Faré wrote:
A future maintainer of ASDF may extend the `(:version ,dependency ,minimum-version) pattern for specifying dependencies with a `(:version ,dependency ,minimum-version ,too-large-version) pattern that allows to specify an exclusive upper bound on compatible versions. This would allow finer specification of compatible version ranges than just a match on the major version. But I didn't implement it. I leave it as an exercise for whoever volunteers to replace me, since I'm definitely leaving active maintenance of ASDF and unwilling to implement new features, though I will still fix bugs until a new maintainer rises.
Created a launchpad ticket for this.
cheers, r