On Mon, Aug 20, 2018, at 1:45 AM, Stefan Monnier wrote:
>>> I just tested the construction of a GNU ELPA package for CC-
>>> mode using>>> the :core thingy of elpa.git and everything looks good.
>> Who's going to be testing this?  I've a slight suspicion that
>> sometimes>> people add things to CC Mode that depend on things in master.
>> That would>> be subotimal for ELPA.
> 
> This has not proved to be a problem for other packages we handle this> way (e.g. soap-client, python.el, ...).
> One of the reasons is that it's so cheap&quick to release a new
> version> that such problems are trivial to solve if/when they show up.

cc-mode is not only used inside core Emacs, but also by third party
developers.
cc-mode has historically been shipped as part of Emacs, and has (as I've
understood things) tried to maintain a compatibility situation in line
with that: i.e. a minor Emacs release should not warrant breaking
changes in cc-mode.
When cc-mode has breaking changes, third-party major-modes deriving from
cc-mode trying to provide a reasonable level of compatibilty (thus
reducing friction for end-users), has previously had the option to check
against the running version of Emacs to decide which code-path to use.
As such, a change like this seems to impact third-party major-modes
deriving from cc-mode.
I'm not saying such a change universally and categorically will make
things worse (I can see some things improving too), but I think it
makes sense to consider the full impact of such changes before
committing to them.
--
Regards
Jostein Kjønigsen

jostein@kjonigsen.net 🍵 jostein@gmail.com
https://jostein.kjonigsen.net