http2 explained

http2 explained – This document describes http2 at a technical and protocol level. Background, the protocol, the implementations and the future.

Some highlights:

  • The http2 spec is expected to ship in June 2014 (a month or two away!)
  • http2 is heavily based on Google’s SPDY
  • http2 is binary
  • http2 fixes a lot of issues with HTTP 1.1 (pipelining, head of line blocking, etc)
  • http2 brings new features (server push, block, reset)
  • http2 will keep the URL schemes (http and https)
  • http2 will mostly be implemented for https (via protocol negotiations in TLS)
  • http2 already has a variety of implementations: Firefox and Google Chrome (MSIE coming), cURL, Goolge, Twitter, Facebook. ¬†Apache and Nginx expected.

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