Jul 24 2020
"Hello Windows Insiders, today we’re releasing 20H2 Build 19042.421 (KB4568831) to Windows Insiders in the Beta Channel."
What’s new in Build 19042.421:
Theme-aware tiles in Start, ALT + TAB between apps and sites, Improved pinned sites in Microsoft Edge, A more personalized Taskbar for new users, and more.
More info: Windows Blog
Oct 29 2020