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FIRMWARE DETAILS

macOS 27.0.1

Build: 26A434Sep 28, 2026Delta OTA
Stable

View details

Filename
d2aaf34c9156a0088efdeac7a20bb3feece1effee5f25fc8ff6f14ecebe34ae5.aea
File size
15.84 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
6566e0b606b8fe1e0adb94956f35cc789d14b4372c3cd327e39288b8cfe70d16
SHA-1
Not reported
Required starting builds
22G2321
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 (3)

Unknown
Unknown
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%3B26A434.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 10:56 PM UTC
Record fingerprint: 5d74a3439f2c9981faa635c8bbd9b8e8