- <xs:attribute name="major" use="required" type="versionNumber" />
- <xs:attribute name="minor" use="required" type="versionNumber" />
- <xs:attribute name="release" use="required" type="versionNumber" />
- <xs:attribute name="build" use="required" type="versionNumber" />
+ <xs:attribute name="major" use="required" type="xs:nonNegativeInteger" />
+ <xs:attribute name="minor" use="required" type="xs:nonNegativeInteger" />
+ <xs:attribute name="release" use="required" type="xs:nonNegativeInteger" />
+ <xs:attribute name="build" use="required" type="xs:nonNegativeInteger" />