First here are the requirements for performing any kind of Ubisecure CustomerID upgrade:
As Ubisecure CustomerID can be installed in two different ways: single node or high availability, you also need to select the appropriate upgrade for these installation types:
Relating to upgrading Ubisecure solutions in general, we have also added instructions here on what to do with Ubisecure CustomerID components when upgrading Ubisecure SSO: