https://wccftech.com/new-windows-10-20h1-preview-build-arrives-for-the-fast-ring/

Microsoft has released a new build from Windows 10 20H1 branch to Insiders in the Fast ring today. Windows 10 Insider Preview Build 19028 (20H1) brings a few general fixes and improvements.

As reported earlier, the Windows maker has internally finalized this version of the operating system scheduled for a public release next year. This means that no new features are being tested right now. Microsoft has also closed its Skip Ahead ring and will reportedly deliver these Windows 10 20H1 builds to the Slow ring Insiders next month. As for today's release, here is the changelog of Windows 10 20H1 Insider Preview build 19028.