Domains with an Outdated Functional Level

medium

Description

The functional level of a domain or forest determines the advanced features that are accessible within that domain or forest. By increasing the functional level, new features become available that may provide additional security options.

Solution

The Domain Functional Level (DFL) should be compliant with the oldest Windows Server version of the domain.

See Also

Forest and Domain Functional Levels

Understanding Active Directory Domain Services (AD DS) Functional Level

What's new in Windows Server 2025

Indicator Details

Name: Domains with an Outdated Functional Level

Codename: C-DOMAIN-FUNCTIONAL-LEVEL

Severity: Medium