HTTP/2 was developed by a group that is a part of the Internet Engineering Task Force. It was presented in December 2014, and approved on February 17, 2015. It is the first major revision to the HTTP network protocol used by the World Wide Web that was standardized since 1997. It was supported by the majority of major browsers such as Chrome, Opera, Firefox, Internet Explorer 11, Safari, Edge and Amazon Silk. In April of 2017 HTTP/2 is used by 13.2% of all websites according to W3Techs.