FIRMWARE DETAILS
macOS 27.0
Build:
26A428Sep 14, 2026Delta OTARelease CandidateStable
View details
- Filename
4ac829d877896a6e2a5b4910628d4d57dbb2f7bd22b779f653113746e4e2d7da.aea- File size
- 15.97 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
ad4957fb400d3af863a075991b696f1c7b7aff2621f04bdbaffc5cf692c470c0- SHA-1
Not reported- Required starting builds
22E8252- 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)
MacBook Air (15-inch, M2, 2023)
UnknownMac14,15Signing 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