I disagree that the first point is major. amd64 has been a thing for a long time. Compilers and kernel implementations have also changed, so x86 windows has bee

I disagree that the first point is major. amd64 has been a thing for a long time. Compilers and kernel implementations have also changed, so x86 windows has been a moving target as well. Will people need to test and possibly debug after their recompile? Sure. Will a lot of such code work fine on the first try? Also yes.