The main innovation of Unity 4.2 is support for Windows Phone 8 and BlackBerry 10. The developers also announced the appearance of deferred shading in the mobile version of the engine.
New features are available for free. Moreover, the company’s management decided to transfer from the Pro version to the basic one, which is provided free of charge to teams with an income of less than $ 100 per year, such features as real-time lighting and a tool for working with NavMesh geometry.
The full list of innovations can be found at the link.
Source: blogs.unity3d.com