Namespaces in XML 1.0 (Third Edition) is a W3C Recommendation

The XML Core Working Group has published Namespaces in XML 1.0 (Third Edition) as a W3C Recommendation. XML namespaces provide a simple method for qualifying element and attribute names used in Extensible Markup Language (XML) documents by associating them with namespaces identified by URI references. This version, which supersedes the Second Edition, includes no substantive changes. Among the accumulated errata which it incorporates is one of particular importance, which removes an incompatibility with the Fifth Edition of the XML 1.0 specification itself. Learn more about the Extensible Markup Language (XML) Activity.