I've been trying to get a definitive list of prerequisites for the upgrade to Exchange 2013 CU7, but every time I find another site with info it says something different.
I know I need to have Domain functional level at 2008 SP1 to run the Schema extension, no problem there. However, I found something that tells me I need to have the Exchange servers running .NET Framework 4.5.2 and Windows Management Framework 4.0, but the same site then says this is actually needed on the machine used to prepare AD. that means it needs to be one of the domain controllers running these.
Other sites say these need to be installed but do not say which server(s) need them.
Can anyone give me the list of prerequisites? The information I managed to find on the Microsoft site mentioned nothing about the domain functional level, I only found this requirement after trying to run the schema extension and getting a report the DFL needs to be 2003 native mode or above, I ran a targeted search for DFL requirements and found a table listing this for different versions of Exchange.
This is frustrating to say the least, makes carrier pigeons seem a viable alternative right now!