Defender and Active Directory Schema versions
Defender 5.6/5.7 has been tested on versions of Windows up to 2012 R2 including 2012 Forest and Domain functional levels.
Defender 5.9.1 added official support for Windows Server 2016.
Defender 5.9.1 to 5.9.5 has been tested up to 2016 Forest and Domain functional levels.
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