The first task for preparing an upgrade is to check the VMware Interoperability Matrix, as follows:

1. Go to your web browser and navigate to the VMware Product Interoperability Matrices at http://www.vmware.com/go/interop:

2. Select the Interoperability tab.
3. Select your VMware NSX for vSphere as the first solution.
4. Add VMware vSphere hypervisor (ESXi) as your second solution.
5. Add any other solutions that are specific to your environment.
6. Ensure all solution versions are compatible with one another before proceeding to download the NSX installation media.