Working Draft: XML Schema 1.1 Structures
The XML Schema Working Group has released an updated Working Draft of XML Schema 1.1 Part 1: Structures. XML schemas define shared markup vocabularies, the structure of XML documents which use those vocabularies, and provide hooks to associate semantics with them. Simplifications and changes in this draft are to sections on rules for checking validity, "all" groups, the PSVI, conformance, fallback for lax validation, particles and wildcards, among other revisions. Visit the XML home page.