Microsoft has released a new build for the Fast ring of Windows 10, build 19577. Make sure to check out the known issues before updating.

Known issues

BattlEye and Microsoft have found incompatibility issues due to changes in the operating system between some Insider Preview builds and certain versions of BattlEye anti-cheat software. To safeguard Insiders who might have these versions installed on their PC, we have applied a compatibility hold on these devices from being offered affected builds of Windows Insider Preview. See this article for details.
We are aware Narrator and NVDA users that seek the latest release of Microsoft Edge based on Chromium may experience some difficulty when navigating and reading certain web content. Narrator, NVDA and the Edge teams are aware of these issues. Users of legacy Microsoft Edge will not be affected. NVAccess has released a NVDA 2019.3 that resolves the known issue with Edge.
We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
We’re investigating reports that some Insiders are unable to update to newer builds with error 0x8007042b.
The Documents section under Privacy has a broken icon (just a rectangle).
When you upgrade with certain languages, like Japanese, the “Installing Windows X%” page isn’t rendering the text correctly (only boxes are displayed).
The cloud recovery option for Reset this PC isn’t working on this build. Please use the local reinstall option when performing Reset this PC.
When trying to use Win + PrtScn to capture a screenshot, the image is not saved to the Screenshots directory. For now, you’ll need to use one of the other options for taking screenshots, such as WIN + Shift + S.
We’re looking into reports where, when running corruption repair (DISM), the process will stop at 84.9%.
Notifications sometimes have the wrong actions associated with them (for example, a reply box or various buttons).