It is mentioned within this page (https://docops.ca.com/display/MAG40/Prepare+for+Installation), that before installing MAG, the gateway should be upgraded to 9.2.
I have already installed OAuth Toolkit 4.0 even if I use the Gateway version 9.1. Is it absolutely necessary to have Gateway 9.2 for MAG 4.0? In that case, I guess I should choose the MAG 3.3.
Thanks in advance.