One of the ways I'm hopeful that cargo can improve in this area is through the work being done on rust-semverver. If crates.io can either determine semver compl

One of the ways I'm hopeful that cargo can improve in this area is through the work being done on rust-semverver. If crates.io can either determine semver compliance or, perhaps, deny releases that are not properly semantically versioned, it would give cargo more license to select a single version to satisfy diamond dependency graphs. Those diamond dependency graphs are one of the ways that package management is famously very much unsolved.