I have pushed a major package version of minio now. Existing installations won't auto-update . If you want to keep the old feature set, do not update the app. I recommend migrating away to something else (not sure what though), if you don't plan to update since it doesn't seem like it will get any more security updates even.
The change log for the new package:
IMPORTANT: MinIO has decided to remove all administration features from the console. The UI now only has an object browser. You must now use the mc CLI tool for creating keys and setting up permissions.
IMPORANT: OIDC Auth has been removed upstream as well. You can only access MinIO using admin credentials after this update. Access key creation is no longer possible .