FYI github.com changed their SSH key this morning: https://github.blog/2023-03-23-we-updated-our-rsa-ssh-host-key/

RSA only - explains why nothing on my computer complained

Ha! They did the equivalent of checking in their

~/.*

and pushing it to a public github repo! The number of times this was done by Twitter OSS in the ~2010s was embarrasing.

I got this warning today early morning