It’s actually a test build, but it is certainly worth checking out and helping out the Blender team. So what can you expect in this test build ( and hopefully in the upcoming release )?
Bevel and inset are now mouse controllable ( woot! This one falls under the category of WHAT WERE THEY THINKING??? problems before ).
Tons of Cycles changes
Motion tracking now includes planar tracking
Snap to vertice/face/edge implemented in Pose mode for bones
Sculpt masking add to the Sculpt tool
And perhaps most important of all, especially for game developers… improved COLLADA support!
For the full details, check here or you can download here.