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IDNA2008 and Unicode 11.0.0

Document Type Replaced Internet-Draft (individual in art area)
Expired & archived
Author Patrik Fältström
Last updated 2024-04-01 (Latest revision 2019-03-11)
Replaced by draft-faltstrom-unicode12
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Stream WG state (None)
Document shepherd Russ Housley
Shepherd write-up Show Last changed 2018-12-03
IESG IESG state Replaced by draft-faltstrom-unicode12
Action Holders
Consensus boilerplate Yes
Telechat date (None)
Responsible AD Barry Leiba
Send notices to Russ Housley <>
IANA IANA review state IANA OK - Actions Needed

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document describes the changes between Unicode 6.3.0 and Unicode 11.0.0 in the context of IDNA2008. Some additions and changes have been made in the Unicode Standard that affect the values produced by the algorithm IDNA2008 specifies. Although IDNA2008 allows adding exceptions to the algorithm for backward compatibility; however, this document does not add any such exceptions. This document provides the necessary tables to IANA to make its database consisstent with Unicode 11.0.0. To improve understanding, this document describes systems that are being used as alternatives to those that conform to IDNA2008. TO BE REMOVED AT TIME OF PUBLICATION AS AN RFC: This document is discussed on the mailing list of the IETF.


Patrik Fältström

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)