In MetricKit, a metric payload comes in with a time range which usually means it contains multiple launches/sessions. How can we relate things that will change between launches or sessions such as pid and lowPowerModeEnabled from the metadata. Will there be multiple payloads for each unique value or is there some other way to use this?

Hi, I'm investigating what looks like possibly nondeterministic behavior when linking large iOS app binaries. I do not have a concise reproduction of the issue yet, but am trying to hunt down possible leads. In particular, the problem appears to surface when invoking clang to link a binary and the resulting order of the 'branch island' instructions appears to be random each time the binary is linked (as shown by the link map output). I was wondering if anyone with insight into the linker's current implementation could shed light on whether that is expected, and if there is anything that can be done to prevent it. FWIW, it seems like it might be size-dependent as smaller app binaries don't appear to exhibit the same behavior. I'd be glad to share more specifics and hopefully a reproduction if I can ever find one eventually. Some environment info (Xcode 16.4 toolchain): clang -v: Apple clang version 17.0.0 (clang-1700.0.13.5) Target: arm64-apple-darwin24.6.0 Thread model: posix InstalledDir: /Applications/Xcode-16.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin ld -v: @(#)PROGRAM:ld PROJECT:ld-1167.5 BUILD 01:45:05 Apr 30 2025 configured to support archs: armv6 armv7 armv7s arm64 arm64e arm64_32 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em will use ld-classic for: armv6 armv7 armv7s i386 armv6m armv7k armv7m armv7em LTO support using: LLVM version 17.0.0 (static support for 29, runtime is 29) TAPI support using: Apple TAPI version 17.0.0 (tapi-1700.0.3.5)

I've encountered a strange issue with Swift and I wonder if this is a compiler error or if I didn't understand something correctly. The following sample code shows a weird issue (please ignore that the demo code itself would not make that much sense in this form, it's just the version from a big and more complicated project, where this would make more sense): class Test { var data: [String:[String:String]] = [:] func test() { let setValue: ((String, String, String) -> Void) = { [weak self] key, id, value in if self!.data[key] == nil { self!.data[key] = [:] } let oldValue = self!.data[key]![id] if oldValue == nil { self!.data[key]![id] = value } } setValue("0", "1", "2") } } When changing the "data" dictionary through the closure within the "test()" function, everything works as expected until the "if" condition where the oldValue is checked against nil. If I set a break point to this condition, the Xcode debugger tells me that oldValue is nil (which is expected), but the code within the if condition is NOT executed. The comparison oldValue == nil should be be true (because oldValue is actually nil), but the compiler seems to assume something else. But If I do not user "self!" but instead "self?" then it does work as expected and the code within the if condition is executed. What I am missing here? Is this the correct behavior or a compiler bug?

With the latest (26) version of Apple's developer tools, is there a way to manually attach a debugger (other than lldb) to an iOS app launched with "devicectl device process launch --start-stopped"? In the past, this was possible via the ios-deploy third-party tool (now defunct), which provided a debugserver port. This information is notably missing when using devicectrl – although the process ID of the launch process is provided, and the tool is clearly aimed at letting you launch and attach to processes from the command line. lldb can, of course, attach via its built-in support for this using the device set of commands. But I'm explicitly looking for a way to attach my own debugger via the GDB-compatible debug proxy.

What happen when a deprecated method is used in project submitted to Apple Store Connect ? Generally the Apple documentation give the alternative like "Use ***: instead" but sometime the documentation do not suggest anything. What to do when a such Warning happen ?

I’m developing an app that uses Family Controls to block other apps. I’ve already received approval from Apple for the entitlement, and everything works perfectly when I run the app from Xcode on a physical device. However, when I upload the same build to TestFlight, the app installs and runs, but the Family Controls functionality doesn’t work — it seems like the entitlement isn’t being applied in the TestFlight version. So I’d like to ask: 👉 Do Family Controls entitlements work automatically on TestFlight builds, or is there any additional step required to enable them?

In SF Symbols 7 (115), there are 458 symbols missing Availability info. I only discovered this after using one that didn’t appear in iOS 18 but does in iOS 26. Questions: Are there plans to add Availability info for all symbols? If the field is blank, is there a safe latest-OS version we can assume? I realize managing 7,000+ icons is tough, but missing info like this makes development frustrating. It doesn't help that there's no build warning when a named image isn't found, it just defaults to the text label. Screenshot Screenshot of SF Symbols 7 showing three symbols missing Availability info. The symbol ellipsis.circle.badge is selected and its properties pane also shows no Availability info.

In our App we have a need to open Apple Developer App from our iOS App to guide user to Developer App. But looks like there is no confirmed URL Scheme provided. Can you help on this.

In the beta of Icon Composer, I see macOS, iOS, and watchOS icons, but there is nothing about visionOS and tvOS. Those icons are particularly hard and it would be great if this app worked for developing icons for all Apple platforms. I tried asking this in a WWDC group lab, but they didn't get to it and suggested posting to the forum.

I observed the following problem: A scientific code to perform Reverse Monte Carlo simulations (‘rmcxas’) compiled with the most up to date version of gcc/gfortran and Xcode including command line tools on Mac OS Sequoia 15.4 on a Macbook air with M4 processor generates the following problem upon starting it in a terminal: dyld[10154]: dyld cache '(null)' not loaded: syscall to map cache into shared region failed dyld[10154]: Library not loaded: /usr/lib/libSystem.B.dylib Referenced from: <0144F82E-003C-37A9-A544-9AE6336E549B> /Users/markuswinterer/bin/rmcxas Reason: tried: '/usr/lib/libSystem.B.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/lib/libSystem.B.dylib' (no such file), '/usr/lib/libSystem.B.dylib' (no such file, no dyld cache), '/usr/local/lib/libSystem.B.dylib' (no such file) zsh: abort rmcxas This occurs only about every 5th time the code is started. Help would be highly appreciated.

In the archived documentation for Distribution Definition files (https://developer.apple.com/library/archive/documentation/DeveloperTools/Reference/DistributionDefinitionRef/Chapters/Distribution_XML_Ref.html), the allowed-os-versions and os-version element are partially documented. I have a few questions about these elements: allowed-os-versions The documentation states: Availability: Available in OS X v10.6.6 and later. Has this element always worked correctly in the past? I'm asking because it does not seem to work correctly on OS X v10.14 for the min attribute of a sub os-version element. os-version The documentation states: This element is designed for you to use a specific OS version number for the min attribute, and a major OS version number for the before attribute. The expectation is that you will know an exact minimum version but not an exact major version. This keeps you from having to guess the last minor revision before the next major revision, as you would have to do if the before attribute were inclusive. This is quite confusing because the documentation never explicitly says what a specific or major OS version number is. Is specific major.minor.patch or major.minor? What is major? major or major.minor? As the documentation was created at a time where the OS version scheme was: 10.minor.patch (and minor was actually the major) and we are now in an era where the OS version is major.minor.path, this is even more confusing. I would also be curious to know what the major version is officially supposed to be for macOS Tahoe in this case. 16 or 26? Generally speaking, this documentation is missing examples for a lot of the elements. Also why is there a tag for InstallerJS and not one for Installation in the Developer Forums?

Hello, I'm developing a macOS application that uses the Virtualization framework to run Linux virtual machines (specifically Ubuntu and Fedora) on Apple Silicon Macs. I've noticed that while the macOS host properly supports all trackpad gestures, the two-finger tap gesture for right-click does not work within the Linux guest. Only the primary click is recognized. This behavior is consistent across different Linux distributions and desktop environments (GNOME, KDE, etc.). I would like to confirm: Is the macOS Virtualization framework expected to support trackpad gestures such as two-finger tap for right-click within Linux guest VMs? If not currently supported, is there a known workaround to enable right-click functionality for the trackpad in Linux guests? (e.g., configuration changes in the VM, Linux kernel input modules, or framework-level adjustments.) Any insights or suggestions would be greatly appreciated. Thank you!

Hi there, I am trying to create my first iOS app using Visual Studio (Win 11) and .NET MAUI. I created a developer account and if I want to start the debugger with my local device, VS forces me to Configure Automatic Provisioning. I can select my configured account but the operation fails (see screenshot). I have no idea what is going wrong and I cannot find any setting in the developer account to fix this problem. Can anyone help me out, what is wrong and how to fix, thx!

Hi Team, I’ve tried downloading the EnableBluetoothCentralMatterClientDeveloperMode.mobileconfig certificate from multiple sources, but all the links I found point to expired versions. Could you please help me with the URL to the latest version of this certificate? Here are the links I’ve already tried, but none of them worked: https://project-chip.github.io/connectedhomeip-doc/guides/darwin.html#profile-installation https://github.com/project-chip/connectedhomeip/blob/master/docs/guides/darwin.md Apple Site Looking forward to your support. Thanks, Mantosh Kumar

Crash dump: `Crashed Thread: 0 tid_103 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGILL) Exception Codes: KERN_PROTECTION_FAILURE at 0x000000016d3bfea0 Exception Codes: 0x0000000000000002, 0x000000016d3bfea0 Termination Reason: Namespace SIGNAL, Code 4 Illegal instruction: 4 Terminating Process: Unity [7873] VM Region Info: 0x16d3bfea0 is in 0x169bbc000-0x16d3c0000; bytes after start: 58736288 bytes before end: 351 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL mapped file 169b00000-169ba8000 [ 672K] rw-/rwx SM=PRV Object_id=4d22156e GAP OF 0x14000 BYTES ---&gt; STACK GUARD 169bbc000-16d3c0000 [ 56.0M] ---/rwx SM=NUL stack guard for thread 0 Stack 16d3c0000-16dbbc000 [ 8176K] rw-/rwx SM=SHM thread 0 Thread 0 Crashed:: tid_103 Dispatch queue: com.apple.main-thread 0 libsystem_platform.dylib 0x1932ee7ac _platform_memset + 108 1 libmonobdwgc-2.0.dylib 0x33977abdc GC_clear_stack_inner + 60 2 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 3 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 4 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 5 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 6 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 7 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 8 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 9 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 10 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 11 libmonobdwgc-2.0.dylib 0x33977abf8 GC_clear_stack_inner + 88 12 libmonobdwgc-2.0.dylib 0x33976b518 GC_clear_stack + 76 13 libmonobdwgc-2.0.dylib 0x33973c074 mono_gc_alloc_obj + 112 14 libmonobdwgc-2.0.dylib 0x3396e0db4 mono_object_new_specific_checked + 72 15 libmonobdwgc-2.0.dylib 0x3396e116c ves_icall_object_new_specific + 28`

I received this message when trying to submit a build using Rork.com. Can anyone tell me what this is and how to fix it? There is a problem with the request entity - You are not allowed to create 'iOS' profile with App ID 'XXXXXXXX'. ✖ Failed to create Apple provisioning profile Error: build command failed.

Q. Is there a plan to finally document the PackageInfo file format used in .pkg flat package? The man page for pkgbuild is not really useful to understand the different options. It does not seem to make sense to have an official documentation for the Distribution Definition file but not for the PackageInfo file.

Hello, I have an iphone but not an ipad Actually a relative has an iPad. The problem I encoutered was when i was testing an app that I had built prior (so I had the ipa file) but no acces to Xcode. The thing is when I wanted to test it on my iphone, everything WENT SMOOTH and ok. When I tried on iPAD, I encounteed the problem I could not unlock the hidden "developer mode" option in any way, I tried so many things, checked and rechecked, the option was and stayed hidden, I could not activate it. Therefore I could not test the app. In the apple store I was required to give a screenshot for iPAD but that failed. because I could not produce ANY, since I could not run my app on iPAD. I actually have no idea how I activated the ability to turn on the developer mode on my iphone, it was just there and I activated it perhaps because I had added the email of my iphone to the developer account somehow? somehwere? But for iPAD I just could not find a way to do it, don't know if adding it somewhere could trigger something on the ipad to allow it to show the developer mode option so I can activate it finally? Anyway, I tried things I read on internet, methods that mention how to activate the developer mode ability on an ios devide though WINDOWS, there were 2 but one I did not trust much, and even I think i tried it and in the end it did not work for some incompatibility making that method obsolete or something? the other I am not sure but probably same idea. I would like to know, how to activate the ABILITY to SHOW the option to activate the developer mode on iPAD (or any other device but for now I am focuson on iPad) please, and without using macbook or xcode!? Could Apple or anyone offer some guidance? That would help a fellow developer. Thank you. Ps. No I cant get the mac or xcode for now (but hopefully in a far future, but for now I can't). Thanks

I can see that a MacOS VM guest running on top of an Apple Silicon MacOS host has GPU acceleration - indicating GPU sharing capabilities for the hardware. Is there also a way to have GPU acceleration in Linux guests (with Vulkan/Mesa drivers)?

My book env: MacBook Air Apple M4 15.6.1 (24G90) I installed JDK hs_err_pid6813.log by sdkman and homebrew, but when I ran java, os crashed: /opt/homebrew/o/openj/libexec/openjdk.jdk/Contents/Home/bin | stable ./javac --verison ABRT | 12:32:20 # # A fatal error has been detected by the Java Runtime Environment: # # SIGBUS (0xa) at pc=0x000000010211b340, pid=7237, tid=9987 # # JRE version: (21.0.7) (build ) # Java VM: OpenJDK 64-Bit Server VM (21.0.7, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, bsd-aarch64) # Problematic frame: # V [libjvm.dylib+0x35f340] CodeHeap::allocate(unsigned long)+0x15c # # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # An error report file with more information is saved as: # /opt/homebrew/Cellar/openjdk@21/21.0.7/libexec/openjdk.jdk/Contents/Home/bin/hs_err_pid7237.log # # [1] 7237 abort ./javac --verison Does that mean I have to reinstall OSX?