>"Versioned Protocols"
W3C Verifiable Credentials workgroup has published a set of specs for "cryptosuites", which are versioned:
ecdsa-2019 https://w3c.github.io/vc-di-ecdsa/
eddsa-2022 https://w3c.github.io/vc-di-eddsa/
You may find them useful if you're signing JSON objects.