W3C XMLActivity
XML was designed to describe, store, transmit, and exchange data.
XML Tutorial
To learn more about XML, please read ourXML Tutorial。
XML Versions
XML 1.0
As a W3C Recommendation, XML 1.0 was published on February 10, 1998.
XML 1.0 (Second Edition)
As a W3C Recommendation, XML 1.0 (SE) was published on October 6, 2000.
The second edition is merely a correction (bug fix) based on incorporating the errata of the first edition.
XML 1.0 (Third Edition)
The third edition is merely a correction (bug fix) based on incorporating the errata of the first and second editions.
XML 1.1
As a Working Draft, XML 1.1 was published on December 13, 2001, and as a Candidate Recommendation on October 15, 2002.
XML 1.1 allows almost all Unicode characters to be used in names.
Other W3C XML Technologies
XML Namespaces
XML Namespaces provide a method for defining element and attribute names used in XML by associating them with URI references.
XML Linking (XLink, XPointer, and XML Base)
The XML Linking Language (XLink) allows you to insert links into XML documents.
The XML Pointer Language (XPointer) allows addresses to link to specific parts of an XML document.
XML Base is a standard for providing default references to external XML resources. (Similar to <base> 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 | February 10, 1998 | |
| XML 1.0 (2.Ed) | October 6, 2000 | |
| XML 1.0 (3.Ed) | February 4, 2004 | |
| XML 1.1 | February 4, 2004 | |
| XML 1.1 (2.Ed) | August 16, 2006 | |
| XML 1.0 Namespaces | January 14, 1999 | |
| XML 1.0 Namespaces SE | March 4, 2004 | |
| XML 1.1 Namespaces | March 4, 2004 | |
| XML 1.1 Namespaces SE | August 16, 2006 | |
| XML Infoset | October 24, 2001 | |
| XML Infoset (2.Ed) | February 4, 2004 | |
| XML Base | June 27, 2001 | |
| XLink 1.0 | June 27, 2001 | |
| XPointer Framework | March 25, 2003 | |
| XPointer element() scheme | March 25, 2003 | |
| XPointer xmlns() scheme | March 25, 2003 | |
| XInclude 1.0 | December 20, 2004 | |
| XInclude 1.0 SE | November 15, 2006 | |
| XML Processing Model | April 5, 2004 | |
| XMLHttpRequest Object | August 3, 2010 |