Subject: Re: bug#78844: 30.1; feature request: public interface for querying builtin packages and versions

From: Stefan Monnier <[email-masked]>
Date: Sat, 28 Jun 2025 11:38:29 -0400

> The renaming could be fine if the intended users of this API will
> indeed only want to know about versioned built-in packages, and won't
> care about those who have no versions.  Is that in fact true?  If so,
> why aren't unversioned packages important?

FWIW, I'd consider it an error if an entry in
`package--builtin-versions` has a nil "version".
There are no such things as "unversioned packages" in this respect.
So, I think the code is OK but the docstring should not mention that
we return nil for packages without a version.

        Stefan