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<p><a href="../../"><img border="0" alt="W3C" src="../../Icons/WWW/w3c_home"/></a> <a href="../../UbiWeb/" rel="in-domain"><img src="../../Icons/ubi212" alt="Ubiquitous Web Domain" height="48" width="212"/></a></p>

<h1>XML Core Working Group Public Page</h1>

<p>This is the public web page for the XML Core Working Group, part of the W3C
<a href="../">XML Activity</a>. There is also a <a href="../Group/Core">member-only page</a> with telephone numbers for
conference calls, and other internal details.</p>

<p><a name="updates">This page</a> only contains general information and therefore isn't updated on
a regular basis. For latest information on the Working Group activities, look
at the <a href="http://www.w3.org/Search/Mail/Public/search?keywords=&amp;hdr-1-name=subject&amp;hdr-1-query=agenda&amp;index-grp=Public__FULL&amp;index-type=t&amp;type-index=public-xml-core-wg">agenda</a>
and <a href="http://www.w3.org/Search/Mail/Public/search?keywords=&amp;hdr-1-name=subject&amp;hdr-1-query=minutes&amp;index-grp=Public__FULL&amp;index-type=t&amp;type-index=public-xml-core-wg">minutes</a>
of the teleconferences.</p>
<ul>
  <li><a href="#Introduction">Introduction</a></li>
  <li><a href="#Charter">Charter and Participation</a></li>
  <li><a href="#IPR">IPR Disclosures</a></li>
  <li><a href="#Publications">Publications</a></li>
  <li><a href="#Conformance">Conformance Testing</a></li>
  <li><a href="Translations.html">Translations</a></li>
</ul>

<h2><a name="Introduction">Introduction</a></h2>

<p>The XML Core Working Group publishes the formal specification for the
Extensible Markup Language (XML) and mantains errata for that document.</p>

<p>The XML Core Working Group also works on several other specifications.</p>

<h2><a name="Charter">Charter and Participation</a></h2>

<p>The XML Core Working Group operates according to this <a href="/XML/2009/02/xml-core-charter.html">charter</a>. You can get involved by <a href="/Consortium/#membership">joining the W3C</a> or by reading working
drafts listed <a href="#Publications">on this page</a> and sending your
comments to the addresses given in each draft.  The Working Group must respond
to all public comments, and feedback from implementors and users is welcomed.
The Working Group particularly welcomes feedback
about difficulties in writing programs that conform to the specifications or
about errors in the specifications.</p>

<p>The XML Core Working Group conducts much of its business in public via a
mailing list whose <a href="http://lists.w3.org/Archives/Public/public-xml-core-wg/">archive</a> is
available to anyone.</p>

<p>Please do not write to us asking for help learning about XML. See the <a href="../">Main XML page</a> for pointers to tutorials or visit your local
bookshop or newsagent for books and magazines.</p>

<h2><a name="IPR">IPR Disclosures</a></h2>

<p>The XML Core Working Group is chartered under a Royalty-Free basis under
the <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February
2004 W3C Patent Policy</a>. The <a href="http://www.w3.org/2004/01/pp-impl/18796/status">XML Core Working Group
Patent Policy Status</a> tabulates the documents covered by this policy and
the status of disclosures etc. made by WG members with respect to those
documents. Earlier publications are covered by the <a href="http://www.w3.org/TR/2002/NOTE-patent-practice-20020124#sec-Disclosure">W3C
Current Patent Practice</a> and the members have made <a href="/2002/08/xmlcore-IPR-statements">public IPR disclosures</a> that are
compatible with this.</p>

<h2><a name="Publications">Publications</a></h2>

<p>The XML Core Working Group is responsible for several specifications; some
of these are published as W3C Recommendations, and some are still drafts. If
you implement a draft, you must not claim to have implemented a formal
Recommendation (nor a <i>standard</i>).  You should not assume this page
reflects the very latest status of work in progress:  see <a href="#updates">above</a> for the best places to look for up-to-date information.</p>

<p>Specifications are aimed at people writing software to implement them;
they are not tutorials.</p>

<h3><a name="xml">Extensible Markup Language (XML)</a></h3>

<h4>Extensible Markup Language (XML) 1.0 (Fifth Edition)</h4>

<p><cite><a href="/TR/2008/REC-xml-20081126/">Extensible Markup Language
(XML) 1.0 (Fifth Edition)</a></cite> <strong>W3C Recommendation</strong> 26
November 2008, Tim Bray, Jean Paoli, C. M. Sperberg-McQueen, Eve Maler,
François Yergeau eds.</p>

<p>There is also a page for <a href="/XML/xml-V10-5e-errata">errata</a>.</p>

<p>The Fifth Edition supersedes the original <a href="/TR/1998/REC-xml-19980210">XML 1.0 Recommendation</a> published on 10th
February 1998.</p>

<h4>Extensible Markup Language (XML) 1.1 (Second Edition)</h4>

<p><cite><a href="/TR/2006/REC-xml11-20060816/">XML 1.1 (Second
Edition)</a></cite>, W3C Recommendation, 16 August 2006, Tim Bray, Jean
Paoli, C. M. Sperberg-McQueen, Eve Maler, François Yergeau, John Cowan,
ed.</p>

<p>There is also a page for <a href="/XML/xml-V11-2e-errata">errata</a>.</p>

<p>The Second Edition supersedes the original <a href="/TR/2004/REC-xml11-20040204/">XML 1.1 Recommendation</a> published on 4
February 2004.</p>

<p>XML 1.1 updates XML so that it no longer depends on the specific Unicode
version: you can always use the latest. It also adds checking of
normalization, and follows the Unicode line ending rules more closely.</p>

<p>You are encouraged to create or generate XML 1.0 documents if you do not
need the new features in XML 1.1; XML Parsers are expected to understand both
XML 1.0 and XML 1.1.</p>

<h3><a name="namespaces">Namespaces in XML</a></h3>

<h4>Namespaces in XML 1.0 (Second Edition)</h4>

<p><cite><a href="/TR/2006/REC-xml-names-20060816/">Namespaces in XML (Second
Edition)</a></cite>, W3C Recommendation, 16 August 2006, Tim Bray, Dave
Hollander, Andrew Layman, Richard Tobin, eds.</p>

<p>There is also a page of <a href="/XML/2006/xml-names-errata">errata</a>.</p>

<p>The Second Edition supersedes the original <a href="/TR/1999/REC-xml-names-19990114/">Namespaces in XML</a> published on 14
January 1999.</p>

<h4>Namespaces in XML 1.1 (Second Edition)</h4>

<p><cite><a href="/TR/2006/REC-xml-names11-20060816/">Namespaces in XML 1.1
(Second Edition)</a></cite>, W3C Recommendation, 16 August 2006, Andrew
Layman, Tim Bray, Dave Hollander, Richard Tobin, eds.</p>

<p>There is also a page for <a href="/XML/2006/xml-names11-errata">errata</a>.</p>

<p>The Second Edition supersedes the original <a href="/TR/2004/REC-xml-names11-20040204/">Namespaces in XML 1.1</a> published
on 4th February 2004.</p>

<p>Namespaces 1.1 incorporates all three published errata for Namespaces 1.0.
In addition it makes two substantive changes:</p>
<ol>
  <li>you can undeclare a namespace: that is, you can remove the association
    between a namespace prefix and a URI;</li>
  <li>Namespaces 1.1 allows IRIs as well as URIs.</li>
</ol>

<p>Note also that the Namespaces specification says nothing about what might
(or might not) happen if one were to attempt to dereference a URI/IRI used to
identify a namespace.</p>

<h3>XML Inclusions (XInclude) (Second Edition)</h3>

<p><cite><a href="http://www.w3.org/TR/2006/REC-xinclude-20061115/">XML Inclusions (XInclude) Version 1.0 (Second Edition)</a></cite>
<strong>W3C Recommendation</strong>, 15 November 2006. Jonathan Marsh, David
Orchard, Daniel Veillard.</p>

<p>Note that in a significant change from the first CR version of XInclude,
the REC uses a separate attribute for the optional XPointer rather than a
fragment identifier as part of the value of the <code>href</code> attribute.</p>
<!--* href="../../TR/1999/NOTE-xinclude-19991123#Requirements"&gt;requirements
    * href="2001/05/xinclude-issues"&gt;issues
    * feedback: http://lists.w3.org/Archives/Public/www-xml-xinclude-comments/
    *-->
<p>The Second Edition supersedes the original <a href="http://www.w3.org/TR/2004/REC-xinclude-20041220/">XML Inclusions (XInclude) Version 1.0</a> published
on 20 December 2004.</p>

<h3>XML Information Set (Second Edition)</h3>

<p><cite><a href="/TR/2004/REC-xml-infoset-20040204/">XML Infoset 2nd
Edition</a></cite> <strong>W3C Recommendation</strong> First published 24
October 2001, revised 4 February 2004, John Cowan, Richard Tobin</p>

<p>If any errata are found, they will be published as <a href="/2001/10/02/xml-infoset-errata.html">W3C XML Information Set
Errata</a>.</p>

<h3>xml:id</h3>

<p><cite><a href="/TR/xml-id/">xml:id</a></cite> <strong>W3C
Recommendation</strong>, 9 September 2005. Jonathan Marsh, Daniel Veillard,
Norman Walsh.</p>

<h3>XML Fragment Interchange</h3>

<p>There is no active work on this document due to a lack of feedback.
If you feel we should be doing more work in this area, please let us know
using the email address for comments given in the specification.</p>

<p><cite><a href="../../TR/xml-fragment">XML Fragment Interchange</a></cite>
(Candidate Recommendation as of 12 February 2001) Paul Grosso, Daniel
Veillard.</p>

<h3>XML Base</h3>

<p><cite><a href="http://www.w3.org/TR/2009/REC-xmlbase-20090128/">XML Base (Second Edition)</a></cite> <strong>W3C
Recommendation</strong>, 28 January 2009, Jonathan Marsh, Richard Tobin.</p>

<p>This document was originally produced by the XML Linking Working Group
and was transferred to the XML Core Working Group.</p>

 <p>The Second Edition supersedes the original <a href="http://www.w3.org/TR/2001/REC-xmlbase-20010627/">XML Base</a> published
on 27 June 2001.</p>

<h3>Associating Stylesheets with XML</h3>

<p><cite><a href="/TR/xml-stylesheet/">Associating Style Sheets with XML
documents</a></cite> <strong>W3C Recommendation</strong> James Clark</p>

<h2><a name="Conformance">Conformance Testing</a></h2>

<p>The <a href="../Test/">Extensible Markup Language (XML) Conformance Test
Suites</a> are primarily aimed at implementors of XML processors. Currently
this includes tests for</p>
<ul>
 <li>W3C XML 1.0 Recommendation</li>
 <li>Extensible Markup Language (XML) 1.0 (Second Edition)</li>
 <li>Extensible Markup Language (XML) 1.0 (Third Edition)</li>
 <li>Extensible Markup Language (XML) 1.1</li>
 <li>Extensible Markup Language (XML) 1.0 (Fourth Edition)</li>
 <li>Extensible Markup Language (XML) 1.1 (Second Edition)</li>
 <li><em>Proposed</em> Extensible Markup Language (XML) 1.0 (Fifth Edition)</li>
 <li>Namespaces in XML 1.0</li>
 <li>Namespaces in XML 1.0 (Second Edition)</li>
 <li>Namespaces in XML 1.1</li>
 <li>Namespaces in XML 1.1 (Second Edition)</li>
</ul>

<p>There is also an <a href="http://www.w3.org/XML/Test/XInclude/">XML
Inclusions (XInclude) Conformance Test Suite</a>.</p>
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  <small>$Revision: 1.54 $ $Date: 2009/10/20 14:28:42 $ by $Author: ht $</small><br/>
  <small><a href="../about-XML-area">policy/maintenance info</a></small>
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