✓ This firmware is signed. This means that you can restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.
This update provides enhancements to Siri AI with the ability to retain useful context from previous Siri interactions as well as draw from a wider range of personal context. It also introduces Suggestions in Messages that help you take quick actions in apps like Calendar and Reminders based on context from your conversation. This release includes additional features, bug fixes, and security updates for your Mac.
For information on the security content of Apple software updates, please visit: https://support.apple.com/100100
Some features may not be available in all regions or on all Apple devices. To learn more, visit apple.com/macos/feature-availability.
Usage limits may apply for some Apple Intelligence features, including but not limited to Siri AI, Intelligent Photo Editing Tools, Image Playground and AFM 3 Cloud models in Shortcuts. To learn more, visit apple.com/apple-intelligence
Software updates, like these, add new features and improvements that may affect performance or battery life. To learn more, visit support.apple.com/125039
| Version | Released | File Size |
|---|---|---|
|
27.2
26B123 |
October 26, 2026 | 25.60 GB |
|
27.2 RC
26B118 |
October 19, 2026 | 25.60 GB |
|
27.2 beta 4
26B5112a |
October 13, 2026 | 26.71 GB |
|
27.2 beta 3
26B5101f |
October 5, 2026 | 26.55 GB |
|
27.2 beta 2
26B5091g |
September 21, 2026 | 26.54 GB |
|
27.2 beta
26B5086k |
September 16, 2026 | 26.54 GB |
Always back up your devive before installing beta software. You can back up your Mac using iCloud, Time Machine, or another storage device.
Note: Using an IPSW file with Apple Configurator always performs a full restore, erasing all data. There is no option to "update" macOS (preserving data) using an IPSW file directly.