Hi Joseph. The major revision must match meaning if you have 24 and your integrator uses 32, you will not be able to connect to the PLC. Also, if you have version 36, you still will not be able to connect to the PLC. Since you have a license, you can download new versions as long as you have a support contract and it is probably worth it because it gives you 8 to 5 support, Monday through Friday.