New location for topic about Active Directory functional levels and features

TechNet had duplicated content about Active Directory functional levels. The duplication caused inconsistencies as one location got updated but not the other. So the duplication has been eliminated, but I am told it has made it harder to find for some of you who searching for this information. So to improve the discoverability of this information, I am posting this reminder that a complete list of Active Directory domain and forest functional levels and the features that are available at each level is published at:

Understanding AD DS Functional Levels  (

There is also information about how Active Directory functional levels work at

Active Directory Functional Levels Technical Reference (

Any feedback on these topics is appreciated.

Justin [MSFT]

Active Directory Documentation Team

This posting is provided “AS IS” with no warranties, and confers no rights.

Comments (2)

  1. Anonymous says:

    you’ve got an extra ) in there.

  2. Thanks for for the correction – the link is fixed now.