Well actually it has been for a few days now already.
You should automatically get it when you start the game.

Here's a change list:

1.0.5 - rev. 3665
level was entered in passive mode, when playing in non competition mode after watching a ghost
mac controller support added
pause also for controller mappable
fixed bug when switching profile and displaying options afterwards
fixed double controller button mapping after edited in options
more visual variation for stones in level stoned
fixed cave drop crash on PPC macs
improved performance in level Stoned
general code optimizations
deleted non intended shortcuts in the levels Break Them All and Stoned
fixed easy killing stones in Spin Circle

If you want you can also read the full version history