Difference between "Optimum" and "Maximum" Proactive Defense?

Hello

When I install comodo firewall I can select one option among

-Firewall only
-Firewall with Optimum Proactive Defense
-Firewall with Maximum Proactive Defense +

What is difference ?
Just The difference on settings? :slight_smile:

Or installing something more When “Firewall with Maximum Proactive Defense +” is check ?

Thanks