A user recently suggested changing the associativity of ($=) from [[ infixr 0 ]] to [[ infixl 1 ]]. This allows the following expressions to be equivalent: run $ enumerator $$ enumeratee =$ enumeratee =$ iteratee run $ enumerator $= enumeratee $$ enumeratee =$ iteratee run $ enumerator $= enumeratee $= enumeratee $$ iteratee Although this is technically a backward-incompatible change, I feel it's small enough that it could go in a minor release *if nobody depends on the current behavior*. So, if anybody using 'enumerator' will have code broken by this change, please speak up. If I don't hear anything in a week or so, I'll assume it's all clear and will cut the new release. ------------------------- Second, I was asked whether there's a mailing list for enumerator stuff. To my knowledge there isn't, so I started one on librelist. To subscribe and/or post, send an email to haskell.enumerator@librelist.com . Archives are available at http://librelist.com/browser/haskell.enumerator/ . I plan to make release announcements there (for releases not important enough for haskell-cafe), and it might be useful for general discussion.