We tested call blocking on iOS 26 and noticed something strange: the call will not be blocked if an outgoing call was made to its number before. Nevertheless, it will be blocked if we delete the outgoing call record from the Phone.app Recents.
This behavior looks like a bug and is unexpected when using our application. Was this a planned callkit change in iOS 26? Is it possible to get the correct call blocking behavior back?
We set blocking rules with addBlockingEntry(withNextSequentialPhoneNumber:) and this problem is not present in iOS 18 and earlier.
Thank you in advance
Delve into the world of built-in app and system services available to developers. Discuss leveraging these services to enhance your app's functionality and user experience.
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Since WatchOS 8.0.1 CoreBluetooth drops an active connection if the App goes to background (or back to foreground).
This can be reproduced easily with this sample code:
Interacting with Bluetooth Peripherals During Background App Refresh
If you run the app on the Apple Watch and turn your wrist, an active connection is terminated.
In the output window you can read:
2021-10-20 20:22:41.210839+0200 BARBluetooth WatchKit Extension[382:94603] [BluetoothReceiver] disconnected from Sender.
The same is the case with my other Watch Apps, that are connecting to BLE devices.
As far as I remember, with WatchOS 8.0 everything was fine.
Since this occurs even on WWDC21 sample code this must be a bug.
Is there a way to fix it for myself, or do I have to wait until it gets fixed by Apple?
The NSPersistentCloudKitContainer synchronization between core data and
iCloud was working fine with phone 15.1. Connected a new iPhone iOS 15.5, it gives error:
CoreData: debug: CoreData+CloudKit: -[NSCloudKitMirroringDelegate managedObjectContextSaved:](2504): <NSCloudKitMirroringDelegate: 0x28198c000>: Observed context save: <NSPersistentStoreCoordinator: 0x2809c9420> - <NSManagedObjectContext: 0x2819ad520>
2022-12-05 13:32:28.377000-0600 r2nr[340:6373] [error] error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _importFinishedWithResult:importer:](1245): <PFCloudKitImporter: 0x2837dd740>: Import failed with error:
Error Domain=NSCocoaErrorDomain Code=4864 "*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: incomprehensible archive (0x53, 0x6f, 0x6d, 0x65, 0x20, 0x65, 0x78, 0x61)" UserInfo={NSDebugDescription=*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: incomprehensible archive (0x53, 0x6f, 0x6d, 0x65, 0x20, 0x65, 0x78, 0x61)}
CoreData: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _importFinishedWithResult:importer:](1245): <PFCloudKitImporter: 0x2837dd740>: Import failed with error:
Error Domain=NSCocoaErrorDomain Code=4864 "*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: incomprehensible archive (0x53, 0x6f, 0x6d, 0x65, 0x20, 0x65, 0x78, 0x61)" UserInfo={NSDebugDescription=*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: incomprehensible archive (0x53, 0x6f, 0x6d, 0x65, 0x20, 0x65, 0x78, 0x61)}
I go back and try with my old iPhone iOS 15.1, gives same error.
In my app, I am using geofencing to perform an action when the user enter or leaves a specified location. The geofencing (CLMonitor) is active permanently, and should work across multiple app sessions or after the device is restarted. It should also work after the app was minimized or terminated. This worked perfectly with iOS 17 and prior, but with iOS 18, things changed. As soon as iOS 18 dropped, users were informing me that the app does no longer perform the entry/exit action reliably (without me making any changes to the app). Most of the times, events are missed entirely. Sometimes, after the user opens or resumes the app, duplicate events are delivered and/or events with the current time instead of the correct time of entry/exit.
I am making sure that the app has the "Always" location permission before geofencing is enabled
The gefocence radius is between 20 and 500m, but even with the max. radius specified, the geofencing is unreliable
For the same user and geofence, the entry/exit event is delivered occasionally, but not always
I am currently not using CLLocationManager.allowsBackgroundLocationUpdates (even though it's documented as "Apps that receive location updates when running in the background must include the UIBackgroundModes key (with the location value) in their app’s Info.plist file") because it wasn't necessary on iOS 17 and in my tests, using it didn't yield any improvements
In my search for what could have caused this change, I found this WWDC video about location authorization: . It appears that with iOS 18, it is now required to have an active CLServiceSession to ensure that location updates are delivered to my app. Even though the video is long (and I've watched it multiple times), some things are still unclear. For example, the docs state:
If your app actively receives and processes location updates and terminates, it should restart those APIs upon launch in order to continue receiving updates.
Also, in the video it is stated that:
... So your job, ..., is to make sure that your process launch logic knows what features it has been tasked with pursuing, and re-takes session objects...
But on the other hand it's also said that:
you can only start holding one (a CLServiceSession) when your app is in the foreground
and also
... CLMonitor.events won’t yield results when it is not in use, unless a session which was started in the foreground, ....
To summarize my questions, for the geofencing to work as described above:
when exactly do I need to create a CLServiceSession if the app is launched into the backgorund? Immediately in the applicationDidFinishLaunching method, even though the app is still in the background (applicationState is background)? Or later on, when the app is opened again by the user, e.g. in applicationDidBecomeActive (and applicationState is active)?
do I need to specify the background mode capability as noted in the Handling location updates in the background article?
do I need to create a CLBackgroundActivitySession as noted in the Handling location updates in the background article?
does it matter, which of the four initializer methods I am using to create the CLServiceSession (with CLServiceSessionAuthorizationRequirementAlways)?
does it matter if I specify NSLocationRequireExplicitServiceSession in the Info.plist or not when I already do ensure that the app has the "Always" location permission when the feature is being enabled
Does a CLServiceSession last indefinitely and should it only be invalidated once the user disables the feature?
I'm trying to handle the serverRecordChanged return code you get in CKError when you have a conflict and your using the savePolicy of ifServerRecordUnchanged.
According to the CKError.Code.serverRecordChanged documentation, I should be receiving all three records that I need to do a 3-way merge. The problem is that the ancestorRecord (CKRecordChangedErrorAncestorRecordKey can also be used to look it up in the userInfo) doesn't actually contain a record. It only contains the record metadata.
Is there something I need to be doing to get the full ancestorRecord in the CKError?
If not is it possible to query iCloud for the ancestorRecord? Given that iCloud has the change history (as I understand it), then it is theoretically possible. I just don't know how to do it if it is possible.
Are 3-way merges even possible? The design of the serverRecordChanged looks like that is the intent, but I can't see how to do it with the data that CloudKit is providing.
How does SwiftData work with background operations? CoreData had background context that could be used to avoid UI hang for heavy operations.
Is there an equivalent in SwiftData, and if so, do I have to merge changes or does it save directly to persistent store?
Hi! I'm trying to figure out what mechanism request stop sends to the guest to actually request a stop. It doesn't appear that Virtualization.framework implements any ACPI bits relating to power buttons, so unclear how a linux VM would detect that a request has been stopped. I don't see any documentation around what devices are implemented by Virtualization.framework either, in terms of things like realtime clock, etc.
Thanks for any help!
Hi folks,
I would like to ask for clarification regarding Local Network Policy. I found 2 cases where I think the behaviour differs from the documentation.
1. Use case
In a CI environment, we have multiple services (LaunchAgents) which require Local Network Access. We are fine by manually approving the Local Network Permission once (per service), but we also require these services to be able to self-update. Self update results in downloading the a binary with an (obviously) different UUID, which seems to result in re-triggering the Local Network Consent prompt. Strange thing: If I don't click either buttons (Allow of Reject), just restart macOS, it will result in an enabled entry in Privacy & Security > Local Network.
I read a reply somewhere on this forum by an Apple engineer that the approval process is a mix of Bundle ID + UUID + other components, so I would expect a new binary with the same properties (but different UUID) to be already whitelisted.
Is this behaviour intended?
2. Use Case
Given the first issue, I decided to do this in the "right way".
I was happy to read this sentence in the documentation:
If you ship a launchd agent that’s not installed using SMAppService, make macOS aware of the responsible code by setting the AssociatedBundleIdentifiers property in your launchd property list.
I have a properly setup (and code signed) Application, for which I have enabled Local Network permission in Privacy & Security.
I have a standalone LaunchAgent, which runs a long running binary from a user directory. The agent is managed with launchd, and in this sense it is "independent" from the main Application Bundle. I have setup AssociatedBundleIdentifiers in the Agent plist, to associate it with the Application. The TeamIdentifier of the 2 binaries are the same. Based on the documentation, this should be enough for my agent to signal macOS that the responsible code is the Application Bundle (which is already enabled from Local Network POV).
Instead, once the LaunchAgent starts, the Local Network Consent popup appears for the binary. I would expect the Application to be the responsible code, thus no more Consent popup.
Is this behaviour intended?
I need this service to run as user, so I cannot just circumvent the Consent popup by running as a Daemon or Root. Nor I would like to manage the Agent with ServiceManagement. What do you guys think, have I misunderstood the documentation?
When trying to run my document-based iPad app using iPadOS 18 beta and Xcode 16 beta, I get an error like the following after opening a document:
Thread 1: Fatal error: Failed to identify a store that can hold instances of SwiftData._KKMDBackingData<MyProject.MyModel> from [:]
In order to help track down what is going wrong, I downloaded the sample app from WWDC23 session "Build an app with SwiftData" found here: https://developer.apple.com/documentation/swiftui/building-a-document-based-app-using-swiftdata
When I try to run the end-state of that sample code, I get a similar error when running the app on my iPad and creating a new deck:
Thread 1: Fatal error: Failed to identify a store that can hold instances of SwiftData._KKMDBackingData<SwiftDataFlashCardSample.Card> from [:]
Given that the sample project is generating the same error as my own project, is this a problem with SwiftData and document-based apps in general? Or is there a change of approach that I should try?
Hello, I want to echo the DeviceActivityReport "concurrency" problems flagged in https://developer.apple.com/forums/thread/720549, and ask a related question. (Thanks to Kmart and other Apple dev support folks who have been monitoring these forums and responding diligently.)
I would like to display daily and weekly stats in the same view, broken down by specific apps (as in the native Screen Time). However, instantiating multiple DeviceActivityReport objects with different filters and/or different contexts leads to confusion, where the two views will incorrectly and intermittently swap data or duplicate data where it shouldn't (seemingly upon some interval when the extension provides fresh data). There isn't documentation on how to display multiple reports at once. Is the idea that logic for multiple reports should be embedded within the extension itself in the makeConfiguration() function and there should only be a single DeviceActivityReport in the main App, or is this a bug?
Even with a single DeviceActivityReport, I run into inconsistencies where the View provided by the extension takes multiple seconds to load or fails to load altogether. The behavior seems random...I will build the application with the same code multiple times and see different behavior each time.
Finally, a plug for better support in the Simulator for the entire set of Screen Time APIs.
Thanks!
Topic:
App & System Services
SubTopic:
General
Tags:
Family Controls
Device Activity
Screen Time
wwdc2022-110336
Rosetta 2 Deadlock on M4 Pro
January 2026 Blizzard update causes a deadlock in Rosetta 2 on M4 chips. CodeWeavers (the developer of CrossOver) has analyzed the issue and identified it as a Rosetta translation failure, not a CrossOver application-level bug.
Hardware: M4 Pro Mac Book Pro
System: Tahoe 26.2
Impacted Software:
CrossOver 25.1.1
Diablo II: Resurrected
We use call directory extension in one of our applications, we notice that call id is truncated on IOS 18.
Example: "Grady GmbH" instead of "GRADY ARCHIE,
PRICEWATERHOUSECOOPER GMBH"
We notice also if we have calls in the history then the caller id is shown correctly.
Issue only on IOS 18.
Topic:
App & System Services
SubTopic:
General
When I tap on one of the buttons in the ShieldAction extension I want to close the shield and open the parent app instead of the shielded app. Is there any way of doing this using the Screen Time API?
class ShieldActionExtension: ShieldActionDelegate {
override func handle(action: ShieldAction, for application: ApplicationToken, completionHandler: @escaping (ShieldActionResponse) -> Void) {
// Handle the action as needed.
let store = ManagedSettingsStore()
switch action {
case .primaryButtonPressed:
//TODO - open parent app
completionHandler(.defer)
case .secondaryButtonPressed:
//remove shield
store.shield.applications?.remove(application)
completionHandler(.defer)
@unknown default:
fatalError()
}
}
}
Topic:
App & System Services
SubTopic:
General
Tags:
Managed Settings
Family Controls
Device Activity
Screen Time
Hello,
When an iOS app runs on Vision Pro in compatible mode, is there a flag such as isiOSAppOnVision to determine the underlying OS at runtime? Just like the ProcessInfo.isiOSAppOnMac. It will be useful to optimize the app for visionOS.
Already checked but not useful:
#if os(xrOS) does not work in compatible mode since no code is recompiled.
UIDevice.userInterfaceIdiom returns .pad instead of .reality.
Thanks.
I've recently published an app, and while developing it, I could always get consistent entitlements from Transaction.currentEntitlements. But now I see some inconsistent behaviour for a subscribed device in the AppStore version. It looks like sometimes the entitlements do not emit value for the subscriptions.
It usually happens on the first couple tries when the device goes offline, or on the first couple tries when the device goes online. But it also happens randomly at other times as well.
Can there be a problem with Transaction.currentEntitlements when the connectivity was just changed?
Of course my implementation may also be broken. I will give you the details of my implementation below.
I have a SubscriptionManager that is observable (irrelevant parts of the entity is omitted):
final class SubscriptionManager: NSObject, ObservableObject {
private let productIds = ["yearly", "monthly"]
private(set) var purchasedProductIDs = Set<String>()
var hasUnlockedPro: Bool {
return !self.purchasedProductIDs.isEmpty
}
@MainActor
func updatePurchasedProducts() async {
var purchasedProductIDs = Set<String>()
for await result in Transaction.currentEntitlements {
guard case .verified(let transaction) = result else {
continue
}
if transaction.revocationDate == nil {
purchasedProductIDs.insert(transaction.productID)
} else {
purchasedProductIDs.remove(transaction.productID)
}
}
// only update if changed to avoid unnecessary published triggers
if purchasedProductIDs != self.purchasedProductIDs {
self.purchasedProductIDs = purchasedProductIDs
}
}
}
And I call the updatePurchasedProducts() when the app first launches in AppDelegate, before returning true on didFinishLaunchingWithOptions as:
Task(priority: .high) {
await DependencyContainer.shared.subscriptionManager.updatePurchasedProducts()
}
You may be wondering maybe the request is not finished yet and I fail to refresh my UI, but it is not the case. Because later on, every time I do something related to a subscribed content, I check the hasUnlockedPro computed property of the subscription manager, which still returns false, meaning the purchasedProductIDs is empty.
You may also be curious about the dependency container approach, but I ensured by testing multiple times that there is only one instance of the SubscriptionManager at all times in the app.
Which makes me think maybe there is something wrong with Transaction.currentEntitlements
I would appreciate any help regarding this problem, or would like to know if anyone else experienced similar problems.
It looks like Apple has added some new API(s) to SFSpeechRecognition
My app, which is currently listed on App Store does feature speech recognition.
Yet, trying to use it under iOS 18.0 throws errors:
-[SFSpeechRecognitionTask localSpeechRecognitionClient:speechRecordingDidFail:]_block_invoke Ignoring subsequent local speech recording error: Error Domain=kAFAssistantErrorDomain Code=1101 "(null)"
What happens is that after several words are transcribed and displayed, the next sentence results in previous words disappearance.
That's probably what that portion of the error text - "Ignoring subsequent local speech recording error: Error Domain=kAFAssistantErrorDomain Code=1101 "(null)" means.
The problem occurs ONLY when the app is running under iOS 18.0
Even when it's compiled in Xcode 16.0 using iOS 17.5 everything works fine.
Any suggestions?
Hello everyone,
I have been working on a macOS app that utilizes push notifications for the past year. Up until recently, everything was functioning correctly. However, now I'm experiencing issues where push notifications are either not being delivered at all or are experiencing significant delays, sometimes up to 10 minutes. Setting the priority header to 10 hasn't made any difference. I am currently using development push notifications, but the issue persists when switching to the production environment.
I'm curious if anyone else has encountered similar problems. When checking the push console, it frequently reports that the device is offline, even though it's actually online ("discarded as device was offline"). Occasionally, notifications are delivered promptly, but this is becoming increasingly infrequent.
This issue has been consistently reported by our testers, particularly after they updated to macOS Sonoma. Any insights or assistance you can provide would be greatly appreciated.
I'm working on an API client for a REST service that uses a custom token-based authentiation scheme. The app hits a specificed authentication endpoint with a username and password, said endpoint returns a token that's good for X amount of time, and the app passes that token along with every subsequent request. When that token expires, we start over.Most literature out there tells me to manually set the Authorization header on my request, but official Apple documentation discourages this, as that header is meant to be 'owned' by the built-in HTTP loading system. That said, official documentation on the 'correct' way to do this is shockingly lacking, and the standard didReceiveChallenge callbacks seem better suited for non-custom Basic/Digest/etc authentication schemes. One thought I had was registering my own URLProtocol subclass to handle our custom flow. However, while I haven't had a chance to sit down and take a crack at that yet, my understanding from skimming these forums is that it's suffering from some bit-rot right now, so it 'might' (?) not be the best choice. That, and it's also not clear to me whether the rules around the Authorization header change when a custom URLProtocol is in play.So, community (paging eskimo in particular!), what's the correct way for me to go about this?
Hello!
I am experiencing some strange bugs around DeviceActivityEvents:
When creating a DeviceActivityEvent we can assign a threshold and applicationTokens.
The idea is, that after the user has spent said threshold on said apps, eventDidReachThreshold is called.
includesPastActivity is set to false.
On iOS 26 however, it happens (quite reliably after updating to a new beta seed) quite often that eventDidReachThreshold is called immediately (after a couple of seconds) instead of waiting for the threshold to be met.
Is anyone else seeing similar issues on iOS 26?
Only workaround I have found is to ask users to re-grant Screen Time permissions. This only holds for about two weeks though or at most until the next iOS 26 beta update is installed.
Feedback filed under:
FB18061981
FB18927456
Topic:
App & System Services
SubTopic:
General
Tags:
Family Controls
Device Activity
Managed Settings
Screen Time
I've been seeing a high number of BGTaskScheduler related crashes, all of them coming from iOS 18.4. I've encountered this myself once on launch upon installing my app, but haven't been able to reproduce it since, even after doing multiple relaunches and reinstalls. Crash report attached at the bottom of this post.
I am not even able to symbolicate the reports despite having the archive on my MacBook:
Does anyone know if this is an iOS 18.4 bug or am I doing something wrong when scheduling the task? Below is my code for scheduling the background task on the view that appears when my app launches:
.onChange(of: scenePhase) { newPhase in
if newPhase == .active {
#if !os(macOS)
let request = BGAppRefreshTaskRequest(identifier: "notifications")
request.earliestBeginDate = Calendar.current.date(byAdding: .hour, value: 3, to: Date())
do {
try BGTaskScheduler.shared.submit(request)
Logger.notifications.log("Background task scheduled. Earliest begin date: \(request.earliestBeginDate?.description ?? "nil", privacy: .public)")
} catch let error {
// print("Scheduling Error \(error.localizedDescription)")
Logger.notifications.error("Error scheduling background task: \(error.localizedDescription, privacy: .public)")
}
#endif
...
}
2025-02-23_19-53-50.2294_+0000-876d2b8ec083447af883961da90398f00562f781.crash