OS Build 15254.489
Improvements and fixes
This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
This build includes all the improvements from KB4284874.
Addresses a mobile-only issue in which Enterprise files could be saved as Personal files although the Windows Information Protection policy is enabled on the device.
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.
For more information about the resolved security vulnerabilities, see the Security Update Guide.
Known issues in this update
Microsoft is not currently aware of any issues with this update.
How to get this update
This update will be downloaded and installed automatically from Windows Update.