• Upgrade to protoc 3.19.3 support.
• Add PACKAGE_NO_IMPORT_CYCLE lint rule to detect package import cycles.
• Add buf beta registry {plugin,template} {deprecate,undeprecate}.
• Add warning when using enterprise dependencies without specifying a enterprise remote in the module's identity.
• Remove digest, and created_at fields from the buf.lock. This will temporarily create a new commit when pushing the same contents to an existing repository, since the ModulePin has been reduced down.
• Add manpages for buf.