Efficient XML Interchange (EXI) Format 1.0 (Second Edition) publication history Date Status 11 February 2014 Recommendation 22 October 2013 Proposed Edited Recommendation 10 March 2011 Recommendation 20 January 2011 Proposed Recommendation 8 December 2009 Candidate Recommendation Snapshot 19 September 2008 Last Call Working Draft 28 July 2008 Working Draft 26 March 2008 Working Draft 19 December 2007 Working Draft 16 July 2007 Working Draft