The CUACA install and configuration guides contain CUCM compatibility information, have you reviewed them?
Yes, they are. For CUAC 11.0 (latest) see:
Cisco Unified Attendant Console Advanced Version 11.0 is compatible with Cisco Unified Communications Manager Versions 9.0(1) through 11.0(1). Cisco Unified Communications Manager Express is not supported.
CUCM 11.5 is also supported, though this data sheet has not been updated.