Where's try got to?

[Michael Abbott]

Using GHC 2.02, where has
        try :: IO a -> Either IOError a
got to?

        According to my copy of the "Standard Libraries for the Haskell
Programming Language", Version 1.4, the IO library exports:
        hWaitForInput, try, bracket, bracket_.

I can't find any of these functions in the GHC IO library!