Microsoft has released Windows 10 Insider Preview Build 19041.264 to Windows insiders in the slow and release preview ring.

Releasing Windows 10 Insider Preview Build 19041.264 to the Slow & Release Preview rings

Hello Windows Insiders, today we’re releasing 20H1 Build 19041.264 (KB4556803) to Windows Insiders in the Slow and Release Preview rings. This Cumulative Update includes quality improvements. Key changes include:

We have fixed a performance issue in Windows Mixed Reality (WMR) that prevents it from working correctly for many users.

We fixed an issue that prevents cleaning tools, such as Disk Cleanup, from removing previously installed updates.

We have updated the 2020 start date for daylight saving time (DST) in the Kingdom of Morocco. For more information, see KB4557900.

Security updates to Internet Explorer, the Microsoft Scripting Engine, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Input and Composition, Windows Media, Windows Shell, Microsoft Xbox, Microsoft Edge, Windows Fundamentals, Windows Cryptography, Windows Authentication, Windows Kernel, Windows Virtualization, Windows Update Stack, Windows Core Networking, Internet Information Services, Windows Network Security and Containers, Windows Active Directory, Windows Server, and the Microsoft JET Database Engine.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

Releasing Windows 10 Insider Preview Build 19041.264 to the Slow & Release Preview rings