[cisco-voip] CUCM 7.1.3 add Sub

[cisco.voip]

All, I need to add additional CUCM Sub's and I have recently upgrade to 
CCM 7.1.3.
I only have the 7.1.2 Media, I originally installed with, can I add the 
Sub's with the 7.1.2 cd's and then upgrade or do I need to
get hold of the 7.1.3 install CD's?

Thanks