The IESG has approved the Internet-Draft 'UTF-8, a transformation format of ISO 10646' <draft-yergeau-rfc2279bis-05.txt> as a Standard. This document has been reviewed in the IETF but is not the product of an IETF Working Group. The IESG contact person is Ted Hardie. Technical Summary This document updates the specification of UTF-8, an encoding of the UCS which is designed to be compatible with many current applications and protocols. UTF-8 has the characteristic of preserving the full US-ASCII range, providing compatibility with file systems, parsers and other software that rely on US-ASCII values but are transparent to other values. This memo obsoletes and replaces RFC 2279. Working Group Summary This draft and the interoperability reports associated with it were discussed on the IETF-charsets@iana.org mailing list. Archives may be found at http://lists.w3.org/Archives/Public/ietf-charsets/ among other places. Protocol Quality This specification was reviewed for the IESG by Patrik Falstrom.