HTML5 Differences from HTML4 publication history Date Status 9 December 2014 Note 18 September 2014 Working Draft 28 May 2013 Working Draft 25 October 2012 Working Draft 29 March 2012 Working Draft 25 May 2011 Working Draft 5 April 2011 Working Draft 13 January 2011 Working Draft 19 October 2010 Working Draft 24 June 2010 Working Draft 4 March 2010 Working Draft 25 August 2009 Working Draft 23 April 2009 Working Draft 12 February 2009 Working Draft 10 June 2008 Working Draft 22 January 2008 Working Draft