Re: Preview: portable dumper

[Eli Zaretskii]

> Date: Fri, 2 Dec 2016 16:07:24 -0800 (PST)
> From: Drew Adams <address@hidden>
> Cc: address@hidden, address@hidden
> 
> > Only rarely have we made changes that would prevent this.
> 
> That used to be the case.  Now, nearly every major release is
> incompatible, AFAICT.  As far as I can see, long gone are the
> days when you could byte-compile in an older version and use
> the byte-compiled code in a newer version.

I'm not aware of such problems.  AFAIK, we only made an incompatible
change once, in Emacs 23.  The byte-compiled files compiled by later
versions should all be compatible.  If you see a problem with that,
please report it as a bug.