Sheesh. Really? A 'version number' represents progress in the program. In the case of GameStudio, it normally means new features, big improvements, etc. Compare A3 to A4, A4 to A5 and on up the line. A3 was like Doom, a raycasting engine. The fact that they are not even thinking about A9 seems to indicate that GameStudio is at a dead end as far as the developers are concerned.

Oh ... and a 'version number' also means upgrade sales and possible new sales. This is how the software is funded. So the big deal is that without an upgrade path or an updated, more advanced program to attract new buyers, GameStudio is dead.