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The changes to the Specification are as follows. This list of
changes is also listed in Appendix B of the specification, Errata.
1. The RDF/XML version of the RDF Schema and OWL Ontology, ont.rdf,
is now the normative version instead of the Turtle version.
2. Encoding of documents has changed from having to be one of UTF-8,
UTF-16, or UTF-32 to allowing any encoding but recommending
3. Mentions of US-ASCII have been removed as redundant.
4. Use of RSS 0.92 as an example in the motivation section as been
changed to RSS 0.91.
5. All keyword MUSTs in section 4 have been changed to to musts.
6. The OWL cardinality constraints are now datatyped with
7. All OWL qualified cardinality constraints have been split up.
8. rss:item/@rdf:about has been made mandatory.
9. :Image/:link is now optional in the RDF Schema and OWL ontology.
10. :URI is now an instance of owl:Class.
11. Cardinalities of 1 have been changed to minCardinality.
12. Introductory mention of "up-to-the-minute content" has been
changed to be less restrictive.
13. The RELAX NG compact schema now uses content groups for
14. The erroneous grouping constraint, only noted in the changes
appendix, has been removed.
15. rss:image has been added as a property to the RDF Schema and OWL
16. Leigh Dodds's status suggestion text has been incorporated.
17. The applicability of xml:base is now fully specified.
18. More information has been added on the semantics of
19. Attributes in no namespace are now disallowed in Any sections,
reflecting a constraint of RDF/XML.
20. A non-normative maching readable mappings to RSS 1.0 appendix has
21. The RDF Schema and OWL ontology now uses annotation properties.
22. The OWL Ontology is now in OWL Lite instead of OWL Full.
"... our intention has been to ensure that producers of RSS 1.0 have minimal upgrade impact, which means that we're not opposed to people having a harmless url element lying around. RSS 1.0 requires it, so RSS 1.1 deprecates it. We can always remove it in RSS 1.2."
Two aggregators, BottomFeeder and JabRSS have already added support for it.