Summary created by Smart Answers AI
In summary:
- Apple released iOS 26.5.1 and macOS 26.5.1 updates to address critical bugs affecting iPhone 17, iPhone Air, and M5 Macs.
- iOS 26.5.1 fixes a wired charging issue on iPhone 17 and iPhone Air models that could impact device functionality.
- Macworld recommends immediate installation as macOS 26.5.1 resolves unexpected shutdown problems on M5 Macs for enterprise users.
With WWDC just a week away, Apple is still working on perfecting iOS 26 and macOS 26. With the beta for 26.6 in testing, Apple has has just released a small point release to target critical bugs in its latest hardware. iOS 26.5.1 fixes a charging bug that impacts only iPhone 17 and iPhone Air, while macOS 26.5.1 addresses a shutdown bug on Macs with M5 processors that primarily impacts enterprise users.
The release notes for iOS 26.5.1 state: “This update addresses an issue for a small number of users that may prevent wired charging on iPhone Air and iPhone 17 models when the battery is nearly drained.” The release notes for macOS 26.5.1 state: “This update addresses an issue for enterprise users where Mac computers with an M5 chip could unexpectedly shut down when using certain content-filtering network extensions.”
If you have a new iPhone or Mac, it’s best to update now, even if you haven’t noticed any issues with these specific bugs. Here’s how:
To update your iPhone to iOS 26.5.1
- Open Settings
- Tap General
- Tap Software Update and follow the on-screen instructions.
To update your Mac to macOS 26.5.1
- Open System Settings
- Click General in the left-hand column
- Click Software Update on the right side, and follow the on-screen instructions.



