my bet is it has something to do with Filippo Valsorda having left google, but that's pure speculation on my part.
Though, in hopes you see this, I have to ask: Is there any sort of plan for if you wanted to step down from a maintainers role of the go crypto packages?
You're sort of known as "the" go crypto person, so I guess it occurred to me that your bus factor might be quite high. Any thoughts you can give to assuage fears in that regard? Is there anything the community can do to share the load, short of becoming cryptography experts?