Just some small questions: Are we really going to change the signatures of newForeignPtr and addForeignPtrFinalizer from those which GHC has for ages to the new "C finaliser only" ones? Why don't we use other names and deprecate the old ones? And what are the plans in this area for GHC 5.04.2?

GHC 5.04.2 won't adopt any library changes, as it's only a patchlevel release (we don't make API changes between patchlevels, only major releases). I don't really mind too much what names we use, I'd be fine with keeping the current names but changing the types if that's the concensus. Also still unresolved is what to do about atomicModifyIORef and friends, BTW. Cheers, Simon