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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
SGML
XML
XSD

Beta releases

RELAX NG
SGML
XML
XSD