W3C:

2008-03-14: The XML Query Working Group has published the Candidate Recommendation of XQuery Update Facility 1.0. This document defines an update facility that extends the XML Query language, XQuery. The XQuery Update Facility provides expressions that can be used to make persistent changes (including node insertion, deletion, modification, and creation) to instances of the XQuery 1.0 and XPath 2.0 Data Model. The Working Group also published today two additional documents that will become Working Group notes: XQuery Update Facility 1.0 Requirements and XQuery Update Facility 1.0 Use Cases. Learn more about the Extensible Markup Language (XML) Activity. (Permalink)