Thanks for this suggestion @MikeMcQ
When you said this
The (other options) in that command are whatever you need for config-dir or any other overrides. You would point those at your 3.3.0 as you have been.
I wanted to understand, there is config_dir parameter in renewal.conf and same option is specified on certbot command line. So, which one will certbot look at while trying to renew the certificate. Should both be the same ?