RFCs Related to IDNA

RFC	Title	Date	Status	Latest Announcement
3454	Preparation of Internationalized Strings ("stringprep")	December 2002	Proposed Standard; Obsoleted by RFC 7564
3490	Internationalizing Domain Names in Applications (IDNA)	March 2003	Proposed Standard; Obsoleted by RFC 5890, RFC 5891
3491	Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)	March 2003	Proposed Standard; Obsoleted by RFC 5891
3492	Punycode: A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)	March 2003	Proposed Standard	2022-08-15
3743	Joint Engineering Team (JET) Guidelines for Internationalized Domain Names (IDN) Registration and Administration for Chinese, Japanese, and Korean	April 2004	Informational
4690	Review and Recommendations for Internationalized Domain Names (IDNs)	September 2006	Informational
5890	Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework	August 2010	Proposed Standard
5891	Internationalized Domain Names in Applications (IDNA): Protocol	August 2010	Proposed Standard	2022-08-15
5892	The Unicode Code Points and Internationalized Domain Names for Applications (IDNA)	August 2010	Proposed Standard
5893	Right-to-Left Scripts for Internationalized Domain Names for Applications (IDNA)	August 2010	Proposed Standard
5894	Internationalized Domain Names for Applications (IDNA): Background, Explanation, and Rationale	August 2010	Informational
5895	Mapping Characters for Internationalized Domain Names in Applications (IDNA) 2008	September 2010	Informational
7564	PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols	May 2015	Proposed Standard; Obsoleted by RFC 8264
8264	PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols	October 2017	Proposed Standard
8753	Internationalized Domain Names for Applications (IDNA) Review for New Unicode Versions	April 2020	Proposed Standard