Microsoft has tweaked the Shutdown dialog box as well as the WinRE Recovery interface with the new WinUI design elements and added new icons which update these elements and ensure consistency.
Beta Channel build gets Taskbar, File Explorer improvements, ISOs available
windows 11 insider preview
Build 25115 RSS
As was warned by Microsoft for the better part of the last couple of months, the Beta and Dev Channels finally split off into their own builds. Say hello to Sun Valley 3, the Windows 11 for 2023.