What’s next for SemVer

Instead, Bundler allowed you to specify a range of versions you’d accept, and it would help figure out which version you should use, according to the SemVer rules. Fundamentally, version numbers are a communication tool, and SemVer provides a framework for said communication. We’ve formed a semver team, and we intend to start work on producing a new version of the spec.

Source: words.steveklabnik.com