New this build: bug fixes and changes including another update to the node-webkit version, and due to strong demand the return of the address bar hiding on iPhone iOS 6 only.
There's also a new tweak to the collision cells engine to reduce the overhead of managing collision cells. Objects which don't have collisions tested against them no longer keep updating their collision cell. This should help reduce the 'Moved cell' and 'Cell count' measurements in the debugger, improving performance in projects with lots of moving objects that don't need collision checks. It also removes the overhead of managing collision cells for large objects like backgrounds which never have collisions tested, but would otherwise have added themselves to a wide range of collision cells. As ever optimisations can occasionally break things, so please watch out for anything different in this build!
Also note: if you're still on Windows XP we recommend updating - Microsoft are ending support soon.