Forum Discussion
DavidYorkshire
Dec 11, 2025Iron Contributor
Exchange SE - forest functional level
According to this:
https://learn.microsoft.com/en-us/exchange/plan-and-deploy/supportability-matrix
Exchange SE doesn't yet support the Server 2025 functional level. Is there any indication of when this will arrive? With CU1?
Thanks
1 Reply
- Scott_SchnollCopper Contributor
It's true that Exchange Server SE does not support the Windows Server 2025 FFL, but even if it did, it would not provide any specific benefits for Exchange. AFAIK, CU1 will not introduce support for Windows Server 2025 FFL.
Your Domain Functional Level (DFL) can be Windows Server 2025, though.
Out of curiosity, do you have other applications that require a higher FFL? Or is there some other reason that Windows Server 2025 FFL interests you?