https://wccftech.com/mega-windows-10-2020-preview-build-brings-a-long-list-of-new-features/

Microsoft has today released Windows 10 Insider Preview Build 18932 (20H1) to Windows Insiders in the Fast ring. The company has now also started to work on the upcoming version of Windows 10 (19H1), however, there won’t be any new features coming with that version as it will entirely focus on improvements and will be delivered as a non-disruptive cumulative update.

The 2020 edition is then expected to be a mega feature upgrade due to release in the spring of next year. If you are excited to try these new features, you can enroll into the Fast ring. However, when “you take this flight, you won’t be able to switch Slow or Release Preview rings without doing a clean-install on your PC,” Microsoft warns.