DocBook 4.x

DocBook V4.x is defined normatively with XML and SGML DTDs.

The Technical Committee provides the DocBook 4.x schemas in other schema languages, including RELAX NG and W3C XML Schema, but the XML DTD is the normative schema.

Current releases

RELAX NG

4.5, 03 Oct 2006
4.4, 28 Jan 2005
4.3, 31 Mar 2004
4.2, 19 Dec 2003

SGML

4.5, 03 Oct 2006
4.4, 27 Jan 2005
4.3, 31 Mar 2004
4.2, 18 Dec 2003
4.1, 18 Dec 2003

XML

4.5, 03 Oct 2006
4.4, 27 Jan 2005
4.3, 31 Mar 2004
4.2, 18 Dec 2003
4.1.2, 18 Dec 2003

XSD

4.5, 03 Oct 2006
4.4, 28 Jan 2005
4.3, 31 Mar 2004
4.2, 18 Dec 2003

Candidate releases

RELAX NG

4.5CR3
4.5CR2
4.5CR1
4.4CR4, 28 Jan 2005
4.4CR3, 17 Dec 2004
4.4CR2, 21 Oct 2004
4.4CR1, 16 Sep 2004
4.3CR3, 21 Jan 2004
4.3CR2, 21 Dec 2003
4.3CR1, 19 Dec 2003

SGML

4.5CR3, 02 Jun 2006
4.5CR2, 09 Mar 2006
4.5CR1, 29 Jun 2005
4.4CR4, 22 Dec 2004
4.4CR3, 17 Dec 2004
4.4CR2, 21 Oct 2004
4.4CR1, 16 Sep 2004
4.3CR3, 21 Jan 2004
4.3CR2, 21 Dec 2003
4.3CR1, 18 Dec 2003

XML

4.5CR3, 02 Jun 2006
4.5CR2, 09 Mar 2006
4.5CR1, 29 Jun 2005
4.4CR4, 22 Dec 2004
4.4CR3, 17 Dec 2004
4.4CR2, 21 Oct 2004
4.4CR1, 16 Sep 2004
4.3CR3, 21 Jan 2004
4.3CR2, 21 Dec 2003
4.3CR1, 18 Dec 2003

XSD

4.5CR3
4.5CR2
4.5CR1
4.4CR4, 28 Jan 2005
4.4CR3, 17 Dec 2004
4.4CR2, 21 Oct 2004
4.4CR1, 16 Sep 2004
4.3CR3, 21 Jan 2004
4.3CR2, 21 Dec 2003
4.3CR1, 18 Dec 2003

Beta releases

RELAX NG

4.5b1, 05 May 2005
4.4b2, 26 Aug 2004
4.4b1, 09 Jun 2004
4.3b5, 19 Dec 2003
4.3b4, 19 Dec 2003
4.3b3, 19 Dec 2003

SGML

4.5b1, 05 May 2005
4.4b2, 26 Aug 2004
4.4b1, 09 Jun 2004
4.3b5, 18 Dec 2003
4.3b4, 18 Dec 2003
4.3b3, 18 Dec 2003
4.3b2, 18 Dec 2003

XML

4.5b1, 05 May 2005
4.4b2, 26 Aug 2004
4.4b1, 09 Jun 2004
4.3b5, 18 Dec 2003
4.3b4, 18 Dec 2003
4.3b3, 18 Dec 2003
4.3b2, 18 Dec 2003

XSD

4.5b1, 05 May 2005
4.4b2, 26 Aug 2004
4.4b1, 09 Jun 2004
4.3b5, 18 Dec 2003
4.3b4, 18 Dec 2003
4.3b3, 18 Dec 2003