Re: when do we remove backward compatibility definitions?

[Eli Zaretskii]

> From: Paul Eggert <address@hidden>
> Date: Tue, 21 Nov 2017 11:54:13 -0800
> 
> > R releases?
> > M major releases?
> > Y years?
> >
> > Where is it officially documented?
> 
> I don't think we have an official policy, so how about this as a first 
> cut: If the oldest GNU/Linux or other GNU distribution still in 
> reasonably widespread use has Emacs version N, then we don't need to 
> continue to support features that were marked obsolete in version N or 
> earlier.

No, I don't think we should look at GNU/Linux distributions to
determine such a policy.  Emacs is a separate project, and shouldn't
depend on any OS distributions.

And I'm not even sure we should have a policy.  For starters, who will
implement it?

Let's instead solve practical problems with such issues.  Are there
any practical problems here?  If so, what are they?

Thanks.