macOS 26.0 Tahoe Incompatible with Mac Studio M3 Ultra Due to Neural Engine Driver Error
By
lawgimenez
Needed another two minutes in the oven. A half-baked bagel.
Summary
Apple's macOS 26.0 Tahoe build 25A354 is incompatible with Mac Studio M3 Ultra devices, causing failed upgrades that abort towards the end of installation and revert back to macOS 15.7. The issue appears to stem from an error in the neural engine driver, as confirmed by multiple user reports including one from Ken who attempted the upgrade from 15.7 to 26.0. Users must wait for Apple to release a new build that properly supports the M3 Ultra hardware.
Key quotes
· 3 pulledIf you have a Mac Studio M3 Ultra and want to upgrade it to run macOS 26.0 Tahoe, then I'm afraid you're going to have wait for Apple to build a new release that will install on your Mac.
The upgrade goes well until towards the end, then aborts and the Mac is restarted back into 15.7.
The problem seems to originate from an error in its neural engine driver.
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