This is a detailed document describing HTTP/2 (RFC 7540), the background, concepts, protocol and something about existing implementations and what the future might hold.

See https://daniel.haxx.se/http2/ for the canonical home for this project.

See https://github.com/bagder/http2-explained for the source code of all book contents.


I encourage and welcome help and contributions from anyone who may have improvements to offer. We accept pull requests, but you can also just file issues or send email to daniel-http2@haxx.se with your suggestions!

/ Daniel Stenberg

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