Microsoft is now rolling out Windows 10 build 19030 for devices within the Fast ring of the Windows Insider Program. This is the preview number 45 releasing as part of the 20H1 (Vibranium) development, and it's a little update with several fixes.

Windows 10 build 19030, based on the company, removes the watermark from the lower-right corner signaling the new version is nearly complete, and all sorts of features planned for this release already are integrated.

Also, this flight fixes a sign-in issue when resetting the PIN from the logon screen, night light settings, and memory problem viewing long HECV videos.

Microsoft is listing the entire set of improvements, fixes, and known issues for Windows 10 Insider Preview build 19030 in the Windows Blog.

Download Windows 10 build 19030

However, there are no ISO files for Windows 10 build 19030, the update can be obtained immediately with the Fast ring. This preview build will download and install automatically on your device, but you can invariably force the update from Settings > Update & security > Windows Update, and clicking the Check for updates button.