That's a proposed standard, looks like what obsoletes is the draft standard.
https://www.ietf.org/process/rfcs/
> Proposed Standard (PS). The first official stage. Many standards never progress beyond this level.
> Draft Standard. An intermediate stage that is no longer used for new standards.
> Internet Standard. The final stage, when the standard is shown to be interoperable and widely deployed.
That was not your claim. Feel free to read back what you wrote, I quoted it in my first reply.