- Update to v0.9.0
Features
* A new reporter hook rejecting_candidate is added, replacing backtracking. The hook is called every time the resolver
rejects a conflicting candidate before trying out the next one in line. #101
Bug Fixes
* Some valid states that were previously rejected are now accepted. This affects states where multiple candidates for the
same dependency conflict with each other. The information argument passed to AbstractProvider.get_preference may now contain
empty iterators. This has always been allowed by the method definition but it was previously not possible in practice. #91