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# W3C XML Activity * * * XML is designed to describe, store, transmit and exchange data. * * * ## XML Tutorial For more information about XML, please read our (#). * * * ## XML Versions ### XML 1.0 As a W3C Recommendation, XML 1.0 was released on February 10, 1998. ### XML 1.0 (Second Edition) As a W3C Recommendation, XML 1.0 (SE) was released on October 6, 2000. The second edition is merely a correction based on the first edition's errata (bug fixes). ### XML 1.0 (Third Edition) The third edition is merely a correction based on the first and second editions' errata (bug fixes). ### XML 1.1 As a Working Draft, XML 1.1 was released on December 13, 2001, and as a Candidate Recommendation on October 15, 2002. XML 1.1 allows almost all Unicode characters in names. * * * ## Other W3C XML Technologies ### XML Namespaces (Namespaces) XML namespaces provide a method for defining element and attribute names used in XML by associating them with a URI reference. ### XML Linking (XLink, XPointer, and XML Base) XML Linking language (XLink), allows you to insert links into XML documents. XML Pointer language (XPointer), allows linking to specific parts of an XML document. XML Base is a standard for default referencing external XML resources. (Similar to in HTML). ### XInclude XInclude is a mechanism for merging XML documents using elements, attributes, and URI references. * * * ## W3C XML Specifications and Timeline | Specification | Draft/Proposal | Recommendation | | --- | --- | --- | | [XML 1.0](http://www.w3.org/TR/1998/REC-xml-19980210 "Extensible Markup Language (XML) 1_0") | | February 10, 1998 | | [XML 1.0 (2.Ed)](http://www.w3.org/TR/2000/REC-xml-20001006 "Extensible Markup Language (XML) 1_0 (Second Edition)") | | October 6, 2000 | | [XML 1.0 (3.Ed)](http://www.w3.org/TR/2004/REC-xml-20040204/ "Extensible Markup Language (XML) 1_0 (Third Edition)") | | February 4, 2004 | | [XML 1.1](http://www.w3.org/TR/2004/REC-xml11-20040204/ "Extensible Markup Language (XML) 1_1") | | February 4, 2004 | | [XML 1.1 (2.Ed)](http://www.w3.org/TR/xml11/ "Extensible Markup Language (XML) 1_1 (Second Edition)") | | August 16, 2006 | | [XML 1.0 Namespaces](http://www.w3.org/TR/1999/REC-xml-names-19990114/ "Namespaces in XML") | | January 14, 1999 | | [XML 1.0 Namespaces SE](http://www.w3.org/TR/xml-names/ "Namespaces in XML 1_0 (Second Edition)") | | March 4, 2004 | | [XML 1.1 Namespaces](http://www.w3.org/TR/2004/REC-xml-names11-20040204/ "Namespaces in XML 1_1") | | March 4, 2004 | | [XML 1.1 Namespaces SE](http://www.w3.org/TR/xml-names11/ "Namespaces in XML 1_1 (Second Edition)") | | August 16, 2006 | | (http://www.w3.org/TR/2001/REC-xml-infoset-20011024/ "XML Information Set") | | October 24, 2001 | | [XML Infoset (2.Ed)](http://www.w3.org/TR/xml-infoset/ "XML Information Set (Second Edition)") | | February 4, 2004 | | (http://www.w3.org/TR/xmlbase/ "XML Base") | | June 27, 2001 |