Windows 10 build 17713 (rs prerelease)

Windows 10 build 17713 (rs_prerelease) is the earliest known build of Windows 10 May 2019 Update, being compiled 50 minutes after Windows 10 build 17713 (rs5_release). A  of this build for demonstrating the Web Sign-in feature of Windows was shown in the release announcement for the aforementioned build.