Overview

Hi, I saw the mac os 27 new features video https://developer.apple.com/videos/play/wwdc2026/224/?time=64 and was trying Provisioning and i get this warning [Internal] 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 at the line try startupOptions.setGuestProvisioning(opts) i have my vm q declared like this let vmQueue = DispatchQueue(label: "VZVirtualMachineQueue", qos: .userInteractive) and i am executing like this self.vmQueue.async { [weak self] in ......... ......... let startupOptions = VZMacOSVirtualMachineStartOptions() try? startupOptions.setGuestProvisioning(opts) vm.start(startupOptions) } and it fails with treading warning and provisioning does not happen. Thanks in advance for the help

Hi, I am trying to use AAUSBAccessoryManager with mac os 27 to connect host usb device to guest vm. here is my code // // USBPassthroughManager.swift // VirtualProg import AccessoryAccess import Foundation import IOKit @available(macOS 27.0, *) class USBPassthroughManager: NSObject, ObservableObject, AAUSBAccessoryListener { static let shared = USBPassthroughManager() @Published var availableDevices: [AAUSBAccessory] = [] func startListening() async { do { let existing = try await AAUSBAccessoryManager.shared .registerListener(self, matchingCriteria: []) await MainActor.run { self.availableDevices = existing } } catch { LogManager.shared.log(vmName: AppConstants.logGeneral, type: .error, message: "USB passthrough listener failed: \(error.localizedDescription)") } } func usbAccessoryDidConnect(_ usbAccessory: AAUSBAccessory) { DispatchQueue.main.async { guard !self.availableDevices.contains(where: { $0.registryID == usbAccessory.registryID }) else { return } self.availableDevices.append(usbAccessory) print(self.displayName(for: usbAccessory)) } } The usb icon in status bar menu is displayed and i can select the the usb device to connect to my app. the usb device is connected to my app. it is shown in the status bar. but usbAccessoryDidConnect is not firing. i have the entitlement com.apple.developer.accessory-access.usb in the capabilities. i get this in the xcode console start failed ((iokit/common) not permitted) for plugin for .......... and also disconnect is also not firing. Not sure what i am doing wrong. How can i determine the name of the USB Device from AAUSBAccessory. Any help would be appreciated. Thanks

Hi, we are looking for a solution to install an extension to Microsoft PowerPoint app in a way that's compatible with the new macOS 15 behavior for Group Containers content. PowerPoint extensions Microsoft PowerPoint can be extended by PowerPoint Add-in (.ppam) files. These files must be installed in the app's container at this location: ~/Library/Group Containers/UBF8T346G9.Office/User Content.localized/Add-Ins.localized/ The PPAM file must be also registered in the MicrosoftRegistrationDB.reg file which is a sqlite database stored at this location: ~/Library/Group Containers/UBF8T346G9.Office/MicrosoftRegistrationDB.reg These locations can be access by non-sandboxed app on macOS 14 and earlier. Slido integration Our Slido app for macOS is distributed outside the Mac App Store, it is not sandboxed and it signed and notarized. The Slido app will install the PPAM file to the documented location and register it in the database. This installation did not require additional user approval on macOS 14 and older. With changes to macOS 15, a new permissions dialog is shown with this text: "Slido" would like to access data from other apps. This will allow Slido to integrate with Microsoft PowerPoint app. [Don't Allow] [Allow] We understand this is a security feature, yet we would like to make the experience for customers much better. As users are able to save PPAM files to the location by themselves without additional permissions, they expect the Slido app would be able to do so as well when run in the user context. Slido installs its files to this location: ~/Library/Group Containers/UBF8T346G9.Office/User Content.localized/Add-Ins.localized/SlidoAddin.localized/ Can we obtain com.apple.security.temporary-exception.files.home-relative-path.read-write to the SlidoAddin.localized folder? Even when we are different TeamID? Can we obtain a user permission which will be persisted so next time the Slido app can verify its files and uninstall them without further prompts? By having access to the SlidoAddin.localized folder our app would not be able to access any other data in Microsoft PowerPoint. We understand accessing the MicrosoftRegistrationDB.reg file is more sensitive and getting exception to access it would not be feasible. But we are trying to find out our options to make the experience seamless as that's what is expected by our customers on Apple platform. I am thankfully for any guidance and constructive feedback. Jozef, Tech Leader at Slido integrations team

A ToolbarItem(placement: .bottomBar) inside a NavigationSplitView detail/destination view is missing after a device rotation on iOS 26. The bottom toolbar is missing until the view has been presented in both orientations, after which it renders correctly from then on. The issue does not reproduce on iOS 18. Environment iOS 26 only — does not reproduce on iOS 18 iPhone 17 Pro Max and iPhone 17 Air (i.e. devices that expose the landscape size class Regular width / compact height) SwiftUI NavigationSplitView with .balanced style Steps to reproduce Run the sample below on an iPhone 17 Pro Max or Air (or a simulator of either). Open the detail view (which contains a .bottomBar toolbar item) while the device is in either orientation. Rotate the device. Observe that the bottom toolbar is now missing. Expected behavior The .bottomBar button remains visible across rotation, regardless of which orientation the view was first presented in. Actual behavior On first presentation, rotating the device causes the bottom toolbar to disappear. Once the view has been presented in both landscape and portrait (roughly the third presentation), the bottom bar renders correctly and continues to behave correctly afterward. The behavior is inconsistent import SwiftUI @main struct MinimumReproducibleEventApp: App { var body: some Scene { WindowGroup { NavigationSplitView(columnVisibility: .constant(.all)) { NavigationLink("Primary") { ContentView() } } detail: { Text("Hello") } .navigationSplitViewStyle(.balanced) } } } ContentView import SwiftUI struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .toolbar { ToolbarItem(placement: .bottomBar) { Button("Hello") { print("hello") } } } } }

I'd like to create a Quick Look extension for a file type for which a location or region on a Map should be shown as preview. However the MapView would only show a grid without any map. From within the MapKit delegate I can see from the "Error" parameter (a server with this domain can not be found) that this seems to be a network issue. The Quick Look extension seems to have no access to the internet and therefore the MapView can not load any map data. I've then also done some other tests via URLSession, which also only fails with connection errors. I haven't seen any limitations or restrictions mentioned in the API documentation. Is this the expected behavior? Is this a bug? Or am I missing something?

Anyone is experiencing this issue? Today without any reason we can think of, all of our builds were expired on Testflight. Without knowing what happened, then we tried to add a new build, that it it seems to be in good shape on Testflight, even with the mark green meaning is ready to be tested. Even though, by trying to install the app on iOS using TF, we are getting a message saying "The requested app is not available"

5 days and still on waiting list for new siri ai. Tried every method on Google, safari , gemini each everything but still day 5 and on waiting list.

Installing ZFSFSKit.appex ? /Library/ExtensionKit/Extensions/ Substituting real Mach-O (libtool wrapper ? .libs/ZFSFSKit) Installing zfs.fs ? /Library/Filesystems/ mount_zfs: Mach-O 64-bit executable arm64 Done. Signing (before pluginkit, so it sees a valid signature)... Re-signing /Library/ExtensionKit/Extensions/ZFSFSKit.appex ad-hoc (no identity). Note: requires amfi_get_out_of_my_way=1 in boot-args. Team ID: ADHOC /Library/ExtensionKit/Extensions/ZFSFSKit.appex: replacing existing signature Done. Signature: Identifier=org.openzfsonosx.filesystems.zfs.fsext Signature=adhoc TeamIdentifier=not set Entitlements: <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "https://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"><dict><key>com.apple.application-identifier</key><string>ADHOC.org.openzfsonosx.filesystems.zfs.fsext</string><key>com.apple.developer.fskit.fsmodule</key><true/><key>com.apple.developer.team-identifier</key><string>ADHOC</string><key>com.apple.security.app-sandbox</key><true/></dict></plist> Registering with pluginkit... pluginkit -a done. Restarting fskitd... # sudo pluginkit -v -m -p com.apple.fskit.fsmodule + org.openzfsonosx.filesystems.zfs.fsext((null)) 6A12A41280FB-4190-B957-FA94DC89BB1E 2026-05-29 01:17:58 +0000 /Library/ExtensionKit/Extensions/ZFSFSKit.appex # sudo mkdir /Volumes/tank # sudo mount -F -t zfs /dev/disk4 /Volumes/tank # ls -la /Volumes/tank total 3 drwxr-xr-x 3 lundman staff 4 May 29 09:21 . drwxr-xr-x 4 root wheel 128 May 29 10:18 .. -rw-r--r-- 1 lundman staff 11 May 29 09:21 file.txt drwxr-xr-x 2 lundman staff 2 May 29 09:21 HelloWorld # cat /Volumes/tank/file.txt HelloWorld Even though FSKit isn't quite ready, I built a proof-of-concept FSKit extension to understand what the migration path looks like. This post shares what we got working, specific technical findings that weren't documented, and the gaps we hit that would need Apple's attention for a production implementation. Luckily, OpenZFS already compiles in userland for the "zdb" utility so not much work was required on that side. There were certain amount of desperation applied when we came across hurdles, so possibly some assumptions we formed are not correct. (We didn't go back and confirm the problem after it started working).

in iOS26.4, after installing the app for the first time, opening the app and clicking on the UITextField input box will trigger the system to pop up the network permission application interface. This issue did not exist before iOS 26.3, only in iOS 26.4. This is a fatal bug where the network permission request box should not pop up when the developer has not called the network related API.

Outside of a very narrow happy path, Filesystem Extensions can leave the system in a bad state that can be hard to get out of: For example, a hanging Volume call can leave any process attempting to read from it permanently stuck (no timeouts, process is unkillable, ps / pkill / pgrep themselves may start hanging). When it comes to installation, FS AppEx are registered with two subsystems afaict (LaunchServices and fskitd) — those two states can get out of sync, and typically cannot be repaired manually. In particular, the only way to reset fskit state seems to be to kill it (notably, disabling SIP is required to launchctl kickstart it, but sudo killall fskit works like a charm). AppEx installed/enabled state seems to be per-user. When mounting as root, fskit queries a different state (implying that a FS may be enabled for an admin user ie. John Doe, but not from the perspective of a root SMAppService — even when using launchctl asuser/bsexec to attempt to replicate the security context of John Doe's login session at their behest). The actual question here is hard to formulate... are there any plans to make FS AppEx behave more like the rest of the platform? More consistent/helpful/centralized logging (it is currently spread across multiple targets and as much as the "boom" and emojis are entertaining, on day 14 of debugging transient failures, it does get old). Making a .pkg installer with an FS AppEx inside prevents the AppEx from being installed through the prescribed happy path (simply having the user launch the containing .app) since it gets pre-registered via LaunchServices. In fact, building an AppEx through XCode automatically registers it with ls, making real-world testing of AppEx really difficult... The sheer breadth of subtle challenges in shipping a working, reliable FSKit-based filesystem on macOS has prevented me so far from filing tidy, individual bug reports, and for this I apologize, but: if you have a roadmap of "reliability improvements / behavior normalization / edge case resolutions" to share today, I'm sure many of us would be eager to read it.

Hello everyone. I use Translation Framework in my application. During development everything was fine, Translation framework worked well, but after two or three days of using the production version (that was published in AppStore and available for others also!) - my application stopped working. Translation framework gives errors: Error sending 1 paragraphs Error Domain=TranslationErrorDomain Code=16 "Translation failed" UserInfo={NSLocalizedDescription=Translation failed, NSLocalizedFailureReason=Offline models not available for language pair} Failed to translate input 0; returning error: Error Domain=TranslationErrorDomain Code=16 "Translation failed" UserInfo={NSLocalizedDescription=Translation failed, NSLocalizedFailureReason=Offline models not available for language pair} Received unbridged NSError to API, converting to .internalError: Error Domain=TranslationErrorDomain Code=16 "Translation failed" UserInfo={NSLocalizedDescription=Translation failed, NSLocalizedFailureReason=Offline models not available for language pair} Once again - it worked when I developed it, it was released on the AppStore, and suddenly it stopped working!

We are stuck in AppStoreConnect limbo. We have a new subscription group + two Subscriptions in Ready To Review state in appstoreconnect, but Apple Review rejected our latest app version because they weren't included with the version. Our app version has been rejected for a few issues before this which maybe broke something. When I go to edit the version, there is no Subscriptions & Purchases section to add them for review. I tried editing the subscriptions and subscription group localization to see if that got it out of Waiting For Review state or showed the version section but no luck. So we can't add the Subscriptions for review and we are rejected from App Review if we don't. I submitted an Apple support email 8 days ago and haven't received any response. Does anyone know of a way to get this unblocked?

I’m building a macOS app that displays a large grid of image thumbnails similar to Photos. What is the recommended way to determine whether a file is locally available/downloaded without making a blocking call to the filesystem for every thumbnail? Thanks!

Hello everyone, I am using an iPhone 11 Pro running iOS 27 Beta 1. Since installing the beta, the message "Indexing in Progress" has remained active for approximately 7 days and never completes. I have already tried: Restarting the iPhone multiple times Keeping the device connected to power overnight Keeping Wi-Fi enabled Disabling Low Power Mode Ensuring enough free storage space Despite trying all of these steps, the indexing process is still stuck and does not finish. Is anyone else experiencing the same issue on iOS 27 Beta 1? At this point, I believe this may be a bug affecting Spotlight/Search indexing. Any feedback would be appreciated. Thank you.

Hi, my apps are build the way, that it always should take the localization based on the system language. I had/have the issue, that sometimes it falls back to english. I assume, that the configured user language isn't fully localized. you can see that especially when using date and time formats and calendars. how do I prevent that? or: how is the correct way to implement localization in an app? thanks in advance

Hello there, We are looking at resolving audio co channel interference resolution... Googles Gemini is saying ... Data Volume: A production-grade model capable of cleanly untangling mixed broadcast channels requires between 5,000 and 10,000 hours of verified audio data to map out diverse vocal characteristics and varying signal strengths. Synthetic Data Generation: Rather than recording manual interference loops, the dataset can be entirely synthetic. Clean speech profiles are digitally mixed using Python pipelines that emulate a GroupTalk channel environment. This includes applying standard codecs, simulating varying packet loss concealment (PLC) artifacts, and injecting real-world environmental noise (like bridge wind or engine room hum). Do you believe that ? Warmest regards, Ken

Hi, our Mac app uses AUHAL for audio output. The data we’re playing has channels laid out in the WAVE default ordering (this is the same order as Core Audio’s AudioChannelBitmap). Playing this data usually results in the correct channel playing through the correct speaker, but there are cases where it does not: Outputting audio over HDMI usually results in the Center and LFE channels being swapped Or “Configure Speakers” in Audio MIDI Setup.app can be used to change the speaker<->channel mapping (i.e. even swapping L/R on a 2ch stereo setup), but this does not affect our app’s audio I’ve found that getting kAudioUnitProperty_AudioChannelLayout on an output unit returns the speaker<->channel mapping as set up in Audio MIDI Setup (i.e. it shows that Center/LFE swap, or if L/R are swapped). My question: is it possible to have Core Audio do the channel remapping between the WAVE default ordering, and the speaker<->channel mapping as returned by kAudioUnitProperty_AudioChannelLayout? I have tried setting kAudioUnitProperty_AudioChannelLayout on the input unit, and didn’t see a change. I’ve also tried to set kAudioOutputUnitProperty_ChannelMap on the output unit but cannot get it to work. Or do I need to remap the channels myself before giving samples to Core Audio?

Hello, Starting in iOS 17, our application started having some issue publishing to our video session. More specifically the video capture seems to be broken in some, but not all sessions. What's troubling is that we're seeing that it fails consistently every 4 sessions. It also fails silently, without reporting any problems to the app. We only notice that there are no frames being rendered or sent to the remote devices. Here's what shows-up in the console: <<<< FigCaptureSourceRemote >>>> Fig assert: "! storage->connectionDied" at bail (FigCaptureSourceRemote.m:235) - (err=0) <<<< FigCaptureSourceRemote >>>> Fig assert: "err == 0 " at bail (FigCaptureSourceRemote.m:253) - (err=-16453) Anyone seeing this? Any idea what could be the cause? Our sessions work perfectly on iOS16 and below. Thanks

Hello. I have a problem with the FoundationModels adapter and the Apple-hosted managed asset pack via TestFlight. I have created an adapter that works fine locally by creating a model via (fileURL: URL) on a real device, but I cannot create a model using background assets by downloading the adapter via TestFlight. Every time I try to get an adapter, the creation of the adapter is interrupted by the compatibleAdapterNotFound error. The aar. archive i created using a special command - xcrun ba-package foundation-models package --adapter-path aurelius1.fmadapter --asset-pack-id fmadapter-aurelius1-9799725 --output-path ./aurelius1.aar --platforms iOS --on-demand\ after that, I replaced "OnDemand": null with "OnDemand": {} in the manifest so that the Transporter could send my archive to the App Store Connect. I followed all the recommendations in this topic - https://origin-devforums.apple.com/forums/thread/823148 ...but unfortunately unsuccessfully I would appreciate any help in solving this problem. here is the code that I use in my app -

I am testing my app with storekit2 and all data configured in alppstoreconnectr but i would like to know how to test on simulation and configure Promo code and OffersThanks