Wow, just reading this RFC makes my more comfortable compare to reading RFC7540. Possibly because they hided a huge portion of technical details under the keyword QUIC.

I'm not sure I should continue to implement my HTTP/2 server now, as HTTP/3 will overlay almost (as far as I can tell) all the benefit that provided by HTTP/2.

One thing makes me confused though, since:

> The QUIC version being used MUST use TLS version 1.3 or greater as its handshake protocol.

And most TLS 1.3 implementation supports RFC6066, then why:

> .... This may be done using the Server Name Indication (SNI) [RFC6066] extension to TLS <bold>or using some other mechanism</bold>.

? I mean, why include any other mechanism while SNI can do the job?