If a CPU has more than 32 cores, additional CPU licenses are required as announced in 'Update to VMware’s per-CPU Pricing Model'. vSphere 7.0 requires one CPU license for up to 32 physical cores.For information on viewing your license keys, and for links to information on managing your license keys, see How to view license keys in My VMware (2006831). You can view and manage your license keys in My VMware.Please view Important information before upgrading to vSphere 6.5 (2147548) and Important information before upgrading to vSphere 7.0 (78487). For example, the ESXi 6.7 features are automatically enabled after you upgrade from ESXi 6.5 to 6.7.

When upgrading between different 6.x releases or between different 7.x releases, the existing licenses work and enable the features of the software once upgraded.

For information on upgrading license keys, see How to upgrade license keys in My VMware (2006974).

The same is true when upgrading from vSphere 6.x to 7.x. It is not possible to use vSphere 5.x licenses on vSphere 6.x.

The vSphere 5.x, 6.x and 7.x releases require different license keys.

Vsphere 6 keygen magnitude