A version 3 of the draft is ready which will explicitly limit the IETF UTF-8 version to 4 byte characters. This is because (a) we have never before used UTF-8 for non-Unicode and (b) we can not find implementations handling 5 and 6 byte implementations for the new ISO 10646 which have many more codepoints.IP o Patrik to take action on elevating RFC2279 to Standard.