Unity 5

[Feldruam]

Have guys thought about moving to unity5 at some point? What benefits are expected?

[Dan Dixon]

Yes. We've already moved over to Unity 5.

Although as a user, you won't see any direct improvements in the next Alpha (Alpha 15) because of this specifically.

It appears that a future build of Unity5 will include a new technology called "IL2CPP" which will help to improve the overall performance of the simulation.
http://blogs.unity3d.com/2014/05/20/the-future-of-scripting-in-unity/