"The Unicode Codepoints and IDNA", Patrik Faltstrom, 5-May-08. ( bytes)

This document specifies rules for deciding whether a codepoint, considered in isolation, is a candidate for inclusion in an Internationalized Domain Name. It is part of the specification of IDNA2008.

"Internationalizing Domain Names for Applications (IDNA): Definitions, Background and Rationale", John Klensin, 10-May-08. ( bytes)

Several years have passed since the original protocol for Internationalized Domain Names (IDNs) was completed and deployed. During that time, a number of issues have arisen, including the need to update the system to deal with newer versions of Unicode. Some of these issues require tuning of the existing protocols and the tables on which they depend. This document provides an overview of a revised system and provides explanatory material for its components.

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