XQuery, XSLT 2 and XPath 2 Are W3C Recommendations
The World Wide Web Consortium: http://www.w3.org/—23 January 2007—Based on widespread implementation experience and extensive feedback from users and vendors, W3C has published eight new standards in the XML Family to support the ability to query, transform, and access XML data and documents. The primary specifications are XQuery 1.0: An XML Query Language, XSL Transformations (XSLT) 2.0, and XML Path Language (XPath) 2.0; see the full list below.
When I wrote my JNB article on XQuery 1118 days ago, the specs were in final call status. I didn't realize then that it would take another three years for them to become W3C Recommendations.
(: Well, better late than never. :)