upgrade process

[Rodney Green]

Greetings. I've been using MailScanner for a few months now. It's
working fine.

I'm running MailScanner with Postfix. I would like to know how to tell
what version of MailScanner I'm running and also is there a procedure
for upgrading to the latest version? Any recommendations as far as
backing up the current install so I can revert to that, if needed, would
also be helpful.

Thank you,
Rod