I'm adapting my app on iOS 26, and I just found out withAnimation fuction's completion not called in some cases. The same code on iOS 18 was fine. The problem is very fatal, When you check the api, it saids "The completion callback will always be fired exactly one time"，but this time it doens't work. I'm using the Xcode Version 26.0 (17A321) RC1，still not test on a real devcie yet.

My app start up has became horrid. It takes 1 minute to open SQLlite database for my rust core. Impossible to work... I have Address Sanitizer, Thread Perf Checker and Thread Sanitizer disabled...

I have recently restarted an old code base. The app uses App Groups to communicate with network and endpoint system extensions. For some reason, in Xcode > Target > Signing & Capabilities the app groups are showing up with red text. I feel the red signifies a problem, but I cannot figure out what it is. The app compiles and runs, but I feel there is problem that I am missing. Any idea why App Group names would be displayed in red?

I've created a new project in Xcode. I'm running the Xcode 16.4 and MacOS 15.5. I'm trying to run my barebones project on my iPhone 16 (I'm just getting started). I turned on developer mode on my iPhone and went through the whole process. But in the Signing & Capabilities of my project under status I see two errors... There is a problem with the request entity A device with number 'XXXX8801C' already exists on this team. Provisioning profile "iOS Team Provisioning Profile: [MyBundleID]" doesn't include the currently selected device "My iPhone" (identifier XXXX8801C). I noticed in the devices on the developer portal that my device is showing as "Processing." I feel ike it's stuck. But I can't figure out how to clear it all out and try again. It's been 24 hours since this error came up. I've tried to clear trusted computers on the iPhone. I've deleted the "Derived Data" folder. I've removed my developer account from Xcode and added it again. I've restarted both my Mac and my iPhone multiple times. I've noticed it asked to authorize my computer twice. When I clear the authorized computers and then plug the phone back in it asks twice again. So I'm not sure if this is the issue? No idea why it asks twice but I'm only ever able to respond to the second request as the first request gets blocked in the UI by the second requests if that makes sense? I'm also not able to turn off developer mode on my iPhone. The switch isn't there as the docs state it should be. So again, I feel like this is the phone and the developer portal stuck causing the problem. Note: I saw someone else had encountered this problem and I replied to it and boosted it. But it looks like it was posted in 2017? Hence this new post.

Hi, I'm experiencing a super weird and unexpected issue using Icon Composer (Version 1.0 (40)) and Xcode 26 beta 7. I have an icon that includes some minimal text in the icon, as part of the branding of the app. The text is an SVG layer in Icon Composer. Icon Composer has no idea this is text, just a regular SVG layer. When I import the resulting .icon file into Xcode, it appears correct in the Xcode preview. However, when building the app and installing it on the iOS 26 simulator, the font of the text in the icon changes (to the system default font?). It is also cropped, cut off, and off-center. I replicated this with a simple standalone icon and clean project. Is anyone else seeing this?

Hello Developers, I am currently developing a Flutter application where I am implementing both push notifications (for messages) and VoIP call notifications. The implementation works perfectly fine on Android. However, I am facing issues specifically on iOS in the following scenarios: Terminated State: When the app is terminated on iOS, neither call notifications nor message notifications are received. In the background state, things partially work, but in the terminated state, nothing comes through. Debug vs Production: In Debug mode, everything works as expected (both message and call notifications). Once I release the app to TestFlight (Production), the notifications completely stop working: Message notifications are not delivered at all. Call notifications also fail to appear in terminated state. Configuration Details: I have already configured APNs with .p8 key in Firebase. The required capabilities (Push Notifications, Background Modes → Remote notifications, VoIP, etc.) are enabled in Xcode. I also updated the AppDelegate.swift / Notification handling code for production environment. Despite these steps, the same issue persists in production/TestFlight. It seems like the issue is specifically related to production environment handling on iOS, since everything works in debug. My Question: What could be causing push notifications and call notifications to not work in the terminated state on iOS, especially in production/TestFlight builds? Are there additional configuration steps required for APNs, VoIP, or background handling in production that differ from debug mode? Any guidance or similar experiences would be really helpful. Thanks in advance for your support.

I currently do not want to upgrade to macOS 26, but I still want to install the latest Xcode. Is it required to install macOS 26 if I were to get Xcode 26?

Does anyone have problems with the Pull Request functionality in Xcode 26 RC? I can’t create a new pull request inside Xcode (it always redirects me to the web page). I can’t see changes within an existing pull request (I only see the PR name; I can’t even approve it or request changes). I’ve had this problem since beta 1 of Xcode 26. Does anyone know how to fix this?

Under Xcode 26 beta 3 I'm trying to build a project which uses Metal. I've installed the Metal Toolchain 26.0 under Settings -> Components, but when I start a build it fails during the "Prepare build" step with the following error (repeated many times): stat(/var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.1.5276.7.Pb9SLL/Metal.xctoolchain/usr/bin/clang): No such file or directory (2) I've confirmed that there is in fact no 'clang' binary in that directory. I've tried using xcode-select to set the Xcode 26 Beta app as the active developer directory, and xcodebuild -version shows: Xcode 26.0 Build version 17A5276g Any ideas on other things to try?

A new version of the Configuring your app to use alternate app icons sample code is available for download. The sample uses Icon Composer files and supports iOS 18 or later.

I am trying to validate my update for my app to be ready for iOS 26 with the new Icon Composer .icon file. Everywhere I read says that the old AppIcon in the assets folder wouldnt be used and to just drop the .icon file in the project navigator and link it properly. I do that and its still asking for a .png file; I add the 1024x1024 .png file and its still not working. I am very lost and dont know where to go from here I have both the .icon and .png app icons in there. My app deployment target is at iOS 26, Xcode Project format 16.3 (I dont see 26 so assuming 16.3 is the highest). I feel I have done all the things, and advice? Thanks in advance!

I am having similar problems to this guy on Stack Overflow over a year ago: https://stackoverflow.com/questions/77627852/functions-of-iouserscsiperipheraldevicetype00-class-in-scsiperipheralsdriverkit There are also a few questions on this forum about this object, none of which have answers. I can get my driver to match and instantiate, but nobody calls my UserDetermineDeviceCharacteristics (which does nothing, just returns kIOReturnSuccess) I can attempt to call UserSuspendServices(), UserResumeServices() or UserReportMediumBlockSize() and all of them return kIOReturnUnsupported. It doesn't matter if I've unmounted the disk or not. Is the custom driver supposed to be instantiated beside the kernel's IOSCSIPeripheralDeviceType00, or should it replace it? What should its IOProviderClass be? What should its IOClass be - IOUserService, or something else? see FB19678139 and FB19677920

My code was running with with the version before Xcode 26 RC. I recompiled one last time. Now I'm getting the error: A server with the specified hostname could not be found let now = Calendar.current.date(byAdding: .hour, value: 1, to: Date())! let nextWeek = Calendar.current.date(byAdding: .day, value: 14, to: Date())! do { let (dailyForecast, hourlyForecast, currentWeather, alertWeather) = try await weatherService.weather(for: thisLocation, including: .daily, .hourly(startDate: now, endDate: nextWeek), .current, .alerts) Suggestions?

I am on the macOS 26 beta, and I am receiving this error. I was able to install before, then I decided to uninstall, now I need it again.

The operation couldn’t be completed. (IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $123069a90).DownloadError error 3.) Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $123069a90).DownloadError Code: 3 User Info: { DVTErrorCreationDateKey = "2025-01-31 01:58:50 +0000"; } There was an error processing the asset. Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $123069a90).DownloadError Code: 3 System Information macOS Version 15.3 (Build 24D60) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-01-31T09:58:50+08:00

Error reported is The product archive is invalid. The value of the CFBundleDocumentTypes key in the Info.plist must be an array of dictionaries, with each dictionary containing at least the CFBundleTypeName key. (ID: 8fc7f696-a7f3-410d-b228-a220594a9edb) The info.plist is :

Will RC be allowed to upload to App Store Connect? I have tried a couple of times with 17A321 and I keep getting unsupported SDK or Xcode version. Submitted feedback FB20178551

I didn't check this out specifically on earlier betas, but AI is allowed to create new .swift files, yes? I'm only seeing proposals to create files (as opposed to code which it can change automatically), and the CREATE FILE button to the right of any proposed file creation does nothing. Next I'll mention running local models, but file creation does not seem to happen for neither ChatGPT nor any local model. Also I'm experimenting with LM Studio and it is reporting my client is timing out. So I guess Xcode is not waiting long enough for a response? The local models are slow, yes. But is there a setting for the AI timeout value? I told the LLM "Every 1 minute send me an update so I know you are still working so my client does not time out" which seems to have no visible effect, it hasn't timed out yet, but I don't visibly see that message.

Works fine to show achievements but not Leaderboards. Launching the Xcode Project directly on device, loading remote (not yet live) leaderboards without issue and submitting scores to them works fine as well. I was hoping that rather than going through the app store distribution leaderboards with all of their limitations I could instead run it locally and add scores to test the behaviour, but even though I can edit the achievements progress locally, I can't see any leaderboards being available... One out of 3 leaderboards started beginning of this september while the other 2 leaderboards won't launch until the game launch.

I want to remove iPad from my app's device family but don't know how to do that. Previously I could do that by check boxes. Now I don't find that function. Please help. Thanks.