macOS 15.3.1
Juli Clover (release notes, no security, no enterprise, no developer, full installer, IPSW):
According to Apple’s release notes, macOS Sequoia 15.3.1 includes important security fixes, and it is recommended for all users.
Important security fixes, but no CVEs.
See also: Mr. Macintosh and Howard Oakley.
Apple continues to enable Apple Intelligence on customers’ devices without permission during critical security updates as experts (and our own experiences) confirm.
I had Apple Intelligence enabled, turned it off, then updated to macOS 15.3.1, and it was enabled again.
Some people who had previously disabled Apple Intelligence in macOS 15.3 and iOS 18.3 saw it re-enabled after updating to macOS 15.3.1 and iOS 18.3.1 today. In fact I personally have two different Apple silicon Macs running macOS Sequoia, and after I updated both Macs to 15.3.1, Apple Intelligence was re-enabled on my MacBook Pro but not on my Mac mini. The difference in behavior appears to depend on whether the Setup Assistant and welcome screen is displayed after the update. On my MacBook Pro, but not my Mac mini, I saw the Setup Assistant.
This is essentially an advertisement for Apple Intelligence, with no option to enable or disable it. After pressing the Continue button, I saw the macOS welcome screen, which required me to press Continue a second time.
I wonder why it’s not consistent between Macs.
In our tests using an M4 Pro Mac mini, iPhone 16 Pro, iPhone 15 Pro, and M4 iPad Pro – all with Apple Intelligence previously disabled in iOS/iPadOS 18.3 and macOS 15.3 – we found that while the iPhones and iPad maintained their disabled status after updating to iOS/iPadOS 18.3.1, the Mac mini automatically re-enabled the feature after updating.
Another macOS Sequoia update (15.3.1) and the whole Message UI framework is still broken in Catalyst apps with no activity on my FB (FB15693837) from Nov. 5. Ugh.
Previously:
