@Anser Leon
Thanks for your posting on Q&A.
According to my research, the KB5008601 update has been published in 2021-11. (2021-11 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5008601))
The update has been superseded by the following updates:
2022-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5010195)
2022-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5009546)
2021-12 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5008207)
2022-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5010790)
2022-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5010790)
2022-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5010359)
2022-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5009546)
2022-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5009546)
2022-03 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5011495)
2022-04 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5012596)
2022-05 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5013952)
So it is recommended to install the latest Cumulative Update. In addition, the out of band update will be included into the next Cumulative Update in the same month. If you have already install the Cumulative Updates which been published after 2021-11, the KB5008601 update is not applicable to you.
Hope the above will be helpful.
Best regards,
Rita
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