From bleepingcomputer.co
Following the launch of May 2020 Update (version 2004) in May, Microsoft is now preparing the next version of Windows 10 called “version 20H2”. This update is currently available for beta testing with Windows Insiders and is already live in the Beta Channel of the program.
It does not bring a major overall to Windows 10, but there are still a few important changes coming in the Windows 10 version 20H2, including the new theme-aware Start Menu.