Microsoft declared the era of XP finally over, amongst others by not providing fixes in Updates per May 13 (not a Friday, but close).
Markets (use base out there) declared Microsoft to be just one vendor among many, not to dictate anything but to deliver at want, at need. No more. They did so through continued use of XP in oh so many machines, of the general-purpose computer type, and in embedded systems et al. Microsoft weighs, the user base decides.
And, of course:
[A sunny pic of Ståckhølm]