Changelog for ghc-free-4.12.4-2.7.x86_64.rpm :

* Sun Jul 10 2016 psimonsAATTsuse.com- Update to version 4.12.4 revision 0 with cabal2obs.
* Mon Jan 18 2016 mimi.vxAATTgmail.com- update to 4.12.4
* Add instances for ExceptT: like ErrorT, but without an Error constraint.
* Support containers
* Support transformers 0.5
* Removed a number of spurious class constraints.
* Support comonad 5
* Thu Aug 06 2015 mimi.vxAATTgmail.com- update to 4.12.1
* Add instances of MonadCatch and MonadThrow from exceptions to FT, FreeT and IterT.
* semigroupoids 5, profunctors 5, and bifunctors 5 support.
* Sun Apr 26 2015 mimi.vxAATTgmail.com- initial commit