From what Chris has written you don't need to upgrade but if you need/what the better integration you should. In regards to the upgrade question After a little more research. If you are using a deployment plan, it will upgrade all SAS clients on your pc, from what I can tell you have no option to change. So EG4.3 will also be updated, and so will other clients like DIS, SMC, IMS etc if they already exist on your PC Barry ... View more