Not many people understood what HTTP/2 is about. I think it’s easy to misunderstand: HTTP/2 is faster, allows better support for a lot of things that are not relevant to what I want to point out.
HTTP/2 is a sign that our old technology is failing. The web is built on a lot of aging technology, and HTTP is just one of these. DNS comes to mind, such a critical resource, still vulnerable to simple attacks. It’s a miracle that the web works, however, the presence of HTTP/2 means that things can and should be improved.
HTTP/2 signals that the old ways of doing things are wasteful and are not expressive enough. They can’t support the needs of current day netizens. There are a lot of things to be discussed, and security is one of them. HTTP/2 brings a focus on the one thing that nobody has and everyone wants. Security, secrecy, safety for data. It’s not a solved problem, it just makes it harder for private individuals to break it. But at least people are thinking about that.
HTTP/2 discards plaintext for structured octet streams. Compresses information. Shows that there’s a limit to convenience and we need to get down to the metal to take back those bits and bytes. Things are simpler, and allow for more complex scenarios.
And HTTP/2 means that no student will be able to write that homework (a web-server) from scratch anymore. Not in the first week after they learn what sockets are. Now the web-server becomes something more consistent, and it requires a lot more reading.