User blog comment:Ohmyn0/Making your wiki HTML5 compliant/@comment-1292629-20120707211635/@comment-4674838-20120707224746

If you're asking for a publicly-available, comprehensive list of wikis that have been upgraded, no, there's not one. It's your responsibility to check Special:Version to see if your wiki has been upgraded. There will likely be another announcement when the entire process is complete.