https://wccftech.com/windows-10-may-2019-update-rtm-build-18362-30-out-for-slow-and-fast-rings/

After confirming the official name of the upcoming Windows 10 version, Microsoft has now started to release a new build from Windows 10 May 2019 Update to Insiders. Both Fast and Slow ring Insiders can download Windows 10 build 18362.30 if they have build 18356.21 running on their machines. Today’s release brings a few fixes to the operating system.

As reported earlier, build 18362 is highly likely to be the RTM build and the cumulative updates are just confirming that theory.