Hi everyone. The Principals field is no longer required by the sns CLI tool. Accordingly it has been removed from the example sns_init.yaml in sns-testing.
If you’re using dfx sns, you can install the new version with dfx extension install sns --version 0.4.1. (You may have to remove the old version first with dfx extension uninstall sns.)
If you’re downloading sns directly from https://download.dfinity.systems, you can use f79476803e097d9fd5f7e67d45f6818348b51ac9 as the commit to get this change.