roelvandijk/base-unicode-symbols — pull request #5 by mvv (2012-07-06 10:32:04+00:00)
Title: Relaxed dependency on base upper bound to < 5.

GHC HEAD comes with base-4.6 now. You can go with < 4.7 if you are feeling conservative, but this bumps are getting tedious (trying to build a package that pulls in a lot of dependencies here). I'd appreciate if I didn't have to do this every 4.x release. Also, Edward Kmett [does it](http://hackage.haskell.org/package/semigroups).