Immediate observed differences are: change to leading edge at wing tip corners - now rounded, different graphics, bridles could be slightly longer in some sections, better inflation valve, better bag - that's it so far.
In the air still a nice responsive kite with maybe even a lighter feel and possibly a little more bottom end. Improved launching possibly due to rounded corners.
So far only Kited it in 15 kn max NE so need more time on water for further comment.