I have upgraded from A7 Pro to A8 Pro.

My A7 project works in A8, the big difference is mainly the physics engine changed from ODE to PhysX

I haven't use any physics in my prototype so I cannot tell the difference but tried some physics demo and found the demos are really cool.

The WED/MED editor toolbar icons look better, GED version same as A7.

It is still a good engine for Windows, no royalty, no subscription, I wonder why it didn't keep developing, particular for mobile platform.