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“Visual Studio Maui IOS”

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SecureTransport PSK Support for TLS
We have successfully deployed our Qt C++ application on Windows and Android using OpenSSL with TLS Pre-Shared Key (PSK) authentication to connect to our servers. However, I understand that apps submitted to the App Store must use SecureTransport as the TLS backend on iOS. My understandiunig is that SecureTransport does not support PSK ciphersuites, which is critical for our security architecture. Questions: Does SecureTransport support TLS PSK authentication, or are there plans to add this feature? If PSK is not supported, what is Apple's recommended alternative for applications that require PSK-based authentication? Is there an approved exception process that would allow me to use OpenSSL for TLS connections on iOS while still complying with App Store guidelines? The application requires PSK for secure communication with our infrastructure, and we need guidance on how to maintain feature parity across all platforms while meeting App Store requirements
Topic: Privacy & Security SubTopic: General Tags:
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Reply to Does signed macho binary with teamID is signed by Apple root certificate
I’m confused. To start, I’m concerned about this path: [quote='818938021, chapo213, /thread/818938, /profile/chapo213'] I decided to rely only on the Team Identifier. [/quote] I don’t understand how you can trust anything about the code signature, and that includes the Team ID, if you don’t first validate the code signature. Next, in cases like this I usually ask about the big picture. And on that subject you wrote: [quote='818938021, chapo213, /thread/818938, /profile/chapo213'] In my application I validate the authenticity of my own binaries [/quote] Programs can’t authenticate themselves. If an attacker is able to modify your code, they can also remove or subvert any checks that you add. What problem are you trying to solve here? ps On iOS I usually point folks at App Attest, but I’m presuming that you’re on the Mac. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Code Signing SubTopic: Certificates, Identifiers & Profiles Tags:
2w
Reply to The SecKeyCreateSignature method always prompts for the current user's login password.
[quote='818948021, Ere0n, /thread/818948, /profile/Ere0n'] this private key is clearly stored in the local P12 file [/quote] That’s not the caes, at least on macOS. SecPKCS12Import behaves differently on iOS and macOS: On iOS it imports the PKCS#12 file and gives you back an in-memory digital identity. On macOS, it defaults to importing the PKCS#12 file to the default keychain, and gives you back a digital identity that references that keychain. If you want the iOS behaviour on macOS, you have to opt it to that by setting kSecImportToMemoryOnly. Having said that, I’m not sure that continuing to re-import the file is the right option. In general, it’s better to store secrets in the keychain rather than in a .p12 file on disk. But that raises the question of which keychain. I generally recommend the data protection keychain, in which case the path forward is: Get an in-memory digital identity. Call SecItemAdd with the kSecUseDataProtectionKeychain to add it to the data protection keyc
Topic: Privacy & Security SubTopic: General Tags:
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: the user taps Stop in the Live Activity the system expires the task due to time expiration the task is terminated due to system resource pressure (CPU, memory, battery, etc.) other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: In the context of
Topic: App & System Services SubTopic: Core OS Tags:
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101
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BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: • the user taps Stop in the Live Activity • the system expires the task due to time expiration • the task is terminated due to system resource pressure (CPU, memory, battery, etc.) • other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: 1. In the
Topic: App & System Services SubTopic: Core OS Tags:
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79
2w
On iOS 26, HLS alternate audio track selection behaves inconsistently
Summary On iOS 26, HLS alternate audio track selection behaves inconsistently on both VOD and live streams: the French track falls back to the DEFAULT=YES (English) track after manual selection, and in some cases switching to a non-default track appears to work but it is then impossible to switch back to English. Environment iOS version: 26 Players affected: native Safari on iOS 26 and THEOplayer (issue also reproducible on THEOplayer's own demo page) Stream type: HLS/CMAF with demuxed alternate audio renditions (CMFC container) Affected stream types: both VOD and live streaming Issue NOT present on iOS 17/18 Manifest #EXTM3U #EXT-X-VERSION:4 #EXT-X-INDEPENDENT-SEGMENTS #EXT-X-STREAM-INF:BANDWIDTH=8987973,AVERAGE-BANDWIDTH=8987973,VIDEO-RANGE=SDR,CODECS=avc1.640028,RESOLUTION=1920x1080,FRAME-RATE=29.970,AUDIO=program_audio video_1080p.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=en,ASSOC-LANGUAGE=en,NAME=English,AUTOSELECT=YES,DEFAULT=YES,CHANNELS=2,URI=audi
Topic: Media Technologies SubTopic: Streaming Tags:
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115
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Reply to On iOS 26, HLS alternate audio track selection behaves inconsistently
Update — Workaround found After further investigation I have found a workaround that resolves the inconsistent track switching behaviour described above. Observation I noticed that changing the order of EXT-X-MEDIA audio entries in the manifest produced different results. Specifically, when the DEFAULT=YES track is listed first, switching behaviour is unreliable. When the DEFAULT=YES track is placed last, switching back to the default language works correctly. Workaround Reorder the EXT-X-MEDIA audio entries so that the DEFAULT=YES rendition appears last in the manifest: #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=de,NAME=Deutsch,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_DEU.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=fr,NAME=Francais,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_FRA.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=en,NAME=English,AUTOSELECT=YES,DEFAULT=YES,CHANNELS=2,URI=audio_ENG.m3u8 In our case the manifest is generated programmatically, so t
Topic: Media Technologies SubTopic: Streaming Tags:
2w
Reply to Recording a Packet Trace
Thank you for the detailed instructions, I still cannot get it to work though. My Mac is running macOS 15.7.4 and my iPhone is on iOS 26.3.1, but step 9 invariably fails. I even tried messing with the system firewall settings, allowing all incoming connections to mitmproxy and disabling the firewall altogether, but still no luck.
Topic: App & System Services SubTopic: Networking Tags:
2w
Reply to Partially disable liquid glass effect from navigation bars but retain on tabbar
@Tmmn Add this code to your collectionView or another scrollView-based class: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.style = .hard } If you want even more old-school style: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.isHidden = true } Configure appearance for navigationItem: let appearance = UINavigationBarAppearance() appearance.configureWithDefaultBackground() appearance.backgroundEffect = UIBlurEffect(style: .systemChromeMaterial) navigationItem.standardAppearance = appearance Also it can be configured globally: UINavigationBar.appearance().standardAppearance = appearance
Topic: UI Frameworks SubTopic: UIKit Tags:
2w
AVAudioSession : Audio issues when recording the screen in an app that changes IOBufferDuration on iOS 26.
Among Japanese end users, audio issues during screen recording—primarily in game applications—have become a topic of discussion. We have confirmed that the trigger for this issue is highly likely to be related to changes to IOBufferDuration. When using setPreferredIOBufferDuration and the IOBufferDuration is set to a value smaller than the default, audio problems occur in the recorded screen capture video. Audio playback is performed using AudioUnit (RemoteIO). https://developer.apple.com/documentation/avfaudio/avaudiosession/setpreferrediobufferduration(_:)?language=objc This issue was not observed on iOS 18, and it appears to have started occurring after upgrading to iOS 26. We provide an audio middleware solution, and we had incorporated changes to IOBufferDuration into our product to achieve low-latency audio playback. As a result, developers using our product as well as their end users are being affected by this issue. We kindly request that this issue be investigated and addressed in a
Topic: Media Technologies SubTopic: Audio
2
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473
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Reply to iOS 26.2 RC DeviceActivityMonitor.eventDidReachThreshold regression?
Thanks a lot for confirming that this is currently investigated! Can you say when this will be addressed? I have reported this horrible regression in iOS 26 beta 1 in June 2025. It’s kinda sad that this didn’t seem to have any priority for Apple to get addressed before the public version was released. In 3 months this bug report will be one year old. [quote='874099022, DTS Engineer, /thread/809410?answerId=874099022#874099022'] This is a known issue that is currently being investigated. If you have already filed a bug report for this issue, thank you. [/quote]
Topic: App & System Services SubTopic: General Tags:
2w
Radio station APP iOS
Hi everyone, I'm the owner of a radio station called Radio Krimi and we have an official APP on iOS but because the technician, don't replied anymore to our message, we would like to update it with a new audio link. Then deeply sorry but I really don't know how to do it, basically it sould be easy because is a just a new link instead an old one. Please someone could help us with the process ? Thanks a lot ! Seb https://apps.apple.com/fr/app/radio-krimi/id1034088733
Topic: Media Technologies SubTopic: General Tags:
1
0
811
2w
SecureTransport PSK Support for TLS
We have successfully deployed our Qt C++ application on Windows and Android using OpenSSL with TLS Pre-Shared Key (PSK) authentication to connect to our servers. However, I understand that apps submitted to the App Store must use SecureTransport as the TLS backend on iOS. My understandiunig is that SecureTransport does not support PSK ciphersuites, which is critical for our security architecture. Questions: Does SecureTransport support TLS PSK authentication, or are there plans to add this feature? If PSK is not supported, what is Apple's recommended alternative for applications that require PSK-based authentication? Is there an approved exception process that would allow me to use OpenSSL for TLS connections on iOS while still complying with App Store guidelines? The application requires PSK for secure communication with our infrastructure, and we need guidance on how to maintain feature parity across all platforms while meeting App Store requirements
Topic: Privacy & Security SubTopic: General Tags:
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76
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2w
Reply to Unable to Download Apps via TestFlight - "The requested app is not available or doesn't exist" Error
I have the exact same issue for both my iOS apps. Can't add them to external testers in testflight either.
Topic: App Store Distribution & Marketing SubTopic: TestFlight Tags:
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2w
Reply to Does signed macho binary with teamID is signed by Apple root certificate
I’m confused. To start, I’m concerned about this path: [quote='818938021, chapo213, /thread/818938, /profile/chapo213'] I decided to rely only on the Team Identifier. [/quote] I don’t understand how you can trust anything about the code signature, and that includes the Team ID, if you don’t first validate the code signature. Next, in cases like this I usually ask about the big picture. And on that subject you wrote: [quote='818938021, chapo213, /thread/818938, /profile/chapo213'] In my application I validate the authenticity of my own binaries [/quote] Programs can’t authenticate themselves. If an attacker is able to modify your code, they can also remove or subvert any checks that you add. What problem are you trying to solve here? ps On iOS I usually point folks at App Attest, but I’m presuming that you’re on the Mac. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Code Signing SubTopic: Certificates, Identifiers & Profiles Tags:
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2w
Reply to Implementation of Screen Recording permissions for background OCR utility
Just to confirm, you’re talking about iOS, right? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Graphics & Games SubTopic: General Tags:
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2w
Reply to Biometrics prompt + private key access race condition on since iOS 26.1
Sorry I missed, your message. Unfortunately we still get this issue with iOS 26.3 and 26.3.1. We already share the same LA context between SecItem actions.
Topic: Privacy & Security SubTopic: General Tags:
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Reply to The SecKeyCreateSignature method always prompts for the current user's login password.
[quote='818948021, Ere0n, /thread/818948, /profile/Ere0n'] this private key is clearly stored in the local P12 file [/quote] That’s not the caes, at least on macOS. SecPKCS12Import behaves differently on iOS and macOS: On iOS it imports the PKCS#12 file and gives you back an in-memory digital identity. On macOS, it defaults to importing the PKCS#12 file to the default keychain, and gives you back a digital identity that references that keychain. If you want the iOS behaviour on macOS, you have to opt it to that by setting kSecImportToMemoryOnly. Having said that, I’m not sure that continuing to re-import the file is the right option. In general, it’s better to store secrets in the keychain rather than in a .p12 file on disk. But that raises the question of which keychain. I generally recommend the data protection keychain, in which case the path forward is: Get an in-memory digital identity. Call SecItemAdd with the kSecUseDataProtectionKeychain to add it to the data protection keyc
Topic: Privacy & Security SubTopic: General Tags:
Replies
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Views
Activity
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: the user taps Stop in the Live Activity the system expires the task due to time expiration the task is terminated due to system resource pressure (CPU, memory, battery, etc.) other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: In the context of
Topic: App & System Services SubTopic: Core OS Tags:
Replies
1
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0
Views
101
Activity
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: • the user taps Stop in the Live Activity • the system expires the task due to time expiration • the task is terminated due to system resource pressure (CPU, memory, battery, etc.) • other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: 1. In the
Topic: App & System Services SubTopic: Core OS Tags:
Replies
1
Boosts
0
Views
79
Activity
2w
On iOS 26, HLS alternate audio track selection behaves inconsistently
Summary On iOS 26, HLS alternate audio track selection behaves inconsistently on both VOD and live streams: the French track falls back to the DEFAULT=YES (English) track after manual selection, and in some cases switching to a non-default track appears to work but it is then impossible to switch back to English. Environment iOS version: 26 Players affected: native Safari on iOS 26 and THEOplayer (issue also reproducible on THEOplayer's own demo page) Stream type: HLS/CMAF with demuxed alternate audio renditions (CMFC container) Affected stream types: both VOD and live streaming Issue NOT present on iOS 17/18 Manifest #EXTM3U #EXT-X-VERSION:4 #EXT-X-INDEPENDENT-SEGMENTS #EXT-X-STREAM-INF:BANDWIDTH=8987973,AVERAGE-BANDWIDTH=8987973,VIDEO-RANGE=SDR,CODECS=avc1.640028,RESOLUTION=1920x1080,FRAME-RATE=29.970,AUDIO=program_audio video_1080p.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=en,ASSOC-LANGUAGE=en,NAME=English,AUTOSELECT=YES,DEFAULT=YES,CHANNELS=2,URI=audi
Topic: Media Technologies SubTopic: Streaming Tags:
Replies
1
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0
Views
115
Activity
2w
Reply to On iOS 26, HLS alternate audio track selection behaves inconsistently
Update — Workaround found After further investigation I have found a workaround that resolves the inconsistent track switching behaviour described above. Observation I noticed that changing the order of EXT-X-MEDIA audio entries in the manifest produced different results. Specifically, when the DEFAULT=YES track is listed first, switching behaviour is unreliable. When the DEFAULT=YES track is placed last, switching back to the default language works correctly. Workaround Reorder the EXT-X-MEDIA audio entries so that the DEFAULT=YES rendition appears last in the manifest: #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=de,NAME=Deutsch,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_DEU.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=fr,NAME=Francais,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_FRA.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=en,NAME=English,AUTOSELECT=YES,DEFAULT=YES,CHANNELS=2,URI=audio_ENG.m3u8 In our case the manifest is generated programmatically, so t
Topic: Media Technologies SubTopic: Streaming Tags:
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Views
Activity
2w
Reply to Recording a Packet Trace
Thank you for the detailed instructions, I still cannot get it to work though. My Mac is running macOS 15.7.4 and my iPhone is on iOS 26.3.1, but step 9 invariably fails. I even tried messing with the system firewall settings, allowing all incoming connections to mitmproxy and disabling the firewall altogether, but still no luck.
Topic: App & System Services SubTopic: Networking Tags:
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Activity
2w
Reply to Partially disable liquid glass effect from navigation bars but retain on tabbar
@Tmmn Add this code to your collectionView or another scrollView-based class: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.style = .hard } If you want even more old-school style: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.isHidden = true } Configure appearance for navigationItem: let appearance = UINavigationBarAppearance() appearance.configureWithDefaultBackground() appearance.backgroundEffect = UIBlurEffect(style: .systemChromeMaterial) navigationItem.standardAppearance = appearance Also it can be configured globally: UINavigationBar.appearance().standardAppearance = appearance
Topic: UI Frameworks SubTopic: UIKit Tags:
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Activity
2w
AVAudioSession : Audio issues when recording the screen in an app that changes IOBufferDuration on iOS 26.
Among Japanese end users, audio issues during screen recording—primarily in game applications—have become a topic of discussion. We have confirmed that the trigger for this issue is highly likely to be related to changes to IOBufferDuration. When using setPreferredIOBufferDuration and the IOBufferDuration is set to a value smaller than the default, audio problems occur in the recorded screen capture video. Audio playback is performed using AudioUnit (RemoteIO). https://developer.apple.com/documentation/avfaudio/avaudiosession/setpreferrediobufferduration(_:)?language=objc This issue was not observed on iOS 18, and it appears to have started occurring after upgrading to iOS 26. We provide an audio middleware solution, and we had incorporated changes to IOBufferDuration into our product to achieve low-latency audio playback. As a result, developers using our product as well as their end users are being affected by this issue. We kindly request that this issue be investigated and addressed in a
Topic: Media Technologies SubTopic: Audio
Replies
2
Boosts
0
Views
473
Activity
2w
Reply to iOS 26.2 RC DeviceActivityMonitor.eventDidReachThreshold regression?
Thanks a lot for confirming that this is currently investigated! Can you say when this will be addressed? I have reported this horrible regression in iOS 26 beta 1 in June 2025. It’s kinda sad that this didn’t seem to have any priority for Apple to get addressed before the public version was released. In 3 months this bug report will be one year old. [quote='874099022, DTS Engineer, /thread/809410?answerId=874099022#874099022'] This is a known issue that is currently being investigated. If you have already filed a bug report for this issue, thank you. [/quote]
Topic: App & System Services SubTopic: General Tags:
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Activity
2w
Radio station APP iOS
Hi everyone, I'm the owner of a radio station called Radio Krimi and we have an official APP on iOS but because the technician, don't replied anymore to our message, we would like to update it with a new audio link. Then deeply sorry but I really don't know how to do it, basically it sould be easy because is a just a new link instead an old one. Please someone could help us with the process ? Thanks a lot ! Seb https://apps.apple.com/fr/app/radio-krimi/id1034088733
Topic: Media Technologies SubTopic: General Tags:
Replies
1
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0
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811
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2w