Question About Windows Server 2019 Minimum FFL

[Mike D]

Hello,

I'm looking over the documentation for the Active Directory functional levels and I'm confused about the minimum functional level requirement for Windows Server 2019.  In the Windows Server 2019 section, it says that the minimum level for 2019 domain controllers is Windows Server 2008R2.  But in the Windows Server 2008 section, it says it supports Windows Server 2019 domain controllers.  Am I reading this wrong?

This is the resource I'm using:

https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/active-directory-functional-levels

Thank you.

[#2 · Accepted solution]

2008 R2 DFL minimum is correct. The doc you linked is correct.

[#3]

@Mike D I moved from a 2008 DC (not R2!) with DMF and FFL Windows Server 2008, to a 2019 domain controller this morning na had no problems at all as per;

Adding a Windows Server 2019/2016 Domain Controller

Pete