<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On 23/02/2011, at 3:41 PM, Simon Josefsson wrote:</div><blockquote type="cite"><div><font class="Apple-style-span" color="#000000"><br></font>Possibly there is a typo on the IANA page [1], because [2] says the TLD<br>name is рф which starts with U+0440. Visiting some russian web sites,<br>for example [3], suggests that use of the РФ variant is common. The РФ<br>variant works fine in the web browser GNU IceCat (which uses IDNA2003).<br></div></blockquote></div><br><div>The lower-case string (рф, U+0440 U+0444) is the one that is delegated. It has historically been IANA practice to refer to all TLDs in upper-case to avoid confusion, and our software was written to upper-case the strings with that in mind. However since then IDNs have been introduced and this behaviour presents undesired consequences with IDNs.</div><div><br></div><div>We are working on a complete revision to how the root zone database is presented that should be launched shortly, and the IDN strings will no longer be upper-cased, shown as both U-label and A-label, etc.etc.</div><div><br></div><div>kim</div><div><br></div></body></html>