compatibility matrix for different UC applications

[tachyon05]

I have CUCM, CUC, and CER version 9.1.  I need to upgrade them to 11.5, but I couldn't find any documentation on version compatibility.  For example, if I upgrade CUCM to version 11.5, will the new CUCM version work with old CUC and CER version 9.1 or vice versa?  I imaging this should work but would like to see some official documentation before proceeding.  Thanks

[Jaime Valencia]

Refer to the CUC compatibility matrix and the RN of CER for that information.