Internationalized Domain Names in Applications (IDNA): Protocol

This specification has been revised 3 times since RFC 3490 (2003). Each document below formally obsoleted the one before it; the versions still in force are listed first.

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 5891 (August 2010).