Norm Walsh has released version 4.4 of
DocBook,
an XML application designed for technical documentation
and books such as Processing XML with Java.
This is a "maintainance release. It introduces no backwards-incompatible changes. All valid DocBook 4.3 documents are also valid DocBook 4.4 documents.
The genesis of this release is a bug in the catalog files for DocBook V4.3. The Committee decided to produce a 4.4 release, incorporating a few recent backwards-compatible changes, rather than simply produce a 4.3.1 release to fix the bugs."
New elements in DocBook 4.4 include
package, bibliolist, and biblioref.
Version 4.4 is available in XML and SGML DTDs. Unofficial RELAX NG and W3C XML schemas are also available