shortcut keys in save dialog no longer working
after update to 7.8.1, I can’t type “Y” or “N” to say yes or no to save dialog
Indeed. It was reported a month ago in issue #6223.
And, as @Alan-Kilborne said here,
There is a method to self-restore the keyboard accelerators. It takes a bit of manual work, but truthfully it isn’t too hard. See details in the comments of this issue.
Doing that manual fix should tide you over until the next version is released with that fixed.