FIRMWARE DETAILS
macOS 27.0.1
Build:
26A434Sep 28, 2026Delta OTAStable
View details
- Filename
aaeb78941ec3c2f4c1d19cd7160ca4fc08a90b325c2cf12e6ed4610c098b6999.aea- File size
- 13.96 GB
- File type
- Delta OTA
- Download host
updates.cdn-apple.com- Link availability
- Not verified
Source reports active
- Last link check
- Not checked
- SHA-256
88557930241ed533e0a1d3ac7d095cb9c9c6dd26f18e3c0d21c6aba8a48bc355- SHA-1
Not reported- Required starting builds
24D2059- Board restrictions
Not reported
OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.
Compatible hardware (4)
Mac Studio (M3 Ultra, 2025)
UnknownMac15,14Mac Studio (M4 Max, 2025)
UnknownMac16,9MacBook Air (13-inch, M4, 2025)
UnknownMac16,12MacBook Air (15-inch, M4, 2025)
UnknownMac16,13Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.
Source provenance
AppleDBhttps://api.appledb.dev/ios/macOS%3B26A434.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 10:56 PM UTC
Record fingerprint: 5d74a3439f2c9981faa635c8bbd9b8e8