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Can reproduce in SpeakerBox that CallKit doesn't activate audiosession when call finished by remote caller
I can reproduce the bug that CallKit doesn't active audiosession after the outgoing call put on hold because of an incoming call. VoIP calling with CallKit Steps to reproduce: Download SpeakerBox example app from the link above and start it with XCode Start a new outgoing call Call your phone from other phone Hold and Accept the call After a few secs finish the call from the other phone The outgoing call will be still on hold Click on the call and click Toggle Hold The call won't be active again because the audiosession is activated. Logs: Received provider(_:didDeactivate:) Received provider(_:didDeactivate:) Received provider(_:didDeactivate:) Received provider(_:didDeactivate:) Received provider(_:didDeactivate:) Requested transaction successfully Starting audio Type: stdio AURemoteIO.cpp:1162 failed: 561017449 (enable 3, outf< 1 ch, 44100 Hz, Float32> inf< 1 ch, 44100 Hz, Float32>) Type: Error | Timestamp: 2024-08-15 12:20:29.949437+02:00 | Process: Speakerbox | Library: libEmbeddedSystemAUs.dylib | Subsystem: com.apple.coreaudio | Category: aurioc | TID: 0x19540d AVAEInternal.h:109 [AVAudioEngineGraph.mm:1344:Initialize: (err = PerformCommand(*outputNode, kAUInitialize, NULL, 0)): error 561017449 Type: Error | Timestamp: 2024-08-15 12:20:29.949619+02:00 | Process: Speakerbox | Library: AVFAudio | Subsystem: com.apple.avfaudio | Category: avae | TID: 0x19540d Couldn't start Apple Voice Processing IO: Error Domain=com.apple.coreaudio.avfaudio Code=561017449 "(null)" UserInfo={failed call=err = PerformCommand(*outputNode, kAUInitialize, NULL, 0)} Type: Notice | Timestamp: 2024-08-15 12:20:29.949730+02:00 | Process: Speakerbox | Library: Speakerbox | TID: 0x19540d Route change: Type: Notice | Timestamp: 2024-08-15 12:20:30.167498+02:00 | Process: Speakerbox | Library: Speakerbox | TID: 0x19540d ReasonUnknown Type: Notice | Timestamp: 2024-08-15 12:20:30.167549+02:00 | Process: Speakerbox | Library: Speakerbox | TID: 0x19540d Previous route: Type: Notice | Timestamp: 2024-08-15 12:20:30.167568+02:00 | Process: Speakerbox | Library: Speakerbox | TID: 0x19540d <AVAudioSessionRouteDescription: 0x302c00bc0, inputs = ( "<AVAudioSessionPortDescription: 0x302c01330, type = MicrophoneBuiltIn; name = iPhone Mikrofon; UID = Built-In Microphone; selectedDataSource = (null)>" ); outputs = ( "<AVAudioSessionPortDescription: 0x302c004d0, type = Receiver; name = Vev\U0151; UID = Built-In Receiver; selectedDataSource = (null)>" )> Type: Notice | Timestamp: 2024-08-15 12:20:30.167626+02:00 | Process: Speakerbox | Library: Speakerbox | TID: 0x19540d
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ExtensionKit and iOS 26
It looks like ExtensionKit (and ExtensionFoundation) is fully available on iOS 26 but there is no mention about this in WWDC. From my testing, it seems as of beta 1, ExtensionKit allows the app from one dev team to launch extension provided by another dev team. Before we start building on this, can someone from Apple help confirm this is the intentional behavior and not just beta 1 thing?
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iOS 26 regression: `DeviceActivityEvent`: `eventDidReachThreshold` called immediately (instead of waiting till threshold is reached)
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
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The relationship between age verification and permission kit isn't clear (IMO)
I'm trying to digest and understand the new set of APIs relating age verification that were released last week. I have say that without some cohesive overview, example app, just a simple diagram showing the relationship of everything, its not at all clear to me what's going on nor what an app developer is expected to do to use these apis (I'm a senior engineer with 15 year's iOS experience, but hey maybe I'm just a bit slow in the head). I have a few questions, but the topic of this post is what is the relationship between age verification i.e. between the declared age range/significant change and Permission Kit? The documentation for the former mentions the Significant Change API/Topic (https://developer.apple.com/news/?id=2ezb6jhj / https://developer.apple.com/documentation/PermissionKit/SignificantAppUpdateTopic). Now the Significant Change Topic is documented as being part of PermissionKit, however the documentation for that (https://developer.apple.com/documentation/permissionkit) States emphatically at the top: "Communication experiences using the PermissionKit framework are only available using iMessage." Meaning you can't use PermissionKit for anything other than iMessage? If it doesn't mean that, then why does it state so? If it does mean that, then how does an app which has nothing to do with iMessage make use of Significant Change - because this documentation:https://developer.apple.com/news/?id=2ezb6jhj Is talking about using significant change for all apps, not iMessage. So there is a contradiction here.
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179
Nov ’25
macOS 26.1 – Severe lag in Open/Save panels when iCloud Drive root contains any items (FileProvider v3 regression)
I’ve filed this as FB20943098 (macOS 26.1 – FileProvider v3 synchronous enumeration bug), but posting here in case others can reproduce and add duplicates. Systems: macOS 26.1 (26B82) M4 Mac mini Pro and M4 MacBook Air Symptoms: In any app (TextEdit, Pages, Browsers, etc.), the Open/Save dialog lags for ~1s per folder navigation click. CPU spikes from fileproviderd, cloudd, bird, and siriactionsd. Key discovery: If my iCloud Drive root is empty (only “Documents” and “Downloads”), performance is perfect. As soon as any folder or file exists at the root of iCloud Drive, the lag returns immediately. Moving those items into “Documents” or “Downloads” makes everything smooth again. Analysis: Based on process traces and container paths, this appears to originate in the FileProvider.framework subsystem (via fileproviderd), which mediates iCloud Drive. Early evidence suggests that folder enumeration of the iCloud Drive container root may be blocking UI threads in macOS 26.1. I believe this may be related to the recent internal migration of the file-provider backend (often referred to as “v3”), but I do not have direct confirmation from Apple of that exact change. MacOS 26.1’s new FileProvider v3 backend seems to be blocking the Open/Save panel while enumerating the iCloud Drive root container (~/Library/Application Support/FileProvider/723EBBFF-…). Folder enumeration seems to wait synchronously for metadata from fileproviderd, and if the local SQLite DB is busy (WAL writes or sync state checks), UI freezes briefly. Workarounds: Disabling iCloud Drive entirely fixes the issue. Simply disabling Desktop/Documents sync does not help. Keeping the iCloud Drive root empty avoids the lag without turning iCloud off. I am able to store whatever I please in the Desktop or Documents folder which is currently syncing. Would appreciate if others on 26.1 could confirm. Engineers: I’ve attached fs_usage, log stream, and process samples to my Feedback ticket via the FB20943098. Expected behavior: Folder enumeration in NSOpenPanel should remain asynchronous regardless of FileProvider background activity. Open/save modal should be responsive and smooth.
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Nov ’25
[macOS] AppTransaction questions (internet connection requirement)
Hello, I hope to find out more about how AppTransaction works on macOS, specifically about its internet connection requirements: if I use this to validate that the app is a legit purchase from the Mac App Store, I would not want it to have an always-on requirement just to validate. Does AppTransaction require the user to always be online for AppTransaction.shared ? When an app is downloaded from the Mac App Store, is the data needed for AppTransaction automatically embedded during that download, or is that data downloaded upon first launch of the app, therefore requiring an internet connection at launch time? Once the data/receipt has been downloaded by AppTransaction, is it cached until the app's next update, or is it cleared at some time during the version's life and needs to be re-downloaded, therefore requiring an internet connection at launch? Where is that receipt/data stored? Also, if you don't mind me sneaking in this non-related but sort of related question, in terms of receipt validation: Does macOS Sequoia's MAC address rotation feature affect receipt validation in any way when using IOKit? Thank you kindly, – Matthias
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Apr ’25
Does Apple allow packed format attestation in passkey credential provider approach?
I am trying to implement a third party passkey credential provider and I have been able to successfully setup the project for that. Below is a sample code which I am using - let passkeyRegistrationCredential = ASPasskeyRegistrationCredential(relyingParty: self.request?.credentialIdentity.serviceIdentifier.identifier ?? "", clientDataHash: self.request?.clientDataHash ?? Data(), credentialID: Data(credentialId), attestationObject: Data(attestationBytes) self.extensionContext.completeRegistrationRequest(using: passkeyRegistrationCredential) The attestationBytes object that I am generating and sending back to RP seems to work only if I set the "fmt" to "none", which basically requires "attStmt" to be sent as an empty value as per WebAuthn spec - https://www.w3.org/TR/webauthn-2/#sctn-none-attestation When trying to set the "fmt" to "packed" in attestation object and creating a self signed "attStmt" consisting of "alg" and "sig" key-values referring - https://www.w3.org/TR/webauthn-2/#sctn-packed-attestation, it does not seem to work. The RP throws an error. I do not have "x5c" object as that supposedly is not mandatory in case of self attestation. I have "authData" also as part of the response properly setup. Is it not possible to use packed attestation or am I missing something in creating the attestation object? Also, does Apple modify the response being sent in the background before sending to RP if packed fmt is used?
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1.3k
Dec ’24
dtrace freezes macOS Sequoia 15.3.1 on M2
Hi gurus, Recently I tried to use dtrace on macOS to do some performance analysis, and found that dtrace reliably freezes the whole system. I have disabled SIP (recovery mode, csrutil disable), when I run sudo filebyproc.d (or any other dtrace command), the whole system just freezes, only hard restart (press power button) can restore the system. I saw someone answered in https://developer.apple.com/forums/thread/735939 mentioning restart the system without sleep can work around this issue, but in my case, it doesn't work, even after fresh restart, it's the same. Is this a known issue? Any way around this issue? My system: macOS Sequoia 15.3.1 on M2. Regards, jz
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Apr ’25
macOS26: MenuBarExtra item not showing
Hi, In macOS26 beta, our app icon is not showing anymore in the MenuBar. It is also not displayed in the new section "Menu Bar > Allow in the Menu Bar", which seems to be the way to show/hide Menu Bar icons in macOS 26. The icon is correctly displayed and working in macOS 15. Our app is signed and notarized. It also has the "LSUIElement" value set to "true" in the Info.plist file. Is there some new mandatory entitlements to add in order to have our app showing in the "Allow in the Menu Bar" section? Thanks in advance for your help. Regards
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Nov ’25
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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268
Sep ’25
Transaction ID Misassociation in IAP Subscription API
Dear Apple Support Team, Hello! I am currently developing the in-app subscription functionality using Apple IAP API and have encountered a serious technical issue while processing subscription data. I would like to report this issue to you. Issue Description: When calling the subscription API endpoint, the same OriginalTransactionId returns inconsistent results. Specifically, a particular transaction ID (let's call it TransactionId_A) should belong to the subscription order with OriginalTransactionId_A, but it is currently incorrectly associated with OriginalTransactionId_B. This issue severely affects our ability to accurately manage and process subscription data. Here are the relevant log details for your reference: API Endpoint Requested: https://api.storekit.itunes.apple.com/inApps/v1/subscriptions/{TransactionId_A} (Note: The link is a placeholder for the actual API endpoint.) Log Information on February 21, 2025, at 09:40:09: { "AppAccountToken": "{AppAccountToken}", "BundleId": "{BundleId}", "Currency": "CNY", "Environment": "Production", "ExpiresDate": {ExpiresDate}, "InAppOwnershipType": "PURCHASED", "IsUpgraded": false, "OfferDiscountType": "", "OfferIdentifier": "", "OfferType": 0, "OriginalPurchaseDate": {OriginalPurchaseDate}, "OriginalTransactionId": "{OriginalTransactionId_A}", "Price": {Price}, "ProductId": "{ProductId}", "PurchaseDate": {PurchaseDate}, "Quantity": 1, "RevocationDate": 0, "RevocationReason": 0, "SignedDate": {SignedDate}, "Storefront": "CHN", "StorefrontId": {StorefrontId}, "SubscriptionGroupIdentifier": "{SubscriptionGroupIdentifier}", "TransactionId": "{TransactionId_A}", "TransactionReason": "PURCHASE", "Type": "Auto-Renewable Subscription", "WebOrderLineItemId": "{WebOrderLineItemId}" } Log Information on March 21, 2025, at 09:38:49: { "AppAccountToken": "{AppAccountToken}", "BundleId": "{BundleId}", "Currency": "CNY", "Environment": "Production", "ExpiresDate": {ExpiresDate}, "InAppOwnershipType": "PURCHASED", "IsUpgraded": false, "OfferDiscountType": "", "OfferIdentifier": "", "OfferType": 0, "OriginalPurchaseDate": {OriginalPurchaseDate}, "OriginalTransactionId": "{OriginalTransactionId_B}", "Price": {Price}, "ProductId": "{ProductId}", "PurchaseDate": {PurchaseDate}, "Quantity": 1, "RevocationDate": 0, "RevocationReason": 0, "SignedDate": {SignedDate}, "Storefront": "CHN", "StorefrontId": {StorefrontId}, "SubscriptionGroupIdentifier": "{SubscriptionGroupIdentifier}", "TransactionId": "{TransactionId_A}", "TransactionReason": "PURCHASE", "Type": "Auto-Renewable Subscription", "WebOrderLineItemId": "{WebOrderLineItemId}" } From the above logs, it is evident that the same transaction (TransactionId_A) returns different OriginalTransactionId values at different times, which is clearly not expected and severely impacts our ability to correctly process and manage subscription data. I hope you can address and investigate this issue as soon as possible. If you need any further information or assistance, please feel free to contact me. Thank you for your support! Best regards!
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Apr ’25
Error Domain=PKPassKitErrorDomain Code=2
This error occurs in Apple Pay Wallet In-App Provisioning Flow for Credit / Debit Cards When the data received from the PNO (Visa) is passed to PKAddPaymentPassRequest this error is seen in addPaymentPassViewController, in the finalize stage. Docs provide no clue as to what could be wrong. iOS 18.2.1 XCode 15.2 Error description mentions "unsupportedVersionError" Is the pass version not supported? Is the wallet version not supported? Is it an app implementation error or error in the data received from the PNO?
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760
Oct ’25
BLE Connection Failure with iPad A16 and Silicon Labs Gecko SDK 3.x Devices
We're seeing a consistent issue where iPads with the A16 chip fail to connect to our BLE device, which uses a Silicon Labs chip running Gecko SDK 3.x. All other Apple devices — including older iPads and iPhones — connect without any problems. According to Silicon Labs, the issue stems from the iPad A16 sending an LL_CHANNEL_REPORTING_IND message (opcode 0x28) during connection establishment: Per Silicon Labs: "Currently the iPad 16 will send a message for LL_CHANNEL_REPORTING_IND (opcode 0x28). This is a feature that is not supported in Gecko SDK 3.x. Shortly after, the BLE module responds with an 'Unknown Response' (opcode 0x07), indicating that it does not support opcode 0x28 After this exchange the iPad stops sending meaningful transactions to the BLE module and eventually closes the connection. The BLE Module is responding to this unknown request as specified in the BT Core Spec Volume 6 Part B." Unfortunately, the firmware on these BLE modules cannot be updated remotely, and we've already shipped several thousand units to customers. Given how widely Silicon Labs' BLE modules are deployed, we suspect this issue could be affecting many other developers and products as well. We’re hoping Apple might offer a workaround or allow us access — even internally or unofficially — to suppress or bypass this feature in CoreBluetooth for this specific scenario. For example, is there a way to disable LL_CHANNEL_REPORTING_IND or instruct the stack to ignore the unknown response from the peripheral? We’re open to any workaround via CoreBluetooth (even private APIs or entitlements, if necessary) that would allow us to preserve compatibility without a mass recall. If there's an Apple engineer monitoring this, we'd be extremely grateful for guidance or escalation. Thank you!
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Jul ’25
StoreKit appAccountToken Not Preserved During Apple ID Email Migration
I'm encountering an issue with the App Store Server API where the appAccountToken is not preserved when users migrate their Apple ID email addresses. I've submitted Feedback Assistant ticket FB18709241 but wanted to check if anyone else has experienced this and get community input on best practices. The Issue When a user migrates their Apple ID from one email to another (e.g., from olduser@example.com to newuser@icloud.com), the App Store creates a new subscription transaction with a different originalTransactionId, but the appAccountToken is not carried forward from the original transaction. What I'm Seeing note: these values are fake When querying /inApps/v1/subscriptions/{originalTransactionId} with the either post-migration transaction ID or the pre-migration transaction ID, the API returns both transactions: Pre-migration transaction (status: 2 - inactive): originalTransactionId: "12345678910111" Contains: "appAccountToken": "abc123-def456-ghi789" Post-migration transaction (status: 1 - active): originalTransactionId: "67891011121314" Missing: appAccountToken entirely The Problem The appAccountToken is our only way to link App Store subscriptions to user accounts. Without it on the new transaction: Users lose access to premium features despite having valid subscriptions Server-side renewal notifications can't be matched to user accounts Manual support intervention is required for each affected user Questions for the Community Has anyone else encountered this issue with Apple ID migrations? What's the recommended approach for handling this scenario? Is there an alternative mechanism to maintain the subscription-to-user linkage across migrations? Questions for Apple Engineers Is this the expected behavior, or should the appAccountToken be preserved? Are there any planned improvements to handle this migration scenario? What's the best practice for developers to handle this case? Interestingly, both the old and new transaction IDs return the same JSON response from the App Store Server API, suggesting Apple maintains internal linkage between these transactions, but the appAccountToken isn't carried forward to the active transaction. Any insights or similar experiences would be greatly appreciated! Thank you!! Feedback Assistant: FB18709241
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Jul ’25
'NDEF is disallowed' Xcode 16.2
Invalid entitlement for core nfc framework. The sdk version '18.2' and min OS version '14.0' are not compatible for the entitlement 'com.apple.developer.nfc.readersession.formats' because 'NDEF is disallowed'. Anyone knows what is the correct configuration SDK version and minimum iOS deployment target for NFC that has NDEF format?
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Jan ’25
Issue with "Transaction.currentEntitlements": Some paid users cannot use the features of our subscription plan
Some paid users are unable to use the paid features unlocked by purchasing our subscription plan. It seems that this is due to StoreKit 2's Transaction.currentEntitlements not working the way we would expect it to work. Are you also encountering this issue? Do you have any idea to improve this situation? At launch, our app checks if the user is subscribed to the plan, using Transaction.currentEntitlements. As a result, the currentEntitlements array was empty. Our app then fetches the products from StoreKit 2 using Product.products(for:). As a result, the Product.SubscriptionInfo.RenewalState value of the corresponding Product (product.subscription.status.first.state) is subscribed, which confirms that the user has indeed purchased our plan, but seems to contradict the absence of the corresponding transaction in Transaction.currentEntitlements. Proactive in-app purchase restore and a restore purchase button calling the AppStore.sync() method are implemented, but using the button did not solve the issue.
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Jul ’25
TestFlight user cannot re-purchase expired auto-renewable subscription – only restored purchases returned
I’m testing an auto-renewable subscription on TestFlight. Now the user can't re-purchase the same product – Apple just restores the old (expired) one, and no payment sheet appears. How can I let the same TestFlight user re-subscribe to an expired product? Do I have to create a new productId for every test cycle?
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Jul ’25