HTML5 is the fifth revision of the HTML standard designed by the W3C in 2004. It contained provisions for new elements to enable video and audio playback, lower-level access to graphical hardware and websockets. The standard also included a controversial DRM provision for companies that wanted to move from Flash or other plugins, while maintaining protection over their IP.

Since November 1st of 2016, HTML5 was moved to version 5.1.

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