HTML 5 differences from HTML 4. Abstract HTML is the core language of the World Wide Web.
The W3C publishes HTML5 and HTML5.1. The WHATWG publishes HTML, which is a rough superset of W3C HTML5.1. HTML 5. Latest Published Version: Latest Editor's Draft: Previous Versions: Editors: Robin Berjon, W3C Steve Faulkner, The Paciello Group. Is Geolocation part of HTML5?