[Feature Request] report domain functional level, schema versions in SetupAssist.ps1 script

[boogieshafer]

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with the introduction of windows 2025 (and the new domain functional level that comes with it) it looks like the AD level checks in SetupAssist.ps1 tool might need some enhancement

--> apparently the windows 2025 functional level is currently UNSUPPORTED by exchange based on comments on the exchange team blog
-----> this should probably be flagged both SetupAssist and HealthChecker if it is in fact a non-supported configuration

--> the current check for "Exchange AD Level" in SetupAssist seems to check the locally installed bits, NOT the version of configuration actually deployed to the directory itself
-----> eg. you have run /PrepareAD at the directory level (say for CU15), but the check is still showing CU14

Describe The Request
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improve the AD level checks for SetupAssist.ps1 to

• display current functional level
• display currently deployed exchange configuration version in the directory
• maybe additionally report the locally installed version

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[boogieshafer]

reference to the comment on Exchange Team blog

https://techcommunity.microsoft.com/blog/exchange/released-2025-h1-cumulative-update-for-exchange-server/4362055/replies/4377351