I agree. It needs to be fixed sooner than later. My response is a bit fueled with frustration with Apple at the moment. :)

It's a shame the developer forum doesn't put a big banner at the top of the screen for posting a new message about how this is not the place to post bug reports and to use Feedback Assistant, blah blah blah.

I have a macOS 15.0.1 VM and I did not need to take the steps I described. It "just worked". In fact, the Settings app in the macOS 15 VM doesn't show a Mouse or Trackpad entry. Simply configuring the Virtualized Pointer to "Mac Trackpad (macOS 13+)" allows it to work in the VM just as it does on the host. But the macOS 26 VM requires the extra steps for some reason. I don't know if it's a macOS 26 issue or UTM needs an update to support macOS 26 a bit better.

FYI - UIDesignRequiresCompatibility does not appear in the documentation included with Xcode 26.

Will the Xcode documentation be fixed in the next Xcode update? Should a bug report be filed in the Feedback app or is there no point since you know about the issue? Thanks.

Any update on this issue? I've just discovered that my Mac Catalyst app is having the same issue ever since I updated my Mac to macOS 15.1.

I actually submitted a bug report yesterday with a sample app. It's FB15458347. Thanks.

This is related to the post at https://developer.apple.com/forums/thread/749614

Sorry, just saw your reply. This is great! This ended up being so simple - for iOS 17. Unfortunately I need to support iOS 15+ and UITextSelectionDisplayInteraction is only for iOS 17+. I've spent the last several hours trying to find a solution for iOS 16. Why is this so hard? Thanks so much at least for the iOS 17 solution. I'll keep digging for iOS 15/16. I'll post a full solution when I come up with one.

Sorry but I am just now seeing your reply. How do the various macOS apps respond to the setting change? BTW - In my specific case, I'm using Mac Catalyst to port an iOS app to macOS. Ideally the change in setting in macOS would have the same effect as it does under iOS - the trait collection would be updated with the new size category leading to things automatically updating their size as appropriate.

I’ve made attempts to generate touch events or directly call target/action pairs of the gestures provided by UITextInteraction but so far no luck. Too many private APIs involved for me to find a working hack along those lines.

Any thoughts on my reply?

I'd rather have a definitive answer than rely on anecdotal evidence from 1 user.

FYI - AVFoundation is now supported under Mac Catalyst.

This is no longer true. See my recent post below. AVFoundation and the AVCam demo are now supported under Mac Catalyst.