What is the best way to determine if all of my System Center Components are up to date?

Indications in the GUI are not reliable so you will have to check for the version of specific files; some kind of powershell script would probably do the trick.

Hi,

If you are looking out for latest URs applied on the System Center servers, you can use the following PS cmd

Get-Hotfix -computername SCOMServer, SCCMServer, OrchestratorServer, SCSMServer,.....

But, I think you need to enhance it a lot as it will give all that KBs installed

For Get version of SCOM, you need to use following command

Get-SCOMManagementGroup | ft skuforlicense, version, timeofexpiration a