kim.davies at icann.org
Thu Feb 24 00:52:28 CET 2011
On 23/02/2011, at 3:41 PM, Simon Josefsson wrote:
Possibly there is a typo on the IANA page , because  says the TLD
name is рф which starts with U+0440. Visiting some russian web sites,
for example , suggests that use of the РФ variant is common. The РФ
variant works fine in the web browser GNU IceCat (which uses IDNA2003).
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.
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.
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