Hello, I would like to make three proposals, in order of importance IMHO: 1. Export String from Data.String. Most modules in base and on Hackage of the form: Data.<type> also export <type>. I think it's surprising and confusing that Data.String doesn't conform to this pattern. 2. Unexport String from Data.Char. I feel less strongly about this one, but in general I think it is good that a symbol is exported from as few modules as possible. 3. Export the String operations: lines, words, unlines and unwords from Data.String. I feel even less strongly about this one. However these are operations on Strings so it makes sense to export them from Data.String. As a counter argument you could say these operations either receive or produce a _list_ of Strings so they only belong in Data.List. If we accept 3 then in the spirit of "export a symbol from as few modules as possible", you may expect a fourth proposal: Unexport the String operations: lines, words, unlines and unwords from Data.List. However I think this will break lots of programs. I have no problem also discussing this one though. Discussion deadline: 3 weeks from now: Wednesday 10 November. Ticket with patches: http://hackage.haskell.org/trac/ghc/ticket/4422 Regards, Bas