Apple iOS 26.5.1 and macOS 26.5.1 Update Rolls Out: Bug Fixes for Charging and Shutdown Issues Resolved

Apple has released iOS 26.5.1 and macOS 26.5.1 as small maintenance updates. The focus is on fixing narrow but important bugs. One affects wired charging on specific iPhone models. Another involves unexpected shutdowns on Macs with the M5 chip.

The iOS 26.5.1 update targets a charging issue on the iPhone Air and iPhone 17. According to Apple’s changelog, wired charging could fail when the battery was almost empty. Apple reports that only a very small number of users experienced this behaviour.

Apple iOS 26.5.1 and macOS 26.5.1 Update Detailed

This charging problem appears at the worst moment for affected users. When the battery is nearly drained, reliable charging is crucial. The update aims to ensure cables work normally again in that scenario. The fix should reduce the risk of users being left without power unexpectedly.

On macOS 26.5.1, the main fix is aimed at enterprise environments. Macs using the M5 chip could shut down without warning. This happened when organisations used "certain content filtering network extensions". The new release is designed to stabilise systems using those tools.

Apple is also preparing the next major software cycle. On June 8, Apple will present iOS 27 and macOS 27. The company is expected to roll out those larger upgrades in the autumn, most likely during September, following its usual release pattern.