Windows Central published an overview of the changes in Windows 10 version 20H2.

Windows 10 version 20H2: All the changes so far

Microsoft is hard at work on the next version of Windows 10, known as version 20H2 and launching later this year with new changes and enhancements. While this next version is in development, we're going to congregate all of the changes and new features added to Windows 10 version 20H2 through the Windows Insider Program here into one convenient list.

Windows 10 version 20H2: All the changes so far