On Wed, 2021-02-24 at 12:03 -0500, Leo Famulari wrote:
> [...]
> 
> It's reserved for security updates, and other very serious problems. An
> incompatibility with a single package — especially something
> non-critical like a game engine — does not qualify.
> 
> [...]

Thank you for your response!  This makes Guix a little clearer to me.