New version of haskell-platform is available: 2014.2.0.0 Current version in fedora: 2013.2.0.0 One of the most important updates is that haskell-platform 2014 uses ghc 7.8. The wiki page (http://fedoraproject.org/wiki/Haskell_Platform) shows that ghc 7.8 will be shipped in fedora 21, but there's nothing about haskell-platform 2014
F22 will include ghc-7.8