Today the XQuery Working Group published a Last Call Working Draft of XQuery 3.1 and XQueryX 3.1. Additional supporting documents were published jointly with the XSLT Working Group: a Last Call Working Draft of XPath 3.1, together with XPath Functions and Operators, XQuery and XPath Data Model, and XSLT and XQuery Serialization. XQuery 3.1 and XPath 3.1 introduce improved support for working with JSON data with map and array data structures as well as loading and serializing JSON; additional support for HTML class attributes, HTTP dates, scientific notation, cross-scaling between XSLT and XQuery and more. Comments are welcome through 7 November 2014. Learn more about the XML Activity.