> Haskell is a research language The language standard is from 1998, and is mostly unchanged since then. We now have Haskell 2010 and quite a few compiler exte

> Haskell is a research language The language standard is from 1998, and is mostly unchanged since then. We now have Haskell 2010 and quite a few compiler extensions, but none of the experimental ones are necessary to be used in production. The researchy ones have their benefits, but they also make it pretty clear that they are things not to be toyed with lightly in production code.