Z3986 Issues Detail

Explicitely use a dated reference to XML 1.0: 4th edition

Submitted By:   Daniel Weck

Status:   Submitted

Issue Type:   Specification

Assigned To:   

Issue Description:   The XML 1.0 5th edition was released [1] on 26th November 2008. Amongst other things, this revision introduces changes in the rules that specify the characters allowed in XML element and attribute names, and XML IDs. This is a very controversial [2] change since it is a major step forward in terms of user-agent implementations, and it is likely to break existing processing systems: for example, the DAISY 3.0 ANSI/NISO Z39.86-2005 specification currently uses an undated reference to XML 1.0, which defaults to the latest revision (5th). However, most, if not all DAISY user-agents currently implement the previous, simpler revision (4th). As a result, it is now possible to produce DAISY 3 content that cannot be played or processed by existing implementations. The suggested fix is to explicitly date the reference to XML 1.0 to its 4th revision. [1] http://www.w3.org/TR/xml [2] http://blog.jclark.com/2008/10/xml-10-5th-edition.html