Casper and duplicate entries in client list

I'm using Casper to push out the 6867.6400 client to about 3,000 MACs. I just noticed I now have duplicate entries for each upgraded MAC in my SEPM console. One has the older 6865.6200 client and the other has the new 6867 client.

Short of deleting 3000 entries, is there something I need to configure to not display duplicate entries?

I could just let them age out normally after two weeks, but I have automated jobs that run based on certain paramaters, old client versions is one.