There is a new effort from the community http://www.htacg.org/ upstream.
https://github.com/htacg/tidy-html5/ now says: This repository should be considered canonical for HTML Tidy as of 2015-January-15. I'd like to see this package updated to support HTML5 too, I'm happy to help. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org