Yes have that as update Windows regularly and is listed as an update.
Others may not be so up to date so is that a potential/actual problem??
There is still a major downgrade in performance if I go with 526.
512 gives instant program start up compared with very slow, paused 526 at this end
so not sure how others are getting the reverse effect if they in fact do.
Also requires multiple 'double clicks' to get program to start up and only noticed it with 526.