Hi,
Range dependencies are a key feature of RPM 4.14 in F27
Infrastructure tooling now support them,
so the ban have been removed from the packaging Guidelines
https://fedoraproject.org/wiki/Packaging:Guidelines#Rich.2FBoolean_depend...
https://pagure.io/packaging-committee/issue/559
This mean we can start using this long awaiting feature :)
Here is an example
https://src.fedoraproject.org/rpms/phpcov/c/ffb3c7db6036243e95efff1107fb9...
Cheers,
Remi