Windows 10 May 2020 Update

Windows 10 May 2020 Update (also known as version 2004 or  "20H1") is an update for Windows 10 which was released on 27 May 2020. This version is notable for having the first Insider Preview builds released before Windows 10 November 2019 Update, which it has replaced.

After its release, Microsoft released a number of new builds to the Dev Channel (formerly the Fast ring) that were not tied to any particular Windows 10 release, while the Beta Channel (formerly the Slow ring) received builds of the Vibranium-based October 2020 and May 2021 updates.