish the game as a flash application and for Lunix, as well as an improved editor (including the project browser and the gameobjects window).
More information about the innovations can be found here.