Among a few small things the most important changes are:
– Bugfixes for the skeleton problems introduced in v0.40 and v0.41
– Ability to disable the PointCloud for users with slower machines
– Ability to turn the Wrist rotations OFF (which were causing problems in some cases)
As usual check the releaselog for the full list.
Oooh and I updated the FAQ with some new info as well.