I am running postfix on macOS Sequoia, and need it to log any kind of error to fix them. I found that in this version of macOS, syslogd is configured with the file /etc/asl/com.apple.mail, which contains: # mail facility has its own log file ? [= Facility mail] claim only > /var/log/mail.log mode=0644 format=bsd rotate=seq compress file_max=5M all_max=50M * file /var/log/mail.log which is its install configuration and seems correct. Postfix is started ( by launchd ) and running ( ps ax | grep master ), but on sending errors occur, and nothing is logged. How to make postfix to log in /var/log/mail.log which is the normal way on millions of postfix servers around the world?

When asking Siri to run a shortcut, it will spawn two processes called BackgroundShortcutRunner that do not die when the shortcut is done running. If the Siri window is on screen when I speak to have the shortcut run it does not spawn those two processes. However if the Siri window is not on screen when I speak, the Siri window appears and spawns these two processes. The two processes do not terminate once the shortcut is done running. I now have over 200 these processes since rebooting three days ago to install 26.4. FB22015192

So I'm reworking couple things in my app. And I noticed I had this old code that does the following: Creates a temporary directory. Writes a file in the temporary directory. After the file is written moves the file out of the temporary location and places it in its final destination. Okay so I was not creating the temporary directory using the recommended API. I was simply doing something like this: NSURL *tempDirectory = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingPathComponent:[NSProcessInfo processInfo].globallyUniqueString]]; // Create tempDirectory and write files inside it. Now I just changed the code to use the recommended API which takes the the volume of the target destination into account: -URLForDirectory:inDomain:appropriateForURL:create:error:) and I pass in NSItemReplacementDirectory and a url to appropriateForURL so the destination volume is taken into account. Now I have external storage mounted and I use the recommended approach. I discovered NSFileManager simply writes a directory right in a user facing location titled: **(A Document Being Saved By App Name) ** and the folder is not hidden. Is this intended behavior for this API? Are temporary files supposed to be user facing? I know it is good practice to clean up temporary stuff when you are done but in crashes or just forgetting to clean up will leave these behind which isn't the behavior I expect for "temporary files." Also if the user is viewing the folder in Finder they'll see these A Document Being Saved By App Name folders appear and disappear in the window as my app does this work.

I have a BLE device which my app connects to and can detect button presses. On a button press, I want my app to start recording using the AudioRecordingIntent. But my app doesn't work and throws a background error. Is there any reliable way I can get the app to start recording audio in the background?

Hello, We are implementing in-app provisioning in our fintech app; the card issuer is a third party, so we have limited control and visibility. We have ruled out the causes we could investigate on our side and on the card issuer’s side. We are reaching out to ask for your help in understanding what is going wrong so we can fix it. What happens: User taps “Add to Apple Wallet” → we present PKAddPaymentPassViewController → they tap Next → after a few seconds the flow fails with "Set Up Later" alert. Device log: ProvisioningOperationComposer: Step 'eligibility' failed with error <PKProvisioningError: severity: 'terminal'; internalDebugDescriptions: '( "eligibility request failure", "Received HTTP 500" )'; underlyingError: 'Error Domain=PKPaymentWebServiceErrorDomain Code=0 "Unexpected error." UserInfo={PKErrorHTTPResponseStatusCodeKey=500, NSLocalizedDescription=Unexpected error.}'; userInfo: '{ PKErrorHTTPResponseStatusCodeKey = 500; }'; Feedback Assistant ID: FB22007923 (Error during the In-App Provisioning process)

Should there be separate intents to open each supported file type? Or a single intent, and my code sniffs out the format?

On Sequoia, I want to configure my postfix as a server. And for this I have to change the way postfix is started from: /System/Library/LaunchDaemons/com.apple.postfix.master.plist But this file is on the read only / file system. Then I just unloaded this startup, and made a new one in: /Library/LaunchDaemons/com.apple.postfix.master.plist and I was able to start it. But on the next system boot, the system one in /System/Library/LaunchDaemons was started again. How should I cleanly and permanently achieve this server basic modification?

I have the following code running on macOS and iOS: CKQuerySubscription *zsub = [[CKQuerySubscription alloc] initWithRecordType:ESS_CLOUDCONTROLLER_RECORDTYPE_PUSHNOTE predicate:[NSPredicate predicateWithFormat:@"TRUEPREDICATE"] subscriptionID:@"pushZSub" options:CKQuerySubscriptionOptionsFiresOnRecordUpdate|CKQuerySubscriptionOptionsFiresOnRecordCreation|CKQuerySubscriptionOptionsFiresOnRecordDeletion]; zsub.zoneID = zid; CKNotificationInfo *inf = [[CKNotificationInfo alloc] init]; inf.shouldSendContentAvailable = YES; inf.desiredKeys = @[ESS_PN_RECORDFIELD_KEY_OVERALLDATE]; zsub.notificationInfo = inf; CKModifySubscriptionsOperation *msop = [[CKModifySubscriptionsOperation alloc] initWithSubscriptionsToSave:@[zsub] subscriptionIDsToDelete:nil]; msop.qualityOfService = NSQualityOfServiceUserInitiated; msop.modifySubscriptionsCompletionBlock = ^(NSArray<CKSubscription *> * _Nullable savedSubscriptions, NSArray<CKSubscriptionID> * _Nullable deletedSubscriptionIDs, NSError * _Nullable operationError) { dispatch_async(dispatch_get_main_queue(), ^{ if (savedSubscriptions.count == 1) { //works also when already created. compH(YES, nil); } else { compH(NO, nil); } }); }; [self.database addOperation:msop]; (code synopsis: after i create a custom zone (not shown in code), I add a ckquerysubscription to it for a specific record type, configured as a silent notification) When I change the according record in my Mac app, I get an immediate silent push on iOS. On macOS, however, after I change the record in my iOS app, I don't get one. Sometimes, one silent push makes it through every now and then a minute+ late or so, and after that, it's going missing again. What's the deal? Everything's set up correctly (com.apple.developer.aps-environment is set, container-identifiers are the same, icloud services are the same, ubiquity-kvstore-identifier are the same). I obviously register for remote notifications in both apps. I see all the records and subscriptions and zones in both the Mac and iOS app. I tried setting alertBody to an empty string, or soundName to an empty string, or both to an empty string: no difference I tried having different subscriptions for my Mac and iOS app, since they use different bundle ids, but that was merged into one subscription server-side, so I'm thinking that's not it I tried making it not-silent by setting contentAvailable to NO and adding a full alertBody, title and subtitle. Again, worked on iOS, not on macOS. This has been going on since macOS 14 Sonoma (when I first got reports of this. Now running on macOS 26.3). Before Sonoma, it worked just fine. Now I thought perhaps it's because I had a subscription on the default zone, and not a custom one, so I tried subscribing to changes on a record in a custom zone (see code above), but that did not change anything either. It's all working fine, only the push notifications are not making it through to the Mac app. If I sudo killall apsd (kill the push service daemon), the last push notification suddenly miraculously makes it through, by the way. At this point, I'm out of ideas and would very much appreciate pointers as to how to debug this. Polling every 30 seconds for changes is so 1990s. Speaking of which, this is a rather long-time-running app (started in 2011). Could my CloudKit database be “too old” or “corrupted” or whatever? Thank you kindly, – Matthias

Hey y'all, I'm reaching out because of an observed issue that I am experience both in sandbox and in production environments. This issue does not occur when using the Local StoreKit configurations. For context, my app only implements auto-renewing subscriptions. I'm trying to track with my own analytics every time a successful purchase is made, whether in the app or externally through Subscription Settings. I'm seeming too many events for just one purchase. My app is observing Transaction.updates. When I make a purchase with Product.purchase(_:), I successfully handle the purchase result. After about 10-20 seconds, I receive 2-3 new transactions in my Transaction.updates, even though I already handled and finished the Purchase result. This happens on production, where renewals are one week. This also happens in Sandbox, where at minimum renewals are every 3 minutes. The transactions do not differ in transactionId, revocationDate, expirationDate, nor isUpgraded... so not sure why they're coming in through Transaction.updates if there are no "updates" to be processing. For purchases made outside the app, I get the same issue. Transaction gets handled in updates several times. Note that this is not an issue if a subscription renews. I use `Transaction.reason I want to assume that StoreKit is a perfect API and can do no wrong (I know, a poor assumption but hear me out)... so where am I going wrong? My current thought is a Swift concurrency issue. This is a contrived example: // Assume Task is on MainActor Task(priority: .background) { @MainActor in for await result in Transaction.updates in { // We suspend current process, // so will we go to next item in the `for-await-in` loop? // Because we didn't finish the first transaction, will we see it again in the updates queue? await self.handle(result) } } @MainActor func handle(result) async { ... await Analytics.sendEvent("purchase_success") transaction.finish() }

Hey y'all, I'm reaching out because of an observed issue that I am experience both in sandbox and in production environments. This issue does not occur when using the Local StoreKit configurations. For context, my app only implements auto-renewing subscriptions. I'm trying to track with my own analytics every time a successful purchase is made, whether in the app or externally through Subscription Settings. I'm seeming too many events for just one purchase. My app is observing Transaction.updates. When I make a purchase with Product.purchase(_:), I successfully handle the purchase result. After a few seconds, I receive 2-3 new transactions in my Transaction.updates, even though I already handled and finished the Purchase result. The transactions seem to have the same transactionId, and values such as revocationDate, expirationDate, and isUpgraded don't seem to change between any of them. For purchases made outside the app, I get the same issue. Transaction gets handled in updates several times. Note that this is not an issue if a subscription renews. I use `Transaction.reason

After upgrading to a new iPhone and restoring from an iCloud backup using the same Apple ID, I noticed an issue with Health app permissions. ■ What is happening On my previous iPhone, an app had permission to read step count data. After restoring to the new iPhone, the app still appears in the Health app under Sources. However, when I tap the app, the usual data type permission toggles (such as Steps) are not displayed at all. As a result, the app is unable to read step count data. ■ Additional details The app itself seems to be recognized as a Health data source. However, the data type permission screen is empty. No ON/OFF switches are shown. The backup was created on iOS 18, and the restore was performed on iOS 26. I have not yet confirmed whether this also happens with other iOS version combinations. ■ Questions Is it expected behavior that Health app permissions (per data type) are not restored via iCloud backup? Has anyone experienced a similar situation where the app appears under Sources but the permission options are missing? If so, how did you resolve it? Any information from users who have experienced the same issue would be greatly appreciated.

Starting in iOS 26.4, PushKit has introduced a new "didReceiveIncomingVoIPPushWithPayload" delegate, making it explicit whether or not an app is required to report a call for any given push. The new delegate passes in a PKVoIPPushMetadata object which includes a "mustReport" property. We have not documented the exact criteria that will cause a mustReport to return false, but those criteria currently include: The app being in the foreground at the point the push is received. The app being on an active call at the point the push is received. The system determines that delivery delays have made the call old enough that it may no longer be viable. When mustReport is false, apps should call the PushKit completion handler (as they previously have) but are otherwise not required to take any other action. __ Kevin Elliott DTS Engineer, CoreOS/Hardware

Hi, we are setting up Apple Pay on our website which sells only digital goods. We don't collect a shipping address because we aren't shipping anything. We want to use the user's billing address in order to show them the total amount (including sales tax) before they authorize the purchase. However, it seems that the billing address isn't always provided by Apple Pay before the payment is authorized. With Apple Pay, what is the recommended way of acquiring the user's billing address before they authorize the purchase? -- More details about our setup: We are using the Apple Pay JS API. In createPaymentRequest, we specify requiredBillingContactFields: ['postalAddress'], but per the docs, the address is provided after the user authorizes the transaction. That is too late for us because we want to show the sales tax before the user authorizes the purchase. We have attempted to work around this by getting the billing contact details in session.onpaymentmethodselected. For example: session.onpaymentmethodselected = function (event) { const billingContact = event.paymentMethod.billingContact; // Sometimes `billingContact` exists, but other times it does not } This doc states: Before the user authorizes the transaction, you receive redacted billing contact information in a callback event. The redacted information includes only the necessary data for completing transaction tasks, such as calculating taxes or shipping costs. But in practice, we've observed that sometimes no billing contact information is provided. When a user switches from one card to another, we seem to never get the billing contact associated with the newly selected card. Is there something we're missing?

The scenario is, in a macOS app (primarly), main thread needs to wait for some time for a certain 'event'. When that event occurs, the main thread is signaled, it gets unblocked and moves on. An example is, during shutdown, a special thread known as shutdown thread waits for all other worker threads to return (thread join operation). When all threads have returned, the shutdown thread signals the main thread, which was waiting on a timer, to continue with the shutdown flow. If shutdown thread signals the main thread before the later's timer expires, it means all threads have returned. If main thread's timer expires first, it means some threads have failed to join (probably stuck in infinite loop due to bug, disk I/O etc.). This post is to understand how main thread can wait for some time for the shutdown thread. There are two ways: a) dispatch_semaphore_t b) pthread conditional variable (pthread_cond_t) and mutex (pthread_mutex_t). Expanding a bit on option (b) using conditional variable and mutex: // This method is invoked on the main thread bool ConditionSignal::TimedWait() noexcept { struct timespec ts; pthread_mutex_t * mutex = (pthread_mutex_t *) (&vPosix.vMutexStorage[0]); pthread_cond_t * cond = (pthread_cond_t *) (&vPosix.vCondVarStorage[0]); // Set the timer to 3 sec. clock_gettime(CLOCK_REALTIME, &ts); ts.tv_sec += 3; pthread_mutex_lock(mutex); LOG("Main thread has acquired the mutex and is waiting!"); int wait_result = pthread_cond_timedwait(cond, mutex, &ts); switch (wait_result) { case 0: LOG("Main thread signaled!"); return true; case ETIMEDOUT: LOG("Main thread's timer expired!"); return false; default: LOG("Error: Unexpected return value from pthread_cond_timedwait: " + std::to_string(wait_result)); break; } return false; } // This method is invoked on shutdown thread after all worker threads have returned. void ConditionSignal::Raise() noexcept { pthread_mutex_t * mutex = (pthread_mutex_t *) (&vPosix.vMutexStorage); pthread_cond_t * cond = (pthread_cond_t *) (&vPosix.vCondVarStorage); pthread_mutex_lock(mutex); LOG("[Shutdown thread]: Signalling main thread..."); pthread_cond_signal(cond); pthread_mutex_unlock(mutex); } Both options allow the main thread to wait for some time (for shutdown thread) and continue execution. However, when using dispatch_semaphore_t, I get the following warning: Thread Performance Checker: Thread running at User-interactive quality-of-service class waiting on a lower QoS thread running at Default quality-of-service class. Investigate ways to avoid priority inversions Whereas, with conditional variables, there are no warnings. I understand the warning - holding the main thread can prevent it from responding to user events, thus causing the app to freeze. And in iOS, the process is killed if main thread takes more than 5 secs to return from applicationWillTerminate(_:) delegate method. But in this scenario, the main thread is on a timed-wait, for some milliseconds i.e., it is guaranteed to not get blocked indefinitely. While this is described for macOS, this functionality is required for all Apple OSes. What is the recommend way?

Hi everyone, On macOS 26.4 beta (with Xcode 26.4 beta), I’m seeing the following console messages in a brand new SwiftData + CloudKit template project (no custom logic added, fresh CloudKit container): updateTaskRequest called for a pre-running task com.apple.coredata.cloudkit.activity.export.F9EE783D-7521-4EC2-B42C-9FD1F29BA5C4 updateTaskRequest called for an already running/updated task com.apple.coredata.cloudkit.activity.export.F9EE783D-7521-4EC2-B42C-9FD1F29BA5C4 Error updating background task request: Error Domain=BGSystemTaskSchedulerErrorDomain Code=8 "(null)" These messages appear: When CloudKit is enabled Occasionally on app launch Often when bringing the app back to the foreground (Cmd-Tab away and back) Even with zero additional SwiftData logic They do not appear when CloudKit is disabled. This behavior is reproducible on a completely new project with a fresh CloudKit container. Questions: What exactly do these messages indicate? Is BGSystemTaskScheduler Code=8 expected in this context? Are these safe to ignore? Is this a known change in logging behavior in macOS 26.4 beta? Additionally, in a larger project I’ve observed SwiftData crashes and initially suspected these logs might be related. However, since the issue reproduces in a fresh template project, I’m unsure whether this is simply verbose beta logging or something more serious. Any clarification would be appreciated. Filed as FB21993521.

Environment OS: iOS 26.2 ~ 26.3 SDK: Xcode 16.4 (Target: iOS 17.6) Framework: StoreKit 2 Environment: Production (Cannot reproduce in Sandbox or Xcode Configuration) Issue Description We are encountering a critical purchase failure that occurs exclusively in the Production environment. When a user who has a "Pending Downgrade" (scheduled for the next renewal date) attempts to re-purchase their current higher-tier product to cancel the downgrade, StoreKit 2 returns an error. Steps to Reproduce User is currently on "Product A" (Higher Tier). User schedules a downgrade to "Product B" (Lower Tier). The status changes to "Pending Downgrade". User attempts to purchase "Product A" again via Product.purchase(). The system purchase sheet appears, and the user confirms the purchase. Immediately after authentication, a system alert from StoreKit appears saying: "Cannot process request at this time. Please try again later." (現在リクエストを一時的に処理できません。しばらくしてからもう一度お試しください。) After dismissing the alert, the app receives StoreKitError code 2 (unknown) with the localized message: "Request could not be completed" (リクエストを完了できません). Technical Observations Transaction.currentEntitlements: Does not change. App Store Server Notifications (V2): No notifications are sent to our server. Sandbox Behavior: Works perfectly. Re-purchasing Product A successfully cancels the downgrade and the subscription remains at the Higher Tier. AppStore.sync(): Running a manual sync does not resolve the pending state after the error. Question Since we cannot debug production-level logs, we are stuck. Is this a known regression in the StoreKit 2 commerce engine regarding state synchronization for downgrades? Has anyone found a workaround for this specific scenario? Any insights would be greatly appreciated.

I've been able to run this sample project with the PIRServer. But the urls are still not blocked. https://developer.apple.com/documentation/networkextension/filtering-traffic-by-url https://github.com/apple/pir-service-example I got this on the log Received filter status change: <FilterStatus: 'running'>

I'm debugging an app I'm building and everything I'm seeing suggests I need to put in a request to Apple to turn on NetworkExtension → Packet Tunnel Provider entitlement for our Team ID and bundle IDs. 1: Is this true? 2: Doesn't the option in xcode handle this?

Hello, Recently we got a question about the event_timestamps for the phone usage report in our research project: Does the event_timestamp correspond to the start point or end point of a period of interest? For example, say the event_timestamp is 2024-07-01 23:59:59 with a duration of 86400. The user is noted to have made 2 phone calls during that event_timestamp. Did those phone calls occur in the 86400 seconds prior to that timestamp (i.e., on 2024-07-01) or in the 86400 seconds after that timestamp (i.e., on 2024-07-02)? Thanks!

Hi, I’m working on a proof of concept for a CarPlay application where I need to display multiple Points of Interest, such as EV charging stations and fuel stations. The app will also allow users to book a selected Point of Interest (for example, an EV charging slot). I understand that the app can be registered under the Navigation (turn‑by‑turn) category, but I wanted to check whether it is also possible to register it under the Driving Task category. I also want to know if i can Register for multiple Categories for my car play application.