It appears that Corey Bonnell <corey.bonn...@digicert.com> said: >Thanks for the pointer to this text. It is a very interesting statement, >mainly because the illustrative example does not align >with the first sentence. The A-label “xn--53h” contains a single code point >“Hot Beverage” U+2615. This code point was >first assigned in Unicode 4.0, so it is not part of the IDNA 2003 character >repertoire. ...
See the ToASCII descrition in IDNA2003, which says to turn on the AllowUnassigned flag, so in practice 2003 allows codepoints added later, I assume in the hope that they wouldn't have to update it each time Unicode changed. We now know why that was a bad idea, and IDNA2008 has explicit lists that have to be updated. If you look at the .COM zone, you will find a bunch of old IDN names with junk characters registered using IDNA2003 before the current codepoint rules were established. R's, John _______________________________________________ Uta mailing list Uta@ietf.org https://www.ietf.org/mailman/listinfo/uta
