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From: Tim Cross <theophilusx@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: [PATCH] Fix window width when line numbers present
Date: Tue, 23 Nov 2021 18:05:10 +1100	[thread overview]
Message-ID: <87ee77xs0l.fsf@gmail.com> (raw)
In-Reply-To: <87h7c3za31.fsf@gnu.org>

Bastien <bzg@gnu.org> writes:

> Hi Ihor,
> Ihor Radchenko <yantar92@gmail.com> writes:
>> The text is mostly clear. However, there is a slight confusion about
>> actual current Emacs version vs. planned Emacs version.
> I've rephrased it a bit to focus on "releases", not "versions":
>   We aim at keeping the latest stable version of Org compatible with
>   the *last three major releases of Emacs*.
>   For example, if the latest release of Emacs is 28.x, then you can
>   assume that the latest release of Org is compatible with Emacs 28.x,
>   27.x and 26.x, but not with Emacs 25.x.
>> Should we target "current" Emacs 28 for main? Should we target Emacs
>> version+1 as current on main all the time or maybe just when new
>> Emacs release branch is created, but not yet released? It is not
>> fully clear.
> These paragraphes on Worg try to explicit reasonable expectations 
> for users and are thus focusing on stable releases only.
> Expectactions for development versions are another story: I am in
> favor of not trying to commit to _any_ expectactions for Org's main.
> For example, I would not mind a feature on main that relies on a new
> feature in the Emacs development branch, as long as we manage to keep
> the promise that the next Org stable is usable with the older Emacs
> releases.

So what your saying is that if the current main branch relies on a
new feature in the current Emacs development branch, then org must also
have a compatibility function so that the feature works with at least
the last 2 released versions (possibly 3 since we don't know when the
new Emacs version will be released and we may need/want to release main
before the new Emacs version is released).

So basically, if you want to use a new feature in development Emacs, you
will also need to implement a compatibility version for the previous 2
or 3 Emacs versions. This probably sounds worse than it is in practice
because most of the time, once you have a compatibility implementation
for the previous version, it will likely work with the previous 2 or 3
versions. It further means that a new feature added into Emacs cannot be
used in org without a compatibility version until it has been in Emacs
for 3 versions. 

  reply	other threads:[~2021-11-23  7:15 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-21 18:41 Matt Huszagh
2021-11-21 19:14 ` Timothy
2021-11-21 21:08   ` Nicolas Goaziou
2021-11-21 21:14     ` Matt Huszagh
2021-11-21 21:16       ` Bastien
2021-11-21 21:22         ` Matt Huszagh
2021-11-22  5:14           ` Bastien
2021-11-22  5:31             ` Timothy
2021-11-22  5:44               ` Bastien
2021-11-22  5:51                 ` Supported Emacs version (was: [PATCH] Fix window width when line numbers present) Timothy
2021-11-22  6:05                   ` Supported Emacs version Bastien
2021-11-22  6:12                     ` Timothy
2021-11-22  6:39                       ` Bastien
2021-11-22  8:04                         ` Timothy
2021-11-22 10:26                           ` Bastien
2021-11-22 11:55                 ` [PATCH] Fix window width when line numbers present Ihor Radchenko
2021-11-22 12:40                   ` Tim Cross
2021-11-23  5:59                   ` Bastien
2021-11-23  7:05                     ` Tim Cross [this message]
2021-11-22  3:16     ` Timothy
2021-11-21 19:19 ` Timothy

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