We have installed the Cubus software on a managed network and would like to prevent the update from being initiated from each client.

In managed networks, the update can be suppressed for each client. Read here how to configure it.

If a new update is available, all users are informed via CubusExplorer about upcoming updates, but the update can only be performed from a central location.

It is also possible to disable automatic notification for all users. You can also find the description here.