Windows 10 build 18977

Windows 10 build 18977 is an unleaked build of Windows 10 May 2020 Update. It was showcased in the video "Building apps for Windows 10 Desktops and expanding reach w/ Windows Virtual Desktop" uploaded on YouTube by Microsoft 365 Developer on 19 May 2020, as well as in various sessions at the Microsoft Ignite 2019 conference.