Originally Posted by seranapearlin

HTML 5 is a new version of HTML and XHTML. It is a standard structure and content to make the World Wide Web The new standard includes features such as video playback, drag-and-that previously depended on third-party browser plug-ins such as Flash, Microsoft Silverlight and Google Gears.

Nearly same as old version or all changed?

HTML 5 is not a standard yet, it is only in it's earliest incarnation.