The biggest change is that the reverse animation direction was replaced with the forward one. Earlier when the last slide was to change to the first one (when the slideshow, slideshow with thumbnails and tabber layout effect was enabled) and opposite - when the first one was sliding to the last one the effect was displaying the opposite to normal flow direction. Now it's changed to the normal flow, so when you're at last slide the first one will show the same way as it was just next one.
The other changes are:
The complete changelog is available in our Changlogs section.