Web Services Description Language (WSDL) Version 2.0 Part 0: Primer publication history Date Status 26 June 2007 Recommendation 23 May 2007 Proposed Recommendation 26 March 2007 Last Call Working Draft 27 March 2006 Candidate Recommendation Snapshot 6 January 2006 Candidate Recommendation Snapshot 3 August 2005 Last Call Working Draft 10 May 2005 Working Draft 21 December 2004 Working Draft