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by ekr____ 46 days ago
A few points about the IETF process:

- As a practical matter, anything that is a Proposed Standard RFC is a standard. In principle, there is a two-level system with PS and Internet Standard (down from three levels) but most WGs don't bother to advance specifications past PS. For example, TLS and QUIC are both PS.

- RFC 9580 obsoletes RFC 4880, so from the perspective of the IETF, it supersedes it. Of course, this doesn't make people do anything.