Deploy 12.1 RU2 from a SEPM running 12.1 RU1??

Can someone tell me if on a 12.1. RU1 Manager if you can deploy a 12.1 RU2 installation package from it? Or can you only deploy the RU2 package from an RU2 manager??

I'm basically looking to get RU2 on a few Windows 8 users but trying to see if I can do it without having to upgrade the SEPM to RU2.