Shapes Constraint Language (SHACL) publication history Date Status 20 July 2017 Recommendation 8 June 2017 Proposed Recommendation 11 April 2017 Candidate Recommendation Snapshot 3 March 2017 Working Draft 2 February 2017 Working Draft 14 August 2016 Working Draft 30 May 2016 Working Draft 28 January 2016 Working Draft 8 October 2015 First Public Working Draft