Today, we released a new Windows 10 Preview Build of the SDK to be used in conjunction with Windows 10 Insider Preview (Build 19577 or greater). The Preview SDK Build 19577 contains bug fixes and under development changes to the API surface area.
UPDATE 3/12: Windows 10 Insider Preview Fast Build 19582.1000 - March 12
Source: https://blogs.windows.com/windowsexperience/2020/03/05/announcing-windows-10-insider-preview-build-19577/
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