Any bugs found in Happy should be reported to me: Simon Marlow <simonmar@microsoft.com> including all the relevant information: the compiler used to compile Happy, the command-line options used, your grammar file or preferably a cut-down example showing the problem, and a description of what goes wrong. A patch to fix the problem would also be greatly appreciated.

Requests for new features should also be sent to the above address, especially if accompanied by patches :-).