As an old-time Data Protector user, I think I remember that Client Upgrade was happening in parallel for UNIX (HP-UX) platforms. When I tried with 24.4 today, I see that the clients are updates one after the other (which takes significant time).
Similar I thought a "Check installation" would update the Linux kernel version number displayed in the Client list, but that also seems to do not happen any more.
Is my memory correct?