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Callkit call blocking problem
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
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Dynamically changing app icon
I have a Qt desktop app that I was shipping to users as a dmg on macOS. But now I'll need to kind of rebrand the app to different users, that rebranding involves changing the name and the icon of the app I'm not sure how feasible that is on macOS but here's what I'm thinking: First I'll include all apps for all brands inside the app resources, and instead of shipping the app directly, I will ship and installer (either .pkg or a custom made installer app) that will be responsible for downloading the main app and also setting some environmental variables somewhere so that I can choose the icon from the resources based on the env var values. And then either change the app icon and name from the installer itself, or implement something inside the app that makes it change the icon and name on launch (both icon in finder and in dock) but maybe one of those methods (or both) will break the codesign/notarization of the app so I want to avoid that too I'm not sure if someone has done this before or how feasible such scenario is. Is what I'm thinking valid? or is there a whole other way possibly easier than this to go about implementing such feature? The purpose of this is that I don't want to have to create multiple releases for multiple brands when they're all the same application with different icons/names, and also when releasing an update it will be just one update for all brands Thank you in advance and feel free to ask any further questions for clarification
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CallKit speaker problem
I’m developing a VoIP app that uses Linphone and CallKit. Everything works as expected until the user enables the speaker on the native CallKit screen. After that, all subsequent calls start with the speaker already on. Even if I call AVAudioSession.sharedInstance().overrideOutputAudioPort(.none), it gets overridden when the call starts (when Linphone begins playing the ringtone). I tested this behavior in WhatsApp, and it seems to work correctly there.
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CallKit answer screen video button
Hello, currently working on messenger with audio/video calls feature. Have found strange behavior, on some devices after accepting call via Lock Screen video button appears to be disabled. Tested on wwdc Speakerbox sample, same code iPhone 15 Pro (iOS 17.4.1) - video button disabled iPhone 14 (iOS 17.6.1) - video button active Here is my, configuration with supportVideo activated static let providerConfiguration: CXProviderConfiguration = { let configuration = CXProviderConfiguration() configuration.supportsVideo = true configuration.maximumCallGroups = 1 configuration.maximumCallsPerCallGroup = 1 configuration.supportedHandleTypes = [.generic] return configuration }() What can be the reason of this behavior? Thanks
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How to install macOS Tahoe 26 on an external drive
In the past I was always able to install every major macOS version on an external drive so that I can test my apps. But now I'm unable to install macOS Tahoe 26 on an external drive. Actually, as far as I'm aware, there are not even official links to macOS 26 installers, but only instructions on how to update to macOS 26 from an existing macOS installation. So I thought I'd install macOS 15 on a separate drive and then update to macOS 26, but whenever I run the macOS 15 installer, tell it to install on the external drive, and reboot after the setup process completes, my MacBook just boots into my main macOS partition as if nothing happened. 3 months ago I somehow managed to install macOS Tahoe beta 1 on an external drive, I don't remember how (but I don't think it was anything crazy); booting into that beta 1 partition and trying to update doesn't work either, as my MacBook again boots into my main macOS partition. I already asked help about the update problem one month ago here, but nobody replied. Could someone at Apple please provide instructions on how one is supposed to install macOS 26 on an external drive (if possible before it becomes available to the public)? Are we supposed to buy a separate Mac for every macOS version that we want to test our apps on?
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[iOS 26 beta 9] App is moving to Background when user rejected the GSM cellular call.
We have an application WAVE PTT(Push to talk) and Application is in foreground state, When a user receives a cellular call and it is in the "ringing" state and application receives a VoIP APNS(video call) which is reported to CallKit. User rejects the Cellular call from CallKit UI, application Video call is also getting rejected (separate feedback - 19017978) and Here the issue is observed that an Application moved to background(OS26 beta 9). Issue is not observed in iOS 18 and older versions. Frequency : 1 out of 3. Please refer the sysdiagnose logs in below reported feedback ID. Feedback Ticket ID: 20187309 Syslogs Snippet reference: default 2025-09-10 12:30:06.991950 +0530 WAVE PTX 0x10e078100 - ApplicationStateTracker: UISceneDidEnterBackground
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How do I launch the Outlook Mail app from my development app?
I want to start the mail application from the development application, but the mail application made by Apple starts. It doesn't work even if I change the default email application to Outlook. When you delete the Apple Mail app, Outlook starts. I want to automatically attach the generated pdf file to the email, but that doesn't work either. Please tell me how to code.
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iMessage apps do not launch in iOS 26
In iOS 26, on iPad (as least, but maybe phone too, yet to test) if you tap an iMessage (a second time) that should launch an iMessage App, it does not launch app. Has anyone else seen this - it makes many iMessage app unusable. Steps to reproduce Send a message that launches iMessage on tap. Tap message on recipient's device. Observe iMessage App open. Dismiss iMessage Tap message again Observe nothing happens, app is not launched.
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CallKit Call Blocking Not Working
I have also tested this on iOS 26 (Beta 9 and above), and the CallKit call blocking functionality is not working. Numbers that should be blocked still ring through. Caller Identification continues to function as expected, but blocking entries (addBlockingEntry) are ignored.
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Link to app store game that does not yet exist
Hi all, Pretty new here, so please remember when you were trying hard. I am creating an IOS app that will generate a link where you have a room-id and a unique id. This will be sent (normal sms. email, copy/paste values etc) to another user. If the person receiving the link does not have the app installed, I would like it to go to the app store for download, however the app is currently not finished and therefore I can't provide a proper link. How do you deal with that? Thanks in advance
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Example default dialer project
I'm trying to create a dialer app for iOS that will make verified cellular, not voip, calls by registering the calls on my server with an option for passphrase offline verification. This means that I want to build a dialer with a nice UX, so I'm trying to use the new default dialer capability. I've read https://developer.apple.com/documentation/livecommunicationkit/preparing-your-app-to-be-the-default-dialer-app which links to https://developer.apple.com/documentation/livecommunicationkit/startcellularconversationaction for starting a call, but when I try to actually use it in my app it says "Cannot find type 'TelephonyConversationManager' in scope" and similar, despite importing LiveCommunicationKit. Is there a default dialer example app & xcode project I can look at for how this should be set up? As I understood it I should be able to use these from iOS 18.2, and I'm targeting that version in my project. The page for StartCellularConversationAction says Beta 26.0 though, have I misunderstood something? does some flag need to be set in my xcode to be able to use this? I read that all test devices need to be in the EU, that should not be the problem.
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KVO crashes in older OS-Versions not replicable in Sequoia
Greetings, With MacOS 15 Sequoia, Apple updated key-value-observations in such a way, that an unremoved observation by a now deallocated object will no longer cause an exception, when the observed object triggers said observation. While this is fundamentally a positive change, the issue comes with the fact, that this change affects systems based on the version of their operating system and not the version of the operating system of the build system. Many of our customers use old operating system versions and old hardware - meaning they can't easily update. Since we need to use up to date Xcode versions to develop for newer systems, our developers tend to have rather new OS versions. This means, that we are increasingly facing bugs which only happen in customer systems but not in most developer (or QA) systems. Currently, we still can use earlier OS versions with Xcode to fix these bugs, but once the used Xcode versions no longer support MacOS 14 or below this will become a major hurdle. Are there known solutions to this issue? We are currently attempting to swizzle observer adding and removal in order to fix the problem for old systems as well, but this has proven to be quite difficult and unstable. Since any weakly held property in the middle of an observation keypath can cause crashes, one would have to split up observations into multiple subobservations, which is less simple than it sounds, due to custom implementations of addObserver (such as there seems to be in array controller proxies) and collection operators. Thanks for any suggestions!
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iOS 26 can no longer report sms messages using Unwanted Communication Extension
Hi! Sms reporting is no longer available in iOS beta 26 builds. I can set my app as the SMS/Call Reporting Extensions but the report button is missing for sms messages in the messages app. Xcode 26 beta 7 build the app without errors. This is a breaking change. Same extension was previously broken for calls but has been fixed in beta 7 build, as reported here. It is however still missing for sms messages in the messages app (beta 9 build).
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ContactProviderManager Fails with Custom domainIdentifier, Works Only with "defaultDomain"
Has anyone encountered a situation like mine below? I’ve submitted feedback, but it seems like I’ll have to wait for a while. ContactProviderManager Fails with Custom domainIdentifier, Works Only with "defaultDomain" Category: Developer Tools / Frameworks Subcategory: ContactProvider Framework Reproducibility: Always iOS Version: iOS 18.0 (and later) Xcode Version: Xcode 16.0 (or later)  Description: When initializing a ContactProviderManager with a custom ContactProviderDomain using any identifier other than "defaultDomain", the initializer throws a ContactProviderError.domainNotRegistered error. The documentation for ContactProviderDomain (https://developer.apple.com/documentation/contactprovider/contactproviderdomain) does not provide any method to register custom identifiers, making it impossible to use ContactProviderManager with a desired custom identifier. The only successful case is when the identifier is "defaultDomain". print("Error: (error)") // No error, initialization succeeds Steps to Reproduce: Create a Contact Provider Extension in an iOS app targeting iOS 18.0. In host app, Attempt to initialize a ContactProviderManager with a custom ContactProviderDomain identifier: ​import ContactProvider func enableExtensionExample() async {    do {        // The app creates a contact provider manager with custom domain.        let manager =  try ContactProviderManager(domainIdentifier: "com.mycompany.customdomain")               // May prompt the person to enable the custom domain.        try await manager.enable()    } catch {       print("Error: \(error)") // Prints ContactProviderError.domainNotRegistered    } } Try the same with the default identifier: ​import ContactProvider func enableExtensionExample() async {    do {        // The app creates a contact provider manager with a default domain.        let manager =  try ContactProviderManager(domainIdentifier: "defaultDomain")               // May prompt the person to enable the default domain.        try await manager.enable()    } catch {       print("Error: \(error)") // No error, initialization succeeds    } } Build and run the app on a device or simulator running iOS 18.0 or later. Observe that the initializer fails with domainNotRegistered for any identifier other than "defaultDomain". Expected Behavior: The ContactProviderManager should initialize successfully with any valid ContactProviderDomain identifier, provided the domain is properly configured or registered, allowing developers to use custom identifiers for organizing contacts (e.g., for different categories or sources). Actual Behavior: The ContactProviderManager initializer throws ContactProviderError.domainNotRegistered for any ContactProviderDomain identifier other than "defaultDomain". Only the "defaultDomain" identifier succeeds, limiting the ability to use custom domains. Impact: Developers cannot use custom identifiers to categorize or manage contacts in separate domains, restricting the ContactProvider framework’s flexibility. This forces reliance on the "defaultDomain" identifier, which may not suit use cases requiring distinct contact groups (e.g., personal vs. business contacts). Suggested Fix: Provide an API to register custom ContactProviderDomain identifiers, such as a ContactProviderManager.register(domain:) method. Update the ContactProviderDomain and ContactProviderManager documentation to clarify how to use custom identifiers or explicitly state if only "defaultDomain" is supported. If custom identifiers are not intended to be supported, document this limitation clearly to avoid developer confusion. Feedback : FB20104001 (ContactProviderManager Fails with Custom domainIdentifier, Works Only with "defaultDomain")
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3rd-party closed-source XCFramework security
Hey! I am developing a macOS application with the help of an external vendor, who is supplying me with a closed-source XCFramework. In Xcode, when I import their XCFramework bundle, when running the app, or opening a SwiftUI preview, or interacting with the app in any form, I get the familiar dialog: "[SDK name].framework" Not Opened - Apple could not verify "[SDK name].framework" is free from malware that may harm your Mac or compromise privacy. (Regardless, the application can run on my machine.) But indeed, their cross-platform iOS/macOS XCFramework is not notarized at all (using spctl -a -t install), plus the macOS binary embedded is not code signed correctly (using codesign -d). The XCFramework itself is production code signed with a Developer ID certificate, however I believed the above issues to be valid. Now, I asked the vendor to provide a correctly distributed (so code signed and notarized) framework, however they pointed out that "when I embed and sign the product in my app, it will be re-signed anyways". I understand this is true, but I believe this to be an important security boundary. If I were to re-sign under my name a closed source binary - previously unchecked for malware by Apple Notary Service -, I would put myself up for embedding potentially malicious code in my app, which could only be traced back to me - which would in turn mean a security issue would hinder my reputation here. Am I being over-protective here, or is this a valid concern? I have no way to see the source code, so I strongly believe this XCFramework should be notarized correctly. I understand that an in-house XCFramework is fine unnotarized, given that I know its origin, but this seems like a unique case where notarization should be enforced from my side on the vendor.
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iOS26 beta: AppClips are not working properly
Hi, As a company, we have several apps in the AppStore that contain AppClips. With the latest iOS18 it works without any problems. With all iOS26 betas so far, however, there is always the problem “ASDErrorDomain- Error 507” and the AppClip cannot be opened. You can easily test this by scanning the following QR code with the system camera: You only ever get this error instead of the option to open the AppClip. As the iOS26 beta phase is already at an advanced stage, we are naturally concerned as to whether the problem will be solved.
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