Active Directory Domain Services Forest functional levels and Domain functional levels on windows server 2019

Each Active Directory Domain Services functional level has its own features and compatibility with other Windows Server operating systems on the Domain Controllers, you have to make sure all non-compatible Domain Controllers OS been migrated to supported operating system before raising the functional levels, and why there is no new functional levels for Windows server 2019 or Active Directory 2019? once you completed the upgrade of all the domain controllers in the forest to Windows 2019, Should we raise functional level to 2016 or 2019?

Also Read: Windows server 2016 co-existence and migrate/upgrade scenarios with Windows server 2012 R2/2008/2003

To answer the above, there is no new functional level for Windows 2019, the highest functional level offered by Active Directory 2019 is “Windows Server 2016

Also Read: Difference between Windows server 2016 and 2019

Till Windows server 2016 you can raise Domain functional level to prevent installing Domain Controllers on legacy operating systems, on Windows server 2019 you can’t do that as there is no functional level for Windows 2019

Also Read: Windows Server 2019 Features

Hope this will helped you to understand the available Active Directory Forest functional levels and Domain functional levels on windows server 2019

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