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From: Leo Famulari <leo@famulari.name>
Subject: Re: List available versions of package.
Date: Tue, 2 Jul 2019 11:48:06 -0400
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To: Ricardo Wurmus <rekado@elephly.net>
Cc: help-guix@gnu.org

On Sun, Jun 23, 2019 at 12:46:35AM +0200, Ricardo Wurmus wrote:
> Hi Philippe,
> > Also, is it expected that packages from guix commits dating
> > from a few years ago will still work in this setting? Thanks!
> 
> Commits before the introduction of inferiors likely won’t work,
> unfortunately.

Additionally, at least a few source code tarballs of old package
versions will no longer be available online, at least not at the URLs in
our package definitions. There are source code archive fallbacks that
Guix will use but no guarantee they contain what you will need.