The sandboxing has so many issues... poorly thought out imo. Similarly, if you try to support IOS before 17, and try to use the rename delegate, it won't work, because you don't have permission to the directory containing the file.

That's an understandable position. Thank you.

Hmm, that's unfortunate - at a minimum you would think the list of things that are expected to be broken would be documented. Thank you for taking the time to respond.

I encounter the same issue even when clicking on my source document in the Files app. It always seems to create a new scene even when a scene for that file is already open, with no way to prevent it

I filed FB22571981

I can't really run the beta, because I need to build for production. Did you verify that it occurs under the latest XCode production release?

Thanks, but I am a bit confused. Your screenshot is of an iOS app, not a MacOS one.

It is still broken running a SwiftUI app on OSX 15.7.2 developed using XCode 26.1

Thank you Ziqiao. One note for others, the open menu item cannot have a target set, like NSDocumentController.shared, or it won't work. Trying to set this up in applicationDidFinishLaunching was also incorrect.

I was able to solve this by overriding NSDocument override func updateChangeCount(_ change: NSDocument.ChangeType) { if change.rawValue & NSDocument.ChangeType.changeDiscardable.rawValue != 0 { return } super.updateChangeCount(change) }

If I manually create the Open Recent menu and add the item for the 'Clear Menu' it properly reflects the state of the list (which isn't appearing). If I clear it, the 'Clear Menu' button becomes disabled automatically - so the NSDocumentController is correctly finding the menu items, but it isn't populating the list.

I have a done a bit more diagnosis. The "Insert failed..." error in the previous message is caused when it tries to add a recent document that is mirrored in iCloud. If I use a file from a directory not mapped to iCloud I do not get the error, and the file appears in the dock's recent items. I still cannot get the File "Open Recent" menu to populate. I am using XCode 16.2 on OSX 15.3.2

Interestingly, the recently opened documents are appearing in the dock icon when I right-click (automatically) - and I can successfully open them from there, so I am baffled why the Open Recent menu is not working. edit: I notice though that the recent documents in the dock icon do not update - when I open a document and close it. I see the following error in the console: Insert failed for list identifier com.apple.LSSharedFileList.RecentDocuments Error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" (Restricted by sandbox) UserInfo={NSDebugDescription=Restricted by sandbox} but I don't see any sandbox entitlements that control this.

I needed to move to an NSDocument based solution to make all of this work.

a SwiftUI FileDocument doesn't expose the 'isBrowsingVersions' so the previous answer was the best I could manage. I had too many problems with SwiftUI DoucmentGroup that I needed to move to using a NSDocument based system.