Windows 10 Insider Preview Build 19042.450 (20H2) 

Hello Windows Insiders, today we’re releasing 20H2 Build 19042.443 (KB4566782) to Windows Insiders in the Beta Channel. We have fixed an issue in Universal Windows Platform (UWP) apps that allows single sign-on authentication when an app does not have the Enterprise Authentication capability. With the release of CVE-2020-1509, UWP applications might begin prompting the user […]

情報源: Announcing Windows 10 Insider Preview Build 19042.450 (20H2) | Windows Experience Blog

Beta Channel向け。基本的にはCU。