W7/Vista Client - Fact or Myth?

Unlike ours, their website says "or later".

It is very general, but.. yeah. It shows that they should've implemented some kind of compatibility.

Though, I for myself will say that I'm still experiencing issues when standing in crowded maps (flashing textures or screen going black, client completely stopping to work and eventually crashing). So I'm not sure if that compatibility is.. partial or total. Probably partial, unless the issues I'm getting on both GMS and KMS are my fault, but since other people are experiencing them, too, I doubt they are.