A bug currently prevents updated versions of Sequoia from using the xprotect command tool to update XProtect. This explains it in detail, and recommends how you can update XProtect successfully in macOS Sequoia.
bug
Problems with log extracts taken when daylight saving (summer) time is changed, and how a new version of LogUI can write hieroglyphics to your Mac’s log, in this new version.
Compare log entries when clicking on an item in the Finder, once when it’s selected but not brought into focus, and again when it’s correctly brought into focus. This points to a cause as shown here,
This works around an infuriating bug in SwiftUI that prevents full selection of log entries. Essential when using in macOS 27 Golden Gate.
In previous macOS, clicking on components in a window selects those and makes them the centre of attention, or focus. This has broken in macOS 27, as shown in the Finder and an app.
If you delay upgrading to the new version of macOS until its x.3 or x.4 release, will that spare you from most of the bugs and problems? Explored with data from Sequoia and Tahoe.
Do you ever run XProtect Remediator manually? If so, the latest version doesn’t oblige. You might need to consider a 3rd party malware scanner.
Since macOS Mojave, certain plain text files can never be found by local Spotlight search, because their contents weren’t indexed. This has now been fixed in macOS 27.0. Hurrah!
Some examples of what are often dismissed as ‘cosmetic’ bugs resulting from macOS upgrades, including lasting QuickLook rendering problems, and upside down mirror writing.
Further tests on two volumes with over 90 GB purgeable space. One took almost 30 minuted to become available, the other never got there at all. The log reveals who was responsible.
