RELAX NG

There are no official versions of the RELAX NG Schema at this time. The DocBook Technical Committee is planning to migrate to RELAX NG officially in the DocBook V5.0 time frame.

In the meantime, these versions are derived from the DTD using Trang.

DocBook Schemas
What Is DocBook?
SGML
XML
RELAX NG 
DocBook RELAX NG 4.4CR4
DocBook RELAX NG 4.4CR3
DocBook RELAX NG 4.4CR2
DocBook RELAX NG 4.4CR1
DocBook RELAX NG 4.4b2
DocBook RELAX NG 4.4b1
DocBook RELAX NG 4.3
DocBook RELAX NG 4.2
W3C XML Schema
DocBook NG
Specifications
TC Minutes
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