XQuery Update Facility 1.0,
Don Chamberlin, Jonathan Robie, Michael Dyck,
et. al., Editors.
World Wide Web Consortium,
25 January 2011.
This version is https://www.w3.org/TR/2011/PR-xquery-update-10-20110125/.
The
latest version
is available at https://www.w3.org/TR/xquery-update-10/.