W3C:

2008-07-15: The XML Query Working Group has published the First Public Working Drafts of XQuery 1.1 and XQuery 1.1 Use Cases. The former describes a query language called XQuery, which is designed to be broadly applicable across many types of XML data sources. This version of XQuery extends the version of the XQuery 1.0 Recommendation published on 23 January 2007; see the list of changes. The latter document describes usage scenarios that will impact the design of XQuery 1.1. Learn more about the Extensible Markup Language (XML) Activity. (Permalink)