bug#63800: 30.0.50; [ELPA] Inaccurate installation instructions for built-in packages

[Ihor Radchenko <yantar92@posteo.net>]

Philip Kaludercic <philipk@posteo.net> writes:

>> Perhaps a simpler alternative is to stop referencing 'package-install'
>> and instead point uses to 'M-x list-packages'.
>
> I think this would be better as well.  A lot of users don't even know
> what version they use, so we should have to describe how to find that
> out as well.

I hope that we do not have a situation on ELPA where a package cannot be
installed at all on older Emacs.

> ... And if that isn't enough, we would also have to explain
> what core, built-in and ELPA packages are, and how they interact.  Not
> worth it, IMO.

I think it is still worth mentioning that some packages may already be
shipped with Emacs. I do not feel too strongly about this though.

I am OK with changing the installation/upgrade instructions to M-x
list-packages for built-in packages.

-- 
Ihor Radchenko // yantar92,
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