Re: Supported Emacs version

[Timothy]

Hi  Bastien,

>> I’m tempted to make some patches to remove all the Emacs < 26
>> compatibility code if we no longer need it. What do you think?
>
> We should NOT remove this code: many people probably use/need it.
>
> Anything that helps keeping Org compatible with Emacs < 26 is
> still useful, the more compatible the better.
>
> If for some reason, some backward-compatibility code becomes too
> difficult to maintain then perhaps yes we can remove it, but not
> before.

Hmm, I’m not entirely sure what to think here. On one hand, I very much agree
with you that it’s better if Org is compatible with older versions just by
having a bit of extra code left in org-compat.el. However, if many bits of Org
use Emacs 24/25/26 functions that /aren’t/ covered in org-compat.el (as I think 
is
currently the case) that leads to bits of Org that are covered by org-compat.el
and bits that aren’t, and so I imagine this currently produces inconsistently
buggy behaviour in old versions of Emacs.

If this were just a question of fully supporting older Emacs versions at no
extra cost, I’d be inclined to respond as you have, but I think the problem we
really have is whether it’s better to provide /partial/ support for older 
versions
of Emacs? Personally I’m more inclined towards an all-or-nothing approach.

All the best,
Timothy