Security scoped bookmarks that were created before updating to macOS 14.7.5 cannot be resolved anymore after updating to macOS 14.7.5.
Reproduction:
Sandboxed app on macOS version 14.7.4
Create and store a security scoped bookmark to a user selected folder:
let url: URL = <user selected url from NSOpenPanel>
let data = try url.bookmarkData(options: [.withSecurityScope], includingResourceValuesForKeys: nil, relativeTo: nil)
<persistently store data>
Update to macOS 14.7.5
Resolve the previously stored bookmark:
let data: Data = <restore data from persistent storage>
var stale: Bool = true
let url = try URL(resolvingBookmarkData: data, options: [.withSecurityScope], relativeTo: nil, bookmarkDataIsStale: &stale)
Expected:
The bookmark is resolved correctly and the resulting url can be used to access the folder/file in the sandboxed app after starting access.
Observed:
URL(resolvingBookmarkData:) throws an error:
Error Domain=NSCocoaErrorDomain Code=259 "The file couldn’t be opened because it isn’t in the correct format."
New security scoped bookmarks created on macOS 14.5.7 can be resolved without issue.
The same appears to happen with macOS 13.7.5.
Entitlements:
com.apple.security.app-sandbox
com.apple.security.files.bookmarks.app-scope
com.apple.security.files.user-selected.read-write
This is very disruptive, as it appears that Sandboxed apps cannot access any previously stored bookmarks anymore.
Particularly after the recent ScopedBookmarkAgent issues in 14.7.1 and 15.0, which were resolved in 14.7.3/15.1 respectively: https://developer.apple.com/forums/thread/764435
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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I've been wondering what is the memory limit for network extensions. Specifically, I'm using the NEPacketTunnelProvider extension point.The various posts on this forum mention 5 MB and 6 MB for 32-bit and 64-bit respectively. However I find that (at least on iOS 10) the upper limit seems to be 15 MB. Is this the new memory limit for extensions?
macos 15.4 beta claims to support FSKit. Is there an FSKit sample available?
I don't see anything useful in the published docs.
I have an app that uses NSPersistentCloudKitContainer stored in a shared location via App Groups so my widget can fetch data to display. It works. But if you reset your iPhone and restore it from a backup, an error occurs:
The file "Name.sqlite" couldn't be opened. I suspect this happens because the widget is created before the app's data is restored. Restarting the iPhone is the only way to fix it though, opening the app and reloading timelines does not. Anything I can do to fix that to not require turning it off and on again?
All the threads only contain system calls. The crashed thread only contains a single call to my app's code which is main.swift:13.
What could cause such a crash?
crash.crash
My app is a VoIP softphone for Mac that allows people to make phone calls to a regular phone numbers. The app exists since before Mac App Store. The app declares itself to the system as capable of handling tel: URLs. Until now, people could change the default handler for tel URLs in FaceTime settings (Default for calls).
In macOS Tahoe 26, this doesn't seem to be possible any more. That option is gone from the FaceTime settings.
Is it completely gone or has it been moved somewhere else? If there is no UI control for this any more, is it possible to change it programmatically?
We have a that relies on accurate GPS location but we’ve noticed that every now and then the location ‘jumps’ a few hundred meters to a different location but reports horizonal accuracy less than 10m.
we think the device is picking up a rough location from a local WiFi rather than internal gps sensors.
can we
a) disable WiFi location Updates?
b) identify WiFi location Updates?
thank You
I see this in Tahoe Beta release notes
macOS now supports the Apple Sparse Image Format (ASIF). These space-efficient images can be created with the diskutil image command-line tool or the Disk Utility application and are suitable for various uses, including as a backing store for virtual machines storage via the Virtualization framework. See VZDiskImageStorageDeviceAttachment. (152040832)
I'm developing a macOS app using the Virtualization framework and need to create disk images in the ASIF (Apple Sparse Image Format) to make use of the new feature in Tahoe
Is there an official way to create/resize ASIF images programmatically using Swift? I couldn’t find any public API that supports this directly.
Any guidance or recommendations would be appreciated.
Thanks!
For a long time our app had this creation of a URLRequest:
var urlRequest = URLRequest(url: url, cachePolicy: .reloadIgnoringLocalAndRemoteCacheData, timeoutInterval: timeout)
But since iOS 26 was released we started to get crashes in this call. It is created on a background thread.
Thread 10 Crashed:
0 libsystem_malloc.dylib 0x00000001920e309c _xzm_xzone_malloc_freelist_outlined + 864 (xzone_malloc.c:1869)
1 libswiftCore.dylib 0x0000000184030360 swift::swift_slowAllocTyped(unsigned long, unsigned long, unsigned long long) + 56 (Heap.cpp:110)
2 libswiftCore.dylib 0x0000000184030754 swift_allocObject + 136 (HeapObject.cpp:245)
3 Foundation 0x00000001845dab9c specialized _ArrayBuffer._consumeAndCreateNew(bufferIsUnique:minimumCapacity:growForAppend:) + 120
4 Foundation 0x00000001845daa58 specialized static _SwiftURL._makeCFURL(from:baseURL:) + 2288 (URL_Swift.swift:1192)
5 Foundation 0x00000001845da118 closure #1 in _SwiftURL._nsurl.getter + 112 (URL_Swift.swift:64)
6 Foundation 0x00000001845da160 partial apply for closure #1 in _SwiftURL._nsurl.getter + 20 (<compiler-generated>:0)
7 Foundation 0x00000001845da0a0 closure #1 in _SwiftURL._nsurl.getterpartial apply + 16
8 Foundation 0x00000001845d9a6c protocol witness for _URLProtocol.bridgeToNSURL() in conformance _SwiftURL + 196 (<compiler-generated>:974)
9 Foundation 0x000000018470f31c URLRequest.init(url:cachePolicy:timeoutInterval:) + 92 (URLRequest.swift:44)# Live For Studio
Any idea if this crash is caused by our code or if it is a known problem in iOS 26?
I have attached one of the crash reports from Xcode:
2025-10-08_10-13-45.1128_+0200-8acf1536892bf0576f963e1534419cd29e6e10b8.crash
Original discussion pre iOS 26
Our app uses Auth0 with HTTPS callback, we've found the issue where AASA file is not ready immediately when app is initially launched, which is the exact issue from the above link.
The issue seems mostly fixed on later versions on iOS 18, however, we are seeing some indications of a regression on iOS 26. Here's some measurement over the last week.
| Platform | iOS 18 | iOS 26 |
|---------------|----------|--------|
| Adoption rate | 55% | 45% |
| Issue seen | 1 | 5 |
| Recover? | Yes | No |
This only 1 iOS 18 instance was able to recover after 1 second after the first try, however, all iOS 26 instances were not able to recover in couple tens of seconds and less than 1 minute, the user eventually gave up.
Is there a way to force app to update AASA file?
Are there some iOS setting (like using a VPN) that could potentially downgrade the AASA fetch?
Related Auth0 discussion:
https://community.auth0.com/t/ios-application-not-
recognizing-auth0-associated-domain/134847/27
Hi all,
I am adding the following StoreKit 2 code to my app, and I don't see anything in Apple's documentation that explains the unverified case. When is that case exercised? Is it when someone has tampered with the app receipt? Or is it for more mundane things like poor network connectivity?
// Apple's docstring on `shared` states:
// If your app fails to get an AppTransaction by accessing the shared property, see refresh().
// Source: https://developer.apple.com/documentation/storekit/apptransaction/shared
var appTransaction: VerificationResult<AppTransaction>?
do {
appTransaction = try await AppTransaction.shared
} catch {
appTransaction = try? await AppTransaction.refresh()
}
guard let appTransaction = appTransaction else {
AppLogger.error("Couldn't get the app store transaction")
return false
}
switch appTransaction {
case .unverified(appTransaction, verificationError):
// For what reasons should I expect this branch to be entered in production?
return await inspectAppTransaction(appTransaction, verifiedByApple: false)
case .verified(let appTransaction):
return await inspectAppTransaction(appTransaction, verifiedByApple: true)
}
Thank you,
Lou
I'm currently experimenting with the latest Xcode beta 15.3 (15E5194e) and attempting to integrate FinanceKit](https://developer.apple.com/documentation/financekit) into my project. However, I've encountered a persistent issue where the app crashes upon attempting to read or request authorization, accompanied by the following error message:
FinanceKit/FinanceStore+FinancialDataAuthorization.swift:52: Fatal error: Process is not entitled
Upon investigation, I've found no evident entitlements for FinanceKit, despite exploring options like Apple Wallet. Furthermore, I thoroughly examined the info.plist for relevant privacy values but found nothing pertinent.
Here's the code snippet that triggers the fatal error, whether it's the request or read function:
I don't see anything in entitlements for FinanceKit (I tried Apple Wallet and that didn't make a difference). Additionally, I checked for relevant privacy values for the info.plist but again didn't see anything relevant.
Here is the code to reproduce the error (note calling either function will result in the same fatal error):
import FinanceKit
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
requestFinancePermission()
// readFinancePermission()
}
private func requestFinancePermission() {
Task {
do {
let status = try await FinanceStore.shared.requestAuthorization()
} catch {
print("Error: \(error)")
}
}
}
private func readFinancePermission() {
Task {
do {
let status = try await FinanceStore.shared.authorizationStatus()
} catch {
print("Error: \(error)")
}
}
}
}
I'm seeking clarification on whether FinanceKit is currently usable or if there are additional steps needed for proper integration. Any insights or suggestions would be greatly appreciated. Thank you!
I've gotten to the point where I can use the mount(8) command line tool and the -t option to mount a file system using my FSKit file system extension, in which case I can see a process for my extension launch, probe, and perform the other necessary actions.
However, when plugging in my USB flash drive or trying to mount with diskutil mount, the file system does not mount:
$ diskutil mount disk20s3
Volume on disk20s3 failed to mount
If you think the volume is supported but damaged, try the "readOnly" option
$ diskutil mount readOnly disk20s3
Volume on disk20s3 failed to mount
If you think the volume is supported but damaged, try the "readOnly" option
Initially I thought it would be enough to just implement probeExtension(resource:replyHandler:) and the system would handle the rest, but this doesn't seem to be the case. Even a trivial implementation that always returns .usable doesn't cause the system to use my FSModule, even though I've enabled my extension in System Settings > General > Login Items & Extensions > File System Extensions.
From looking at some of the open source msdos and Disk Arb code, it seems like my app extension needs to list FSMediaTypes to probe. I eventually tried putting this in my Info.plist of the app extension:
<key>FSMediaTypes</key>
<dict>
<key>EBD0A0A2-B9E5-4433-87C0-68B6B72699C7</key>
<dict>
<key>FSMediaProperties</key>
<dict>
<key>Content Hint</key>
<string>EBD0A0A2-B9E5-4433-87C0-68B6B72699C7</string>
<key>Leaf</key>
<true/>
</dict>
</dict>
<key>0FC63DAF-8483-4772-8E79-3D69D8477DE4</key>
<dict>
<key>FSMediaProperties</key>
<dict>
<key>Content Hint</key>
<string>0FC63DAF-8483-4772-8E79-3D69D8477DE4</string>
<key>Leaf</key>
<true/>
</dict>
</dict>
<key>Whole</key>
<dict>
<key>FSMediaProperties</key>
<dict>
<key>Leaf</key>
<true/>
<key>Whole</key>
<true/>
</dict>
</dict>
<key>ext4</key>
<dict>
<key>FSMediaProperties</key>
<dict>
<key>Content Hint</key>
<string>ext4</string>
<key>Leaf</key>
<true/>
</dict>
</dict>
</dict>
</plist>
(For reference, the partition represented by disk20s3 has a Content Hint of 0FC63DAF-8483-4772-8E79-3D69D8477DE4 and Leaf is True which I verified using IORegistryExplorer.app from the Xcode additional tools.)
Looking in Console it does appear now that the system is trying to use my module (ExtendFS_fskit) to probe when I plug in my USB drive, but I never see a process for my extension actually launch when trying to attach to it from Xcode by name (unlike when I use mount(8), where I can do this). However I do see a Can't find the extension for <private> error which I'm not sure is related but does sound like the system can't find the extension for some reason.
The below messages are when filtering for "FSKit":
default 19:14:53.455826-0400 diskarbitrationd probed disk, id = /dev/disk20s3, with ExtendFS_fskit, ongoing.
default 19:14:53.456038-0400 fskitd Incomming connection, entitled 1
default 19:14:53.456064-0400 fskitd [0x7d4172e40] activating connection: mach=false listener=false peer=true name=com.apple.filesystems.fskitd.peer[350].0x7d4172e40
default 19:14:53.456123-0400 fskitd Hello FSClient! entitlement yes
default 19:14:53.455902-0400 diskarbitrationd [0x7461d8dc0] activating connection: mach=true listener=false peer=false name=com.apple.filesystems.fskitd
default 19:14:53.456151-0400 diskarbitrationd Setting remote protocol to all XPC
default 19:14:53.456398-0400 fskitd About to get current agent for 501
default 19:14:53.457185-0400 diskarbitrationd probed disk, id = /dev/disk20s3, with ExtendFS_fskit, failure.
error 19:14:53.456963-0400 fskitd -[fskitdXPCServer applyResource:targetBundle:instanceID:initiatorAuditToken:authorizingAuditToken:isProbe:usingBlock:]: Can't find the extension for <private>
(I only see these messages after plugging my USB drive in. When running diskutil mount, I see no messages in the console when filtering by FSKit, diskarbitrationd, or ExtendFS afterward. It just fails.)
Is there a step I'm missing to get this to work, or would this be an FSKit bug/current limitation?
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
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
I'm unable to view Changes or Diff View in the Deploy Schema Changes Dialog due to an Internal Error.
Could someone please explain how to use a custom sound when setting up an alarm using AlarmKit? It keeps playing a default sound.
Also, I keep having an issue where the alarm sound plays but doesn’t show the alarm interface buttons unless the screen is locked.
Topic:
App & System Services
SubTopic:
General
My App payment encountered a unkonw((StoreKit.StoreKitError) error = unknown) error in iOS18.2, then the lldb log "Could not find a visible window in the scene for xxx purchase."."xxx" is purchase product id.
Why does this error occur, and how can I fix it?
Hello,
I'm trying to adopt the new BGContinuedProcessingTask API, but I'm having a little trouble imagining how the API authors intended it be used. I saw the WWDC talk, but it lacked higher-level details about how to integrate this API, and I can't find a sample project.
I notice that we can list wildcard background task identifiers in our Info.plist files now, and it appears this is to be used with continued tasks - a user might start one video encoding, then while it is ongoing, enqueue another one from the same app, and these tasks would have identifiers such as "MyApp.VideoEncoding.ABCD" and "MyApp.VideoEncoding.EFGH" to distinguish them.
When it comes to implementing this, is the expectation that we:
a) Register a single handler for the wildcard pattern, which then figures out how to fulfil each request from the identifier of the passed-in task instance?
Or
b) Register a unique handler for each instance of the wildcard pattern? Since you can't unregister handlers, any resources captured by the handler would be leaked, so you'd need to make sure you only register immediately before submission - in other words register + submit should always be called as a pair.
Of course, I'd like to design my application to use this API as the authors intended it be used, but I'm just not entirely sure what that is. When I try to register a single handler for a wildcard pattern, the system rejects it at runtime (while allowing registrations for each instance of the pattern, indicating that at least my Info.plist is configured correctly). That points towards option B.
If it is option B, it's potentially worth calling that out in documentation - or even better, perhaps introduce a new call just for BGContinuedProcessingTask instead of the separate register + submit calls?
Thanks for your insight.
K
Aside: Also, it would be really nice if the handler closure would be async. Currently if you need to await on something, you need to launch an unstructured Task, but that causes issues since BGContinuedProcessingTask is not Sendable, so you can't pass it in to that Task to do things like update the title or mark the BGTask as complete.
Hello everyone,
I am migrating a legacy KEXT to a DriverKit (DEXT) architecture. While the DEXT itself is working correctly, I am completely blocked by a code signing issue when trying to establish the UserClient connection from our SwiftUI management app.
Project Goal & Status:
Our DEXT (com.accusys.Acxxx.driver) activates successfully (systemextensionsctl list confirms [activated enabled]).
The core functionality is working (diskutil list shows the corresponding disk device node).
The Core Problem: The userclient-access Signing Error
To allow the app to connect to the DEXT, the com.apple.developer.driverkit.userclient-access entitlement is required in the app's .entitlements file.
However, as soon as this entitlement is added, the build fails.
Both automatic and manual signing fail with the same error:
`Provisioning profile ... doesn't match the entitlements file's value for the ... userclient-access entitlement.`
This build failure prevents the generation of an .app bundle, making it impossible to inspect the final entitlements with codesign.
What We've Confirmed:
The necessary capabilities (like DriverKit Communicates with Drivers) are visible and enabled for our App ID on the developer portal.
The issue persists on a clean system state and on the latest macOS Sequoia 15.7.1.
Our Research and Hypothesis:
We have reviewed the official documentation "Diagnosing issues with entitlements" (TN3125).
According to the documentation, a "doesn't match" error implies a discrepancy between the entitlements file and the provisioning profile.
Given that we have tried both automatic and manual profiles (after enabling the capability online), our hypothesis is that the provisioning profile generation process on Apple's backend is not correctly including the approved userclient-access entitlement into the profile file itself. The build fails because Xcode correctly detects this discrepancy.
Our Questions:
Did we misunderstand a step in the process, or is the issue not with the entitlement request at all? Alternatively, are there any other modifications we can make to successfully connect our App to the DEXT and trigger NewUserClient?
Thank you for any guidance.