UPDATE 4/26: We have released Build 18362.86 (KB4497093) for Windows Insiders who are currently on the Windows 10 May 2019 Update. This Cumulative Update includes the following fixes:
This Cumulative Update includes the fix for Windows Insiders in the Fast ring who were unable to update to the latest 20H1 build from Build 18362.53.
We have made general improvements for users in Japan or use the OS in Japanese including fixes for the Japanese IME and fixes for date and time issues.
We fixed an issue where UWP VPN plugin apps might not be able to properly send packets through an established VPN tunnel on an IPv6 only network.
We fixed the issue causing updating to Build 18362 to fail to install with an 0x80242016 error.
https://blogs.windows.com/windowsexperience/2019/03/20/announcing-windows-10-insider-preview-build-18362/

1903も新元号対応