This draft makes three references to RFC 4646, "Tags for Identifying Languages," which was obsoleted in September 2009 by RFC 5646 (still BCP 47). RFC 5646 introduced numerous changes, by far the most significant of which was to add support for language subtags based on ISO 639-3. This increased by almost 15 times the number of languages that can be tagged using this mechanism. -- Doug Ewell | Thornton, Colorado, USA | http://www.ewellic.org RFC 5645, 4645, UTN #14 | ietf-languages @ is dot gd slash 2kf0s  _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf