Apple launches first lightweight Background Security Updates across macOS, iOS, and iPadOS
Apple has started delivering Background Security Improvements—small, lightweight security patches for Safari/WebKit and other system libraries—across macOS, iOS, and iPadOS. These updates run in the background and require a device restart to complete, with the inaugural patch targeting WebKit on devices running iOS 26.1, iPadOS 26.1, and macOS 26.1. Apple says these patches install faster than full software updates.