Just came to the site to see if there was an update and wasn't disappointed!
I'm going to be using TextureLab to demonstrate note-based dataflow and introduce texture mapping to my first year CS students in a couple of weeks' time, so the release timing couldn't be better.
Unfortunately there's a teeny-weeny little bug: the cube model in the preview window doesn't appear to have height maps applied.
Not a show-stopper for me, as I can have my students use the plane instead, but hopefully something that isn't too hard to fix.