Microsoft today pushed Windows 10 Mobile Build 15254.538 (10.0.15254.538) as the cumulative update KB4464853 to those on Fall Creators update aka Windows 10 Mobile Version 1709. The changelog for the Build 15254.538 mentions only fixes and security updates. Read the full changelog below.
You can check the update availability by going to Settings–>Update & Security–>Windows update–>Check for updates.
Windows 10 mobile Build 15254.538 Changelog:
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 KB4462937.
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.
 KB4462937 Fixes & improvements:
This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
- Security updates to Internet Explorer, Windows Media Player, Microsoft Graphics Component, Microsoft Edge, Windows Kernel, Windows Storage and Filesystems, and Microsoft Scripting Engine.
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, please refer to the Security Update Guide.
