RE: [External] : Re: Undo mode

[Drew Adams]

> > I'm not saying anything about this feature or any
> > ship on which someone thinks something has already
> > sailed.
> >
> > But if something isn't in an Emacs release (the
> > latest is 27.2) then I'd say it hasn't sailed.
> 
> What if someone tracking master (and there are enough of them to make a
> difference, I think) has customized `undelete-frame-mode' to t?
> 
> That's the specific case I was thinking of.

Bleeding edge.  Not a sailing ship.

(And again, I'm not saying anything
about this feature.)