Where in a WSDL contract is the wsdl version number defined?

I have grabbed a wsdl defintion from a live web service but cannot find which xml element or http link d开发者_C百科efines the version number of wsdl standard used.

There is no version number in the WSDL. WSDL 2.0 uses a different namespace, http://www.w3.org/ns/wsdl", instead of http://schemas.xmlsoap.org/wsdl/.