https://docs.buf.build/faq

You want to add a version to the top of buf.yaml:

version: v1beta1

Note that right now, everything continues to work, which is why you haven't had any issues, but we will likely enforce the version key for buf.yaml at v1.0.

It may be an opportune time to check out buf generate as well :-) https://docs.buf.build/generate-usage Let us know if you have any questions!