How to raise Domain and Forest Functional Levels

The minimum supported Forest Functional Level will be raised to 2008R2 in Cumulative Update 7 for all Exchange Server 2016 deployments.

Exchange 2020 SP3 RU11 or later is required for coexistence with Exchange 2016. There is no “Windows Server 2019” domain or forest functional ...

In order to be supported with Windows 2016 DCs, the Active Directory (AD DS) had to be at a minimum of Windows 2008 R2 Forest Functionality Level (FFL).

One of the minimum requirements for Exchange 2016 installation is active directory forest function level which should be 2008 or later.

Forest functional level of Windows Server 2008 or higher. All domain controllers in the forest must be running Windows Server 2008 or later. Exchange 2016 Coexistence... · Active Directory and Domain...

The Readiness Check is failing due to “Active Directory Forest Functional level in the organization must be upgraded to Windows Server 2008 R2 or later”

Windows Server 2016 domain controllers are supported, as long as the Forest Functional Level is Windows Server 2008 R2. Exchange 2016 and all ...

The following table lists the supported Active Directory environments for Exchange Server. Version, Active Directory servers, Forest Functional Levels. Exchange ...

The minimum supported Forest Functional Level will be raised to 2008R2 in Cumulative Update 7 for all Exchange Server 2016 deployments.

Prerequisites. Active Directory Domain and Forest functional level should be 2008 or higher . Active Directory domain controllers should be running Windows Server 2008 or later.