Microsoft have released a cumulative update to the build 18362 of Windows 10 (19H1). The update takes the May 2019 Update to build 18362.53 with KB4495666 and includes security patches, with one known issues:
We have released Build 18362.53 (KB4495666) for Windows Insiders who are currently on Build 18362.30 of the Windows 10 May 2019 Update. This update also includes security updates that come as part of the normal monthly Patch Tuesday release cycle.
This update does include a known issue:
After installing this update (KB4495666), users may experience error “0x800705b4” when launching Windows Defender Application Guard or Windows Sandbox. As a workaround, you can enable the following registry keys on the Host OS and reboot:
The Windows 10 May 2019 update has hit the Release Preview ring and is due to rollout next month.