[ ] Update all configs to use new defaults (rails app:upgrade)
[ ] Address exceptions raised by raise_on_missing_callback_actions (ensure authenticate_user! etc. filters are called/skipped for correct actions in correct controllers)
[ ] Migrate away from secrets.yml to encrypted credentials
rails app:upgrade)raise_on_missing_callback_actions(ensureauthenticate_user!etc. filters are called/skipped for correct actions in correct controllers)