Proposed update of UTS #46, for Unicode domain names

UTS #46 “Unicode IDNA Compatibility Processing” is used by many applications to support internationalized domain names with non-English characters. The proposed update to Version 10.0 regenerates the UTS #46 data files based on new additions to the Unicode repertoire, and adds three new parameters for processing: CheckHyphens, CheckBidi, and CheckJoiners. These parameters allow implementations to reflect current practice in browsers. The note about the use of IDNA2008 now includes the number of “missing” IDNA2008 characters (26,568), and is reworded for clarity.

There are two review notes requesting feedback on the use of Joiner characters.

For details and information about how to provide feedback, please see Public Review Issue #347.

Unicode IDNA Compatibility Processing Proposed Update

Unicode IDNA Compatibility Processing technical standard (UTS #46) has a proposed update available, with modifications for alignment with the future Unicode 8.0. Most notable are the new Unicode 8.0 characters, and a caution about common assumptions in case folding.

Feedback is welcome through April 27, 2015. For further information and details about how to provide feedback, please see Public Review Issue #291.

PRI #264, UTS #46, Unicode IDNA Compatibility Processing

This UTS is being updated to synchronize with Unicode 7.0. The text is now open for public review, and the UTC is seeking feedback. Please see the PRI page for details and instructions on how to review this issue and provide comments: http://www.unicode.org/review/pri264/

Proposed updates for Unicode Collation and IDNA

The proposed update of UTS#10 Unicode Collation Algorithm (UCA) modifies the specification for certain edge cases (overlapping contractions), and tightens the requirements for well-formed collation element tables. The detailed descriptions of parametric tailoring options have been removed, and now refer to the corresponding section in LDML. That section adds new explanations and definitions. There are a number of improvements, including additional examples, and some rearrangement of text. See PRI #223

The data has been updated for the Unicode 6.2 beta review, and the associated CollationAuxiliary.txt file in CollationAuxiliary.zip now includes a description of the implicit fractional weight generation and the context syntax. For more details, see Modifications.

There is also a proposed update of UTS #46 Unicode IDNA Compatibility Processing. The data has been updated for the Unicode 6.2 beta review, with minor changes to the text. See PRI #224