Yes, as this new registration code allows you to install the latest SimaPro version and future updates. Go to Help>Register in SimaPro, and enter your registration name and new registration code.
This is especially important for the multi-user Classroom version. Enter the new registration code in each of the SimaPro clients at the same time to avoid problems. To save you time, we recommend to install one SimaPro client on the server and make a short cut to it from each workstation. This way you only have to enter a code for one SimaPro client to update all users. Similarly you only have to update one client if a software update is available.