Gamestudio/A8 is compatible to Gamestudio/A7 and A6, except for projects using the physics engine. For ordering the upgrade to A8, you need the same A7 edition. A8 has the following improvements over A7:
All A8 editions: nVidia PhysX support for vehicle and rigid body physics, improved editors, faster 3D renderer, accelerated dynamic shadows, improved publish process, overlay windows, trigger regions, 2D particle layers, new sprite types.
Pro Edition: accelerated bones rendering, bones weights, new network library, extended network functions with multiserver/zone support, shader-based bitmap processing, portal renderer, particle and sprite instancing.
Windows ME, Windows 2000, Windows XP x32, Windows Server 2008, Windows 7 x32, Windows 7 x64, Windows 7, Windows Vista x64, Windows Vista x32, Windows XP x64