Keywords: RevisionCommentSupplement history 1.png a screenshot of page Instance action history of MediaWiki on Mozilla Firefox 15 0 1 running on Microsoft Windows XP with SP3 There is a revision which does not have a supplementary comment MediaWiki contains File User icon 2 svg File Feed-icon svg and File Poweredby mediawiki 88x31 png Vector http //www mozilla org/firefox/ Mozilla Firefox 15 0 1 and the others 2012-09-22 Burthsceh MediaWiki developers Mozilla Foundation and the others free screenshot <nowiki></nowiki> MediaWiki GPL User icon 2 svg Tango project Feed-icon svg MTL Poweredby mediawiki 88x31 png w en User Anthere w en User Eloquence and Kevin Ingersoll extension Vector GPL Mozilla Firefox 15 0 1 MPL-2 0 GPL GFDL Cc-by-sa-3 0 RevisionCommentSupplement |