Apple Releases Version 26.5.1 of iOS and macOS with Fixes for Charging Issue on iPhone 17 and iPhone Air, Unexpected Shutdowns on M5 Macs

Apple has today released version 26.5.1 of the iOS and macOS platforms, bringing a fix for an issue with wired charging on iPhone 17 and iPhone Air devices, as well as a fix for an issue that could cause Macs with the M5 chip to unexpectedly shut down when content filtering extensions were in use.

As iOS 26.5.1 and macOS Tahoe 26.5.1 were not distributed to external testers prior to their release, we do not have any information on whether they contain any accessibility fixes for blind, deaf blind, or low vision users at the time of writing. However, as these updates appear to have been released to address a small number of specific issues, we do not expect them to contain any such fixes.

Release Notes

iOS 26.5.1

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.

macOS Tahoe 26.5.1

This update addresses an issue for enterprise users where Macs with an M5 chip could unexpectedly shut down when using certain content filtering network extensions.

How to Update

iOS 26.5.1 is available via Over-the-Air Update (Settings > General > Software Update), via Finder on a Mac with macOS Catalina or later, or via iTunes on a PC or Mac with macOS Mojave or earlier.

Before updating, we strongly recommend making a full and complete backup of your device (either locally or in iCloud, depending on personal preference). This will ensure that, in the unlikely event that something goes wrong during the update process, you will have a current backup on hand in case a device restore becomes necessary. Also, if using OTA update, we recommend plugging your device into a power source for the duration of the download/installation process, so as to prevent the unlikely event of your battery going dead during the update.

To install macOS Tahoe 26.5.1, choose System Settings from the Apple menu, select General in the table, click Software Update in the scroll area, and click the Update Now button to begin the update process. If other updates are available, you can click the Info button to see details about them and select specific updates to install.