Status: Accepted Owner: vogt.a...@gmail.com Labels: Priority-Low Component-Core New issue 464 by vogt.a...@gmail.com: Use MonadCatchIO http://code.google.com/p/xmonad/issues/detail?id=464 instance MonadCatchIO X could simplify catchX, and possibly be useful to users. On the other hand, this would add a dependency. http://hackage.haskell.org/package/MonadCatchIO-mtl