Editing XPath 2.0 (section)

{{Short description|Version of the XML Path language}}
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'''XPath 2.0''' is a version of the [[XPath]] language defined by the [[World Wide Web Consortium]], W3C. It became a recommendation on 23 January 2007.<ref>{{cite web|url=http://www.dblab.ntua.gr/~bikakis/XML%20and%20Semantic%20Web%20W3C%20Standards%20Timeline-History.pdf |title=XML and Semantic Web W3C Standards Timeline|date=4 February 2012}}</ref> As a W3C Recommendation it was superseded by [[XPath 3.0]] on 10 April 2014.

XPath is used primarily for selecting parts of an [[XML]] document. For this purpose the XML document is modelled as a tree of nodes. XPath allows nodes to be selected by means of a hierarchic navigation path through the document tree.

The language is significantly larger than its predecessor, [[XPath 1.0]], and some of the basic concepts such as the data model and type system have changed. The two language versions are therefore described in separate articles.

XPath 2.0 is used as a sublanguage of [[XSLT 2.0]], and it is also a subset of [[XQuery]] 1.0. All three languages share the same data model (the [[XQuery and XPath Data Model|XDM]]), type system, and function library, and were developed together and published on the same day.