To be able to see Rapid Security Response updates and devices which have installed it.
Currently you cannot check for these updates on Lightspeed nor can you see when a device has had the Rapid Security Response update installed (eg you should be able to see 16.5.1 (c) when you click "check for OS updates" as well as being able to see 16.5.1 (c) in the "OS updates" tab - 16.5.1 was the iOS release prior to the Rapid Security Response of 16.5.1 (c)).