I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-curdle-ssh-kex-sha2-?? Reviewer: Roni Even Review Date: 2021-02-15 IETF LC End Date: 2021-02-24 IESG Telechat date: Not scheduled for a telechat Summary: The document is almost ready for publication as standard track RFC Major issues: Minor issues: It is not clear what is the backward interoperability is, I noticed that only rsa1024-sha1 is deprecated. It would be good to add some text maybe in section 4 that will explain it and maybe have some recommendations for client and server side. Nits/editorial comments: