The installation program for the Gateway Server supports direct upgrades from the latest two versions of the product. To upgrade from earlier versions of the product requires that you perform a phased upgrade approach, as shown in the following illustration:
The following diagrams provide a high-level overview of the end-to-end upgrade process. Each step in the process also includes a link to the corresponding documentation.
Recommended upgrade process for small/medium environment
Recommended upgrade process for medium/large environment