Hello,
Typically, OpenSSH updates are provided through Windows updates, and if the version remains unchanged after an update, it indicates that the latest supported version by Windows Server 2019 is still 7.7. The update frequency and availability of specific versions through this method might not align with the rapid release cycle of OpenSSH.
As for installing other source packages on Windows Server 2019, using third-party packages could lead to compatibility issues and might not be supported by Microsoft.
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