The never-ending Blender upgrade continues as Beta 2.53 has been released.
http://www.blender.org/development/release-logs/blender-250/
Although this is still a beta, it is buggy and incomplete, it is important to try it because it's a major evolution for Blender and it is the future of Blender (and hopefully of PyPRP). There are not too many new features; but some important changes (in particular the whole interface) that we'll have to get used to.
The interface has evolved (and improved) in a really radical way since version 2.5 and those who haven't tried it yet will be a little lost at first. Personally I think it's a great improvement: it's much cleaner, much more coherent, and very easy to customize. Exactly what Blender needed all these years.
There is a decent guide here to get you started through some of the major interface changes.
Guild of Writers
