After over a year of testing the Windows 10 May 2020 is now publicly available via Windows Update. To get the update you go to Settings, Updates and Security and click on Check for updates. If your system is compatible with the update and you are running 1903/1909 you will get the option to download and install the feature update.
The update will also be available via the Update Assistant.
During the development Microsoft’s internal name for the development was 20H1 and the version number is 2004. The first build of 20H1 were released to Windows Insiders back in February 2019 so it has a longer development phase than previous updates. The reasoning behind this isn’t the update is packed with new features but that Microsoft changed their internal release timing to link in with Azure development.
Here is my video guide and you can read the full details on my Windows 10 May 2020 Update guide.