My app supports English and another language. The English string catalog is empty. Running the app in English in Xcode 15 beta 3, all strings are displayed in capital letters. It seems the behavior when translations are missing. Do we need to translate each English key into the same English translation, or is it a bug?

Has anyone used healthDataAccessRequest successfully in SwiftUI? How does parameter trigger work?

Checking subscription status with the new subscriptionStatusTask on iOS 17 beta 3 works well for me, but the status is empty on watchOS 10 beta 3. Seems the same problem reported elsewhere. Does anyone see this problem too?

In Xcode 15 beta 3 and iOS 17 beta 3, my app with SwiftData keeps generating error: *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<NSManagedObject 0x2811cb390> setValue:forUndefinedKey:]: the entity dataSets is not key value coding-compliant for the key "(null)".' I have a model: @Model final class Station: Sendable { ... var dataSets: [String] } The error seems to occur when saving entities of the model in SwiftData. There is no entity named "dataSets". Only a property in the above model. What's the null key in the error?

Xcode 15 beta 5 removed the batch insert method for ModelContext, as verified in code, and indicated in the online doc, although Xcode documentation still shows it. How can we perform batch insertions?

With the following in an iOS and watch app import Observation @Observable final class DataModel { var common = 0 #if os(iOS) var iProp = 0 #endif } Xcode 15 beta 5 reports error: Cannot find type '_iProp' in scope Is platform specific property forbidden in Observable objects?

I keep getting crashes with the following error in Xcode 15 beta 7: CoreData: debug: PostSaveMaintenance: fileSize 15009192 greater than prune threshold CoreData: annotation: PostSaveMaintenance: wal_checkpoint(TRUNCATE) Is 15M bytes too much data?

For a watch app with a companion iOS app, if the user purchases a subscription in the iOS app, does the subscriptionStatusTask view modifier in the watch app get the subscription info? Is the user considered subscribed in the watch app?

Calling reloadTimelines() on WidgetCenter.shared does not reload the timeline on my Apple Watch with watchOS 10.2 beta 2. Used to work in watchOS 10.1 and before. It does not work in iOS 17.2 beta 2 either. Do others see the same problem?

How to save some data in SwiftData to CloudKit, and others on local device only?

CIFormat static var such as RGBA16 give concurrency warnings: Reference to static property 'RGBA16' is not concurrency-safe because it involves shared mutable state; this is an error in Swift 6 Should all these formats be static let to suppress the warnings (future errors)?

I'm calling the following function in a SwiftUI View modifier in Xcode 16.1: nonisolated function f -> CGFloat { let semaphore = DispatchSemaphore(value: 0) var a: CGFloat = 0 DispatchQueue.main.async { a = ... semaphore.signal() } semaphore.wait() return a } The app freezes, and code in the main queue is never executed.

With respond() methods, the foundation model works well enough. With streamResponse() methods, the responses are very repetitive, verbose, and messy. My app with foundation model uses more than 500 MB memory on an iPad Pro when running from Xcode. Devices supporting Apple Intelligence have at least 8GB memory. Should Apple use a bigger model (using 3 ~ 4 GB memory) for better stream responses?

I get the following dyld error on an iPad Pro with Xcode 26 beta 4: Symbol not found: _$s16FoundationModels20LanguageModelSessionC7prewarm12promptPrefixyAA6PromptVSg_tF Any advice?