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FIRMWARE DETAILS

macOS 27.0

Build: 26A428Sep 14, 2026Delta OTA
Release CandidateStable

View details

Filename
1d569d428748455af344f7485b7df6e0e1dc040c5edea2b0f803864aaefeee65.aea
File size
12.75 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
356d083078da75c71560f00ca31e1e64e4028e62d63109e74b91cfb3ddb5a862
SHA-1
Not reported
Required starting builds
25A8364
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 (1)

Unknown

Signing 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%3B26A428-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 12:56 PM UTC
Record fingerprint: 8305c639c5a60addec74ac2aabc81374