Looking at it, the UI was changed the same as how it was supposed to look like based on the promo videos and demo units from before. Sadly, there is no manual shutter speed yet as far as I can see, manual focus, and still cannot change ISO when shooting at 20MP/23MP mode.
We all know thought that Sony tends to have 'hidden' changes to their algorithm whenever they have these kinds of updates as evidenced from updates before. I'm still waiting for the complete changelog from XperiaBlog but so haven't time yet to do any extensive testing.
Did you notice any significant changes in yours apart from the UI changes?