[galago]

Well put. Its just like iOS--developers are happier if most people are running the latest version. Less version-fragmentation. The "less adopted" variants of Windows are a problem for development and testing. It might make sense to only support/test XP, 7, and 10--but what a mess that is.

[TazeTSchnitzel]

Yeah. You need only look at Android to see the hell that version fragmentation can be for developers.

[yuhong]

Just last month, there was an win32k update for which the Win8.0 version failed to install on machines that was in-place upgraded. Only the Win8.0 (aka NT 6.2) version had the problem.