Re: Quick installation of Emacs modules?

In <jwvboli6fch.fsf-monnier+gnu.emacs.help <at> gnu.org> Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>> Well, I wrote that under the apparently erroneous impression that
>> the version I downloaded by following the instructions given in
>> tromey.com/elpa/install.html was the latest/"official" version of
>> package.el.  FWIW:

>That's just an old version kept around for Emacs<24.

Fascinating.

So how is one supposed to find the latest/"official" version?