Re: A new user perspective about "Changes for emacs 28"

[Jack Kamm]

> Could someone point me at some explanation of what they're
> referring to when they say redo-only?  

The command undo-redo (not undo-redo-only, my mistake) has been added to
simple.el for emacs 28. You'll have to build emacs from master to usue
it. It's basically the inverse of undo-only, it skips undo'ing anything
that isn't an undo.