Upgrade vCenter (windows) with external PSC from 6.0 Update 1b to 6.0 Update 3b

Hi everyone,

We want to upgrade vCenter (windows) with external PSC from 6.0 Update 1b to 6.0 Update 3b. I would like to know what is the correct path.

First I have to upgrade PSC and then vcenter? I understand that the upgrade of PSC I have do it in the interface management of PSC, it is correct? And the upgrade of vCenter it is with the ISO.

Thanks for the help

Best regards