HTTP
2

In January–March 2012, HTTP Working Group (HTTPbis) announced the need to start to focus on a new HTTP/2 protocol (while finishing the revision of HTTP/1.1 specifications), maybe taking in consideration ideas and work done for SPDY.

After a few months about what to do to develop a new version of HTTP, it was decided to derive it from SPDY.

In May 2015, HTTP/2 was published as RFC 7540 and quickly adopted by all web browsers already supporting SPDY and more slowly by web servers.
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