Apple iOS 26.4.2 New iPhone Software: Should You Upgrade?

Apple released iOS 26.4.2 soon after the previous update, plus iOS 18.7.8 for devices still on iOS 18.

The update includes a single security fix for iPhone 11 and newer models.

It addresses a privacy issue where deleted notification content could remain accessible on the device.

Updating helps reduce the risk of sensitive data lingering on an iPhone.