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“testflight the requested app is not avaliable”

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Regression / Feature Request: Jumbo Frame (MTU 9000) support missing in AppleUserECM for RTL8156 2.5G USB adapters
Hello, I am currently developing a headless macOS daemon (HarmonBridge) that requires extremely low-latency, high-bandwidth UDP video streaming between a Mac and a Linux host over a dedicated 2.5GbE/5GbE local network link. We are utilizing widely available Realtek RTL8156 / RTL8156B based USB 2.5G network adapters. Under macOS, these adapters default to the generic com.apple.DriverKit.AppleUserECM driver. The hardware itself natively supports Jumbo Frames (MTU 9000), but the DriverKit implementation artificially restricts the MTU cap to 1500 bytes. Because we are forced through MTU 1500, we are incurring significant performance penalties: Excessive IP fragmentation for our large UDP video payloads. Unnecessary CPU overhead due to increased hardware interrupts and header processing at 2.5Gbps speeds. For a latency-critical application like ours, reducing CPU interrupts and utilizing true hardware-level Jumbo Frames is essential. My Questions: Is there an undocumented boot-arg or network sysctl parame
Topic: App & System Services SubTopic: Networking Tags:
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106
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Reply to Window size of iOS app running on Mac
You can set a min and max size in the UISceneDelegate method scene(_:willConnectTo:options:) by accessing the sizeRestrictions property of the UIWindowScene. Here's an example: func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { guard let winScene = scene as? UIWindowScene else { return } if let sizes = winScene.sizeRestrictions { sizes.minimumSize = .init(width: 640, height: 480) // No smaller than 640x480 sizes.maximumSize = .init(width: .max, height: .max) // As big as the user wants } }
Topic: UI Frameworks SubTopic: UIKit Tags:
2d
Reply to iOS 12.5.8 fails to bootstrap app
Addendum: I’ve created a simple minimal UIKit app that produces the same bootstrap error on the iPhone 5s with iOS 12.5.8. Launch storyboard shows, then suddenly disappears. The project is configured for automatically managed signing. My provisioning team profile expires in 11 months, my dev certificate in Oct 2026, and all other items in the details have checkmarks.
Topic: App & System Services SubTopic: General Tags:
2d
Reply to XCode 16 and iOS 12 support
I’ve managed to run the Xcode 26.4 debugger with an app on an old iPhone 5s running 12.5.8 (though it failed for a different reason). The trick was to install a developer disk image for iOS 12.4. Since Xcode does not grab it from the old iPhone I found it on GitHub where someone collected these old images. You need to copy the dmg and signature to /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport . Good luck.
Topic: App Store Distribution & Marketing SubTopic: General
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iOS 12.5.8 fails to bootstrap app
Hello, I released a new build for my app but it fails to run on iOS 12.5.8 (tested on iPad Air, iPhone 6, iPhone 5s). The launch storybard is shown, then the app stops abruptly. There is no crash log. It runs fine on iOS 13 or higher. Xcode 26.3 was showing a call stack (something with UIView) that did not include any app code. Now with Xcode 26.4 (and its new command line tools) there is an info popup with a debug metadata dump. However, I don’t intend to focus on Xcode here because it officially does not support iOS 12. It’s ok if I cannot debug, I just want the app to run on the device like the previous build did. Since there is no crash log, and the console is showing a bootstrap error, I believe my app code has not been executed and is therefore not at fault. Build 674 released on 23-Mar-2026: worked fine on iOS 12, built with Xcode 26.3 Build 675 released on 29-Mar-2026: Bootstrap error as describ
Topic: App & System Services SubTopic: General Tags:
5
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249
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Availability for BLE background scanning on watchOS whilst dimmed
I am trying to find out about the availability of BLE scanning for advertisements when a watchOS app (on watchOS 26.4 with CoreBluetooth) which starts running a HKWorkoutSession becomes dimmed, ie. due to the user lowering their arm. From my understanding there is still availability for ongoing scanning whilst in the dimmed mode. If this is correct, what settings are required (e.g. using background capability for 'Workout Processing', 'bluetooth-central', etc), and does scanning whilst in background mode limit to requiring service uuids in scanForPeripherals? Also if scanning is throttled, is there an 'estimated' inter scan time? Thanks
Topic: App & System Services SubTopic: Core OS Tags:
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110
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Reply to Entitlement values for the Enhanced Security and the Additional Runtime Platform Restrictions
It seems to be the same problem where the App Review automated system hasn't been updated to accept the new entitlements even though Xcode 26.4 has been out for more than a week now. I've raised FB22387339 for this. It actually was fixed, but then a different change reintroduced the same failure (r.173858947). It may take a day or two, but this should be sorted out soon. __ Kevin Elliott DTS Engineer, CoreOS/Hardware
Topic: Privacy & Security SubTopic: General Tags:
2d
Reply to Tahoe 26.4 breaks custom paths with NetFSMountURLSync?
Removing this option now works for mounting but kind of defeats the purpose of calling NetFSMountURLSync since it now shows 3 dialogs (even after the initial approval, and storing the credentials in the keychain - it now always asks all 3 questions): Yes. To be clear, I was simply pointing out how kNAUIOptionKey was involved with this, not suggesting removing it was a fully acceptable alternative. Note: I did report this unexpected behavior in Feedback Assistant (not sure if that would even be the correct place to do this). Yes, that's the right place. What was the feedback number? Just being curious, what do you mean with Any location inside an app’s own container“? First, just so this is clear, mounting in your app's container doesn't work today (macOS 26.4), but is something that should work once we've corrected the current bug. In any case, every sandboxed app has its own private directory hierarchy which it can freely store files inside. In API terms, it's the
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Anyone waiting long for Apple Developer approval?
Hi, I'm also waiting for 5 days. No replies to emails that I've sent to support. Also, for my country I don't have call option on support page. Did you got access? What was the issue? How long does it took?
Topic: Developer Tools & Services SubTopic: Apple Developer Program
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Regression / Feature Request: Jumbo Frame (MTU 9000) support missing in AppleUserECM for RTL8156 2.5G USB adapters
Hello, I am currently developing a headless macOS daemon (HarmonBridge) that requires extremely low-latency, high-bandwidth UDP video streaming between a Mac and a Linux host over a dedicated 2.5GbE/5GbE local network link. We are utilizing widely available Realtek RTL8156 / RTL8156B based USB 2.5G network adapters. Under macOS, these adapters default to the generic com.apple.DriverKit.AppleUserECM driver. The hardware itself natively supports Jumbo Frames (MTU 9000), but the DriverKit implementation artificially restricts the MTU cap to 1500 bytes. Because we are forced through MTU 1500, we are incurring significant performance penalties: Excessive IP fragmentation for our large UDP video payloads. Unnecessary CPU overhead due to increased hardware interrupts and header processing at 2.5Gbps speeds. For a latency-critical application like ours, reducing CPU interrupts and utilizing true hardware-level Jumbo Frames is essential. My Questions: Is there an undocumented boot-arg or network sysctl parame
Topic: App & System Services SubTopic: Networking Tags:
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3
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0
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106
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2d
Xcode Cloud 与你的源代码控制提供商之间的连接未完成。
我在xcode cloud授权github的时候, 提示: Xcode Cloud 与你的源代码控制提供商之间的连接未完成。但是github里查看app是安装好了
Topic: Developer Tools & Services SubTopic: Xcode Cloud
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36
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Individual to Organization Developer Account
Hello, I submitted a request to update my individual developer account to organization over 2 weeks ago and still have not received any response. Any advice on how to expedite this process?
Topic: Developer Tools & Services SubTopic: Apple Developer Program Tags:
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101
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Reply to Entitlement values for the Enhanced Security and the Additional Runtime Platform Restrictions
@z0rk Hmm, I’ve already submitted a new version of my app with the new entitlement to the Mac App Store and it was accepted.
Topic: Privacy & Security SubTopic: General Tags:
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Reply to Window size of iOS app running on Mac
You can set a min and max size in the UISceneDelegate method scene(_:willConnectTo:options:) by accessing the sizeRestrictions property of the UIWindowScene. Here's an example: func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { guard let winScene = scene as? UIWindowScene else { return } if let sizes = winScene.sizeRestrictions { sizes.minimumSize = .init(width: 640, height: 480) // No smaller than 640x480 sizes.maximumSize = .init(width: .max, height: .max) // As big as the user wants } }
Topic: UI Frameworks SubTopic: UIKit Tags:
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2d
Reply to iOS 12.5.8 fails to bootstrap app
Addendum: I’ve created a simple minimal UIKit app that produces the same bootstrap error on the iPhone 5s with iOS 12.5.8. Launch storyboard shows, then suddenly disappears. The project is configured for automatically managed signing. My provisioning team profile expires in 11 months, my dev certificate in Oct 2026, and all other items in the details have checkmarks.
Topic: App & System Services SubTopic: General Tags:
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2d
Reply to TESTFLIGHT: The requested app is not available or doesn t exist
I don't see that anyone has posted a resolution to this issue. I've had the problem for a week. I have a support ticket from last week that's gone unanswered. It kind of makes it hard to put out good quality product if you can't get your app into the hands of testers.
Topic: App Store Distribution & Marketing SubTopic: TestFlight Tags:
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Reply to Core Spotlight Semantic Search - still non-functional for 1+ year after WWDC24?
Found it guys… First, the pattern is reversed: disableSemanticSearch = True (default) is semantic search ON… Second finding… despite prepare() it doesn't ensure that you don't get the error. Adding a dummy first request gets the error, and the following requests work (with correct results)
Topic: Machine Learning & AI SubTopic: Apple Intelligence Tags:
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Reply to Getting a basic URL Filter to work
I cannot even get the sample project to work: https://developer.apple.com/documentation/networkextension/setting-up-a-pir-server-for-url-filtering @KayleeSC any words of advice you can share (gotchas)?
Topic: App & System Services SubTopic: Networking Tags:
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Reply to XCode 16 and iOS 12 support
I’ve managed to run the Xcode 26.4 debugger with an app on an old iPhone 5s running 12.5.8 (though it failed for a different reason). The trick was to install a developer disk image for iOS 12.4. Since Xcode does not grab it from the old iPhone I found it on GitHub where someone collected these old images. You need to copy the dmg and signature to /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport . Good luck.
Topic: App Store Distribution & Marketing SubTopic: General
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Views
Activity
2d
iOS 12.5.8 fails to bootstrap app
Hello, I released a new build for my app but it fails to run on iOS 12.5.8 (tested on iPad Air, iPhone 6, iPhone 5s). The launch storybard is shown, then the app stops abruptly. There is no crash log. It runs fine on iOS 13 or higher. Xcode 26.3 was showing a call stack (something with UIView) that did not include any app code. Now with Xcode 26.4 (and its new command line tools) there is an info popup with a debug metadata dump. However, I don’t intend to focus on Xcode here because it officially does not support iOS 12. It’s ok if I cannot debug, I just want the app to run on the device like the previous build did. Since there is no crash log, and the console is showing a bootstrap error, I believe my app code has not been executed and is therefore not at fault. Build 674 released on 23-Mar-2026: worked fine on iOS 12, built with Xcode 26.3 Build 675 released on 29-Mar-2026: Bootstrap error as describ
Topic: App & System Services SubTopic: General Tags:
Replies
5
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0
Views
249
Activity
2d
Availability for BLE background scanning on watchOS whilst dimmed
I am trying to find out about the availability of BLE scanning for advertisements when a watchOS app (on watchOS 26.4 with CoreBluetooth) which starts running a HKWorkoutSession becomes dimmed, ie. due to the user lowering their arm. From my understanding there is still availability for ongoing scanning whilst in the dimmed mode. If this is correct, what settings are required (e.g. using background capability for 'Workout Processing', 'bluetooth-central', etc), and does scanning whilst in background mode limit to requiring service uuids in scanForPeripherals? Also if scanning is throttled, is there an 'estimated' inter scan time? Thanks
Topic: App & System Services SubTopic: Core OS Tags:
Replies
1
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0
Views
110
Activity
2d
Reply to Entitlement values for the Enhanced Security and the Additional Runtime Platform Restrictions
It seems to be the same problem where the App Review automated system hasn't been updated to accept the new entitlements even though Xcode 26.4 has been out for more than a week now. I've raised FB22387339 for this. It actually was fixed, but then a different change reintroduced the same failure (r.173858947). It may take a day or two, but this should be sorted out soon. __ Kevin Elliott DTS Engineer, CoreOS/Hardware
Topic: Privacy & Security SubTopic: General Tags:
Replies
Boosts
Views
Activity
2d
Reply to Tahoe 26.4 breaks custom paths with NetFSMountURLSync?
Removing this option now works for mounting but kind of defeats the purpose of calling NetFSMountURLSync since it now shows 3 dialogs (even after the initial approval, and storing the credentials in the keychain - it now always asks all 3 questions): Yes. To be clear, I was simply pointing out how kNAUIOptionKey was involved with this, not suggesting removing it was a fully acceptable alternative. Note: I did report this unexpected behavior in Feedback Assistant (not sure if that would even be the correct place to do this). Yes, that's the right place. What was the feedback number? Just being curious, what do you mean with Any location inside an app’s own container“? First, just so this is clear, mounting in your app's container doesn't work today (macOS 26.4), but is something that should work once we've corrected the current bug. In any case, every sandboxed app has its own private directory hierarchy which it can freely store files inside. In API terms, it's the
Topic: App & System Services SubTopic: Core OS Tags:
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Activity
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