https://wccftech.com/windows-10-2020-preview-18850/

Microsoft has started releasing another Insider Preview build from the 20H1 branch due for a release in early 2020. Windows 10 20H1 Preview Build 18850 is available to Insiders who opted in to the Skip Ahead ring.

As a reminder, Microsoft is currently also working on Windows 10 1903 Preview builds, which will be released in April this year. After that, the Windows maker has to release another Windows 10 version by the end of this year before actually releasing Windows 10 2020. However, the company said that some things in Windows 10 2020 require “require a longer lead time.”