So I'm still using 2012 SP1, and I've added CU3 to the setup (at least I think I have). If anyone knows how to check for this let me know.
Anyways, I'm able to deploy Windows 8.1 perfectly fine in my MDT task sequence with UDI, but I've ran into a hitch where applications do not deploy because Windows 8.1 is not listed under Operating Systems for requirements. There's only Windows 8 and Windows RT.
What am I doing wrong? Do I need to update to R2 for this function?