Summary 

The May 20, 2021 Windows updates extend the Key Management Service (KMS) for Windows Server 2016 and Windows Server 2019 to enable the activation of Windows Server 2022 long-term servicing channel (LTSC) when it becomes available.

In addition to installing the May 20, 2021 Windows updates on the KMS Host, a KMS Generic Volume License Key (GVLK) that supports Windows Server 2022 is required to be installed. The associated KMS GVLKs for these products are documented in KMS client setup keys as they become available.

References

Windows Server release information

Windows Server installation and upgrade

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