- What impact (if any) will there be on existing users?
- existing ACLs with CREATE permission on Cluster will still allow users to create any topics
- clients expecting an error in CreateTopicResponse will receive
TOPIC_AUTHORIZATION_FAILED(29) instead of
in the Java client, both are mapped to subclasses of AuthorizationException;
handling any auth error likely requires human intervention intervention.
- If we need special migration tools, describe them here.
- not needed