The update is free for users with a valid license of Activation Server 4.
The update requires a running instance of Activation Server 4
•The Activation Server 4.2 can accept Transactions from prior DLL versions
•The Activation Server 4.2 supports all features from Licence Protector 4.0. It is mandatory to upgrade to Activation Server version 4.2 if Licence Protector MAC Edition 2 is used