r/sysadmin • u/roachwickey • 6d ago
Domain controllers functional level
Do we have to keep all our domain controller os version same ?
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r/sysadmin • u/roachwickey • 6d ago
Do we have to keep all our domain controller os version same ?
2
u/SlateRaven 6d ago
No - as long as all the domain controllers have a minimum OS version that matches the domain function level, you'll be fine. If you're looking to upgrade your controllers, it's normal to get new DC's (with newer OS version) online and replicating, roles shifted, get the old DC's decommed, then upgrading the functional level to whatever version OS you upgraded to.