KB5055526: Daylight Saving Time Update for the Aysen region in Chile to support the government DST

April 8, 2025—KB5055526 (OS Build 20348.3454)

Improvements
This security update includes quality improvements. The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

• [Daylight Saving Time (DST)] Update for the Aysen region in Chile to support the government DST change order in 2025. For more info about DST changes, see the Daylight Saving Time & Time Zone Blog.

​​​​​​​If you installed earlier updates, your device downloads and installs only the new updates contained in this package.

For more info about security vulnerabilities, see the Security Update Guide and April 2025 Security Updates.