HTTP/3 - Wikipedia
HTTP/3 is the third and upcoming major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web, alongside HTTP/1.1 and HTTP/2. HTTP/3 runs over QUIC, which is published as RFC 9000. HTTP semantics are consistent across versions: the same request methods, status codes, and message fields are typically applicable to all versions.
https://en.wikipedia.org/wiki/HTTP/3#Server
