Web Services Eventing (WS-Eventing) publication history Date Status 13 December 2011 Recommendation 27 September 2011 Proposed Recommendation 28 April 2011 Candidate Recommendation Snapshot 5 August 2010 Last Call Working Draft 30 March 2010 Last Call Working Draft 17 December 2009 Working Draft 24 September 2009 Working Draft 25 June 2009 Working Draft 17 March 2009 Working Draft