At WWDC25 we launched a new type of Lab event for the developer community - Group Labs. A Group Lab is a panel Q&A designed for a large audience of developers. Group Labs are a unique opportunity for the community to submit questions directly to a panel of Apple engineers and designers. Here are the highlights from the WWDC25 Group Lab for Developer Tools. Will my project codebase be used for training when I use Xcode's intelligent assistant powered by cloud-based models? When using ChatGPT without logging in, your data will not be used to improve any models. If you log in to a ChatGPT account, this is based on your ChatGPT account settings, which allows you to opt-out (it defaults to on). When using Xcode with accounts for other model providers, you should check with the policies of your provider. And finally, at no point will any portion of your codebase be used to train or improve any Apple models. We'd love to make our SwiftUI Previews (and soon, Playgrounds) as snappy as possible. Is there any way to skip certain build steps, such as running linters? It seems the build environment is exactly the same (compared to a debug build), but maybe there's a trick. Starting with Xcode 16, SwiftUI previews use the exact same build artifacts as the regular build. The new Playgrounds support in Xcode 26 uses these build artifacts too. Shell script build phases are the most common thing that introduces extra build time, so as a first step, try turning off all shell script build phases (like linters) to get an idea if that’s the issue. If those build phases add significant time to your build, consider moving some of those phases into asynchronous steps, such as running linters before committing instead of on every build. If you do need a shell script build phase to run during your build, make sure to explicitly define the input and output files, as that is a huge way to improve your build performance. Are we able to provide additional context for the models, like coding standards? Documentation for third party dependencies? Documentation on your own codebase that explains things like architecture and more? In general, Xcode will automatically search for the right context based on the question and the evolving answer, as the model can interact multiple times with your project as it develops an answer. This will automatically pick up the coding style of the code it sees, and can include files that contain architecture comments, etc. Beyond automatic context, you can manually attach other documents, even if they aren't in your project. For example, you could make a file with rules and ideas and attach it, and it will influence the response. We are very aware of other kinds of automatic context like rule files, etc, though Xcode does not support these at this time. Once ChatGPT is enabled for Coding Intelligence in Xcode 26, and I sign into my existing ChatGPT account, will the ChatGPT Coding Intelligence model in Xcode know about chat conversations on Xcode development done previously in the ChatGPT Mac app? Xcode does not use information from other conversations, and conversations started in Xcode are not accessible in the web UI or ChatGPT app. Is there a plan to make SwiftUI views easier to locate and understand in the view hierarchy like UIKit views? SwiftUI uses a declarative paradigm to define your user interface. That allows you to specify what you want, with the system translating that into an efficient representation at runtime. Unlike traditional AppKit and UIKit, seeing the runtime representation of SwiftUI views isn't sufficient in order to understand why it's not doing what you want. This year, we introduced a SwiftUI Instrument that shows why things are happening, like view re-rendering. Is it possible to use the AI chat with ChatGPT Enterprise? My company doesn't allow us to use the general ChatGPT, only the enterprise version they have setup that prevents data from being leaked Yes, Xcode 26 supports logging into any existing ChatGPT account, including enterprise accounts. If that does not meet your needs, you can also setup a local server that implements the popular chat completions REST API to talk to your enterprise account how you need. Now that Icon Composer is here, how does it complement or replace existing vector design tools such as Sketch for icon design? Icon Composer complements your existing vector design tools. You should continue to create your shapes, gradients, and layers in another tool like Sketch, and compose the exported SVG layers in Icon Composer. Once you bring your layers into Icon Composer, you can then use it to influence the translucency, blur, and specular highlights for your icon. What’s one feature or improvement in the new Xcode that you personally think developers will love, but might not immediately discover? Maybe something tucked away or quietly powerful that’s flown under the radar so far? One feature we're particularly excited about is the new power profiler for iOS, which gives you further insights into the energy consumption of your app beyond what was possible with the energy instrument previously. You can learn more about how to use this instrument and how it can help you greatly reduce your apps battery usage in the documentation, as well as the session Profile and optimize power usage in your app. There were also improvements in accessibility this year with Voice Control, where you can naturally speak your Swift code to Xcode, and it understands the Swift syntax as you speak. To see it in action, take a look at the demonstration in What’s new in Xcode 26. We have a software advisory council that is very sensitive to having our private information going to the cloud in any form. What information do you have to help me guide Xcode and Apple Intelligence through the acceptance process? One thing you can do is configure a proxy for your enterprise that implementing the popular Chat Completions API endpoint protocol. When using a model provider via URL, you can use your proxy endpoint to inspect the network traffic for anything that you do not want sent outside of your enterprise, and then forward the traffic through the proxy to your chosen model provider. Are there list of recommended LLMs to use with Xcode via Intelligence/Local? I've tried Gemma3-12B, but.. I hope there are better options? Apple doesn't have a published list of recommended local models. This is a fast-moving space, and so a recommendation would become out of date very quickly as new models are released. We encourage you to try out the local model support in Xcode 26 with models that you find meet your needs, and let us and the community know! (continued below)

I'm trying to debug an issue with the Valgrind tool Helgrind. This is on masOS 11 (I've also seen it on 12, probably the same for other macOS versions). Here is the testcase. #include <pthread.h> #include <string.h> #include <assert.h> #include <errno.h> int main(void) { pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; pthread_cond_t cond = PTHREAD_COND_INITIALIZER; int res; // This time has most definitely passed already. (Epoch) struct timespec now; memset(&now, 0, sizeof(now)); res = pthread_mutex_lock(&mutex); assert(res == 0); res = pthread_cond_timedwait(&cond, &mutex, &now); assert(res == ETIMEDOUT); res = pthread_mutex_unlock(&mutex); assert(res == 0); res = pthread_mutex_destroy(&mutex); assert(res == 0); res = pthread_cond_destroy(&cond); assert(res == 0); } The error that I'm getting from Helgrind is ==56754== Thread #1 unlocked a not-locked lock at 0x1048C7A08 ==56754== at 0x10020E2F9: mutex_unlock_WRK (hg_intercepts.c:1255) ==56754== by 0x10020E278: pthread_mutex_unlock (hg_intercepts.c:1278) ==56754== by 0x7FF80F526813: _pthread_cond_wait (in /usr/lib/system/libsystem_pthread.dylib) ==56754== by 0x10020E812: pthread_cond_timedwait_WRK (hg_intercepts.c:1465) ==56754== by 0x10020E6A8: pthread_cond_timedwait (hg_intercepts.c:1512) ==56754== by 0x100003DD2: main (cond_timedwait_test.c:18) ==56754== Lock at 0x1048C7A08 was first observed ==56754== at 0x10020DE91: mutex_lock_WRK (hg_intercepts.c:1009) ==56754== by 0x10020DD68: pthread_mutex_lock (hg_intercepts.c:1031) ==56754== by 0x100003D7D: main (cond_timedwait_test.c:16) ==56754== Address 0x1048c7a08 is on thread #1's stack ==56754== in frame #5, created by main (cond_timedwait_test.c:7) If I turn on extra tracing then on FreeBSD the Helgrind pthread traces correspond to the C source. On macOS I see an extra mutex. << pthread_mxlock 0x7ff850c41 :: mxlock -> 0 >> << pthread_mxunlk 0x7ff850c41 :: mxunlk -> 0 >> ^^ I don't know what this mutex is << pthread_mxlock 0x1048c7a08 :: mxlock -> 0 >> ^^ this is the user mutex << pthread_mxlock 0x7ff850c41 :: mxlock -> 0 >> << pthread_cond_timedwait 0x1048c79d8 0x1048c7a08 0x1048c79c0<< pthread_mxunlk 0x7ff850c41 :: mxunlk -> 0 >> ^^ pthread_cond_timedwait unlocking the non-user mutex << pthread_mxlock 0x7ff850c41 :: mxlock -> 0 >> << pthread_mxunlk 0x7ff850c41 :: mxunlk -> 0 >> << pthread_mxunlk 0x1048c7a08 [error here] :: mxunlk -> 0 >> << pthread_mxlock 0x1048c7a08 :: mxlock -> 0 >> << pthread_mxlock 0x7ff850c41 :: mxlock -> 0 >> cotimedwait -> 60 >> In these traces the "-> 0" is the return code, showing that all of the calls succeeded. I need to do more debugging inside Helgrind. In the traces above I only see the user mutex being locked and then unlocked. Can anyone explain why I'm seeing an extra mutex in there? I'll have a poke around the XNU source

On macOS Tahoe, our application using the Endpoint Security Framework (ESF) observes that during file copies through finder application, DesktopServicesHelper unlinks the source file if the ESF authorization response is delayed for ~5 seconds, even though the authorization event deadline remains 15 seconds, indicating that the process does not wait for the full ESF deadline before deleting the file. Before Tahoe, we didnt see this behaviour.

I’m seeing what looks like a change or possible bug in Xcode when creating a new Swift Playground. When I create a Swift Playground using Xcode (File → New → Playground), the project is generated without an Assets folder. I’ve reproduced this multiple times with fresh Playgrounds to rule out user error and the folder is consistently missing. Previously, new Playgrounds included an Assets catalog by default, which makes this behavior surprising.

Hello everyone, I am facing a persistent and unacceptable issue with my individual enrollment in the Apple Developer Program that has been ongoing for nearly three months. Despite multiple attempts to communicate with Developer Support, I am continuously receiving the exact same generic statement: "For one or more reasons, your enrollment... couldn't be completed," with no clear explanation or actionable steps provided. This lack of genuine assistance and transparency is deeply frustrating and prevents me from publishing my application. Key Details of the Situation: Apple ID Region: Türkiye Current Residence and Address: United Kingdom (UK) Identity Verification: I used my Turkish passport along with my UK residential address. Enrollment Status/Error: After submission, I received the "Contact us to continue your enrollment" prompt. Case Number: 102720548696 Support Experience: The case has been handled by multiple support staff (Migeylis, Alex), all of whom have provided identical, non-specific template responses, failing to address the core problem. It appears the conflict between my Apple ID region (Türkiye) and my UK physical address/Turkish passport documentation is the likely cause. I am seeking clarification on whether this is a known issue for developers with mixed international details and what concrete steps are required to resolve this ambiguity. Has anyone in the community experienced a similar issue? If so, what was the path to resolution? I urge Apple officials to escalate this matter immediately and provide a specific, helpful, and transparent resolution. Every developer deserves equal and fair treatment in the enrollment process. Thank you in advance for any insights or assistance. Best regards, Onur

After updated to Tahoe 26.2 and Xcode 26.2 it seems to have forgotten the Model Provider I had configured. I create a new Model Provider and it works fine, until I exit Xcode. When I open Xcode again my Model Provider is gone. It all worked fine before I did the updates of MacOS and Xcode.

Hi, I have a recurrent problem with an Xcode workspace that I cannot figure out how to solve: When I command-click a symbol (or press ctrl-cmd-J) to find its definition, and when that definition is in a header file belonging to a custom static library, Xcode opens a header located in the derivedData folder rather than in the project's source codes. The exact location of this file is not in the main 'Build' folder but rather in a folder that seems dedicated to indexing: derivedData/myProject/Index.noIndex/Build/Products/Debug/Include/theHeader.h Consequently the file opened by Xcode is uneditable, I have to close it and reopen the source using another method. Even when the correct header is already opened, and I try again, Xcode reopens the wrong file so that it's opened twice with different paths. In the config file of the main application project, I reference the sources of these static libraries like this: HEADER_SEARCH_PATHS = ${SRCROOT}/myLibrary1/Sources ${SRCROOT}/myLibrary2/Sources ${SRCROOT}/myLibrary3/Sources However, removing this doesn't fix the issue and I don't see any other related-settings. Any idea to fix this annoying issue would be greatly appreciated, thanks!

I am unable to activate my developer account. Have raised ticket, it has been more than 24hrs with no response.

Hi; Here is a simple program that reads a file and counts number of 1s bits in it. The file it reads, simple.txt, is a static text file, resides in the file system, and nothing is touching it during the program execution. The file's length is 436 bytes. When the program is run in the terminal it produces consistent results. Each run counts 1329 1s bits. It behaves differently when run in Xcode. A simple command-line tool project having a single file. Running the program multiple times, via Command-R, produces something strange. That is each execution randomly produces one of two results. One is expected 1329 1s bits, another one shows 1333 1s bits. That is it counts four bits more. Again, each run randomly produces one of those two results. And it happens only when I run the program in Xcode. I tried a different sample text file and experienced the same behavior, but the difference in 1s bits count was five bits. Any idea of how this behavior can be explained? func countOnes(in byte: UInt8) -> Int { var nOnes = 0 var mask: UInt8 = 0x1 while mask != 0 { if (byte & mask) > 1 { nOnes += 1 } mask <<= 1 } return nOnes } func countOnes(in buffer: UnsafeMutableRawBufferPointer, length: Int) -> Int { var nOnes = 0 for byte in buffer[0...length] { nOnes += countOnes(in: byte) } return nOnes } var fd = try FileDescriptor.open("sample.txt", .readOnly) var buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: 4096, alignment: 4) var nBytes = try fd.read(into: buffer) var nOnes = 0 while nBytes > 0 { nOnes += countOnes(in: buffer, length: nBytes) nBytes = try fd.read(into: buffer) } buffer.deallocate() try fd.close() print(nOnes) My machine Darwin MacBookPro 24.6.0 Darwin Kernel Version 24.6.0: Wed Oct 15 21:08:19 PDT 2025; root:xnu-11417.140.69.703.14~1/RELEASE_ARM64_T8103 arm64 macOS Sequoia 15.7.2 Xcode 26.1.1 (17B100) Thanks, Igor

I've been working on UI Tests for a month or two and things have been great. But I believe there was a recent update to Xcode [running Version 26.2 (17C52)] and since then about 80% of the time when I try to view the test results so I can see the screenshots and video, Xcode crashes hard and I have to open it again. I've tried cleaning the Build folder and Derived Data and all sorts of stuff like that. Restarted Xcode, restarted my computer, etc. Any idea of how I can avoid these crashes?

Hi, I'm interested in trying out Xcode Assist to help with things like complicated refactors or writing tests cases. The ChatGPT and Claude options both share your code with third parties, which is not acceptable for my use case. Has anyone used a fully local model for Xcode Assist? I see that you can select one in the Apple Intelligence section of Xcode's Preferences screen, but don't really know where to start. Are there local models that work well with Xcode Assist and that truly keep your source code private?

Hi, Since Xcode 26.2 beta 1, till now (I thought RC or actual release will solve this issue) I have problems exporting archive to appstore via Xcode Cloud (locally everything works and using Xcode 26.2 I was able to submit app to AppStore). Build is archived successfully but during export I get an error Exporting for App Store Distribution failed. Please download the logs artifact for more information. In xcodebuild-export-archive.log I see multiple attempts & errors like this 2025-12-13T08:29:34.040644840Z 2025-12-13 00:29:33.900 xcodebuild[10889:58988] DVTServices: Sending request 9A4173F4-CD87-4A76-95FC-501B4D11EF22 to <http://172.16.55.70:8089/services/v1/capabilities> for session DVTFoundation.DVTServicesSessionProxy. 2025-12-13T08:29:34.040647258Z Method: POST 2025-12-13T08:29:34.040648780Z 2025-12-13T08:29:34.040650230Z Headers: 2025-12-13T08:29:34.040651730Z { 2025-12-13T08:29:34.040653539Z Accept = "application/vnd.api+json"; 2025-12-13T08:29:34.040655403Z "Accept-Encoding" = "gzip, deflate"; 2025-12-13T08:29:34.040673847Z "Content-Length" = 124; 2025-12-13T08:29:34.040675883Z "Content-Type" = "application/vnd.api+json"; 2025-12-13T08:29:34.040677903Z "User-Agent" = Xcode; 2025-12-13T08:29:34.040681998Z "X-HTTP-Method-Override" = GET; 2025-12-13T08:29:34.040684468Z "X-Xcode-Version" = "26.2 (17C52)"; 2025-12-13T08:29:34.040686326Z } 2025-12-13T08:29:34.040688028Z 2025-12-13T08:29:34.040689711Z Payload: 2025-12-13T08:29:34.040692163Z {"urlEncodedQueryParams":"teamId=8CKLLLC9UE&filter%5BreferenceType%5D=bundle&filter%5BincludeRequestable%5D=true&limit=200"} 2025-12-13T08:29:34.308538247Z 2025-12-13 00:29:34.208 xcodebuild[10889:58988] DVTServices: Received response for 9A4173F4-CD87-4A76-95FC-501B4D11EF22 @ <http://172.16.55.70:8089/services/v1/capabilities>. Code = 0 2025-12-13T08:29:34.308555026Z 2025-12-13 00:29:34.208 xcodebuild[10889:58988] DVTServices: Response payload: { 2025-12-13T08:29:34.308557639Z "errors" : [ { 2025-12-13T08:29:34.308569919Z "id" : "0316154c-332b-4f9d-a90a-5770d4f8dc1a", 2025-12-13T08:29:34.308573588Z "status" : "400", 2025-12-13T08:29:34.308575871Z "code" : "PARAMETER_ERROR.INVALID", 2025-12-13T08:29:34.308578343Z "title" : "A parameter has an invalid value", 2025-12-13T08:29:34.308581767Z "detail" : "A parameter 'filter[includeRequestable]' has an invalid value : ''includeRequestable' is not a valid field name.'", 2025-12-13T08:29:34.308584989Z "source" : { 2025-12-13T08:29:34.308587270Z "parameter" : "filter[includeRequestable]" 2025-12-13T08:29:34.308589531Z } 2025-12-13T08:29:34.308591437Z } ] 2025-12-13T08:29:34.308593381Z } 2025-12-13T08:29:34.308595389Z 2025-12-13T08:29:34.308597297Z 2025-12-13T08:29:34.308600188Z 2025-12-13 00:29:34.208 xcodebuild[10889:58988] DVTServices: Could not fetch capabilities from network due to error: error = 'A parameter has an invalid value' When I use Xcode 26.1.1 to export the same commit, eveything works and workflow sends build to AppStoreConnect, any ideas what might cause this issue? Unfortunately I need to use Xcode 26.2 if I want to use tabViewBottomAccessory(isEnabled:content:) bcs even though this api is available since iOS 26.1, it's not available in Xcode 26.1

Export archive step fails in Xcode Cloud when using Xcode 26.2 (17C48) RC. The same project exports successfully when switching back to Xcode 26.1 in Xcode Cloud workflow settings. The same project exports successfully when using Xcode 26.2 RC locally. Projects without Apple Watch app do not encounter this issue (not so sure about this). From Xcode Cloud UI: Exporting for App Store Distribution failed. Please download the logs artifact for more information. Run command: 'xcodebuild -exportArchive ... Command exited with non-zero exit-code: 70 From xcodebuild-export-archive.log: error: exportArchive Automatic signing cannot update bundle identifier "io.***.***.watchkitapp". error: exportArchive No profiles for 'io.***.***.watchkitapp' were found error: exportArchive Automatic signing cannot update bundle identifier "io.***.***". error: exportArchive No profiles for 'io.***.***' were found ** EXPORT FAILED ** IDEDistribution: App Store Connect request for store configuration failed for account Session Proxy Provider (Account "Session Proxy Provider": Unable to authenticate with App Store Connect (Error Domain=DVTITunesSoftwareServiceFoundation.DVTServicesSessionProviderCredentialITunesAuthenticationContextError Code=1 "(null)")) DVTServices: Sending request A7605D4E-2892-4B6D-9197-90BD3AB53D67 to <http://172.16.57.4:8089/services/v1/capabilities> Payload: {"urlEncodedQueryParams":"teamId=984L9QX9X5&filter%5BreferenceType%5D=bundle&filter%5BincludeRequestable%5D=true&limit=200"} { "errors": [{ "id": "fb67ecdb-103b-4446-a2db-618fd6bd99e7", "status": "400", "code": "PARAMETER_ERROR.INVALID", "title": "A parameter has an invalid value", "detail": "A parameter 'filter[includeRequestable]' has an invalid value : ''includeRequestable' is not a valid field name.'", "source": { "parameter": "filter[includeRequestable]" } }] } DVTServices: Could not fetch capabilities from network due to error: error = 'A parameter has an invalid value' Workaround Switching Xcode Cloud workflow to use Xcode 26.1 works around the issue. Using Xcode 26.2 RC locally works around the issue.

Hello, I’ve been experiencing a persistent issue in Xcode since version 26.0, and it is still present in 26.2. When using the split view to display two files side by side, the area in the top‑right corner of the window (the inspector / options panel) starts flickering continuously. This happens regardless of whether I’m using the light or dark theme, and even with the Liquid Glass effect disabled in macOS settings. None of these changes have any impact on the issue. I have already submitted a bug report through Xcode (Feedback Assistant), but the issue is still present as of today. The flickering makes the interface difficult to use and visually very distracting. I’ve attached a video to clearly show the issue. I will review the attachment at the time I publish this post. Thanks in advance for any help or feedback. Video 1 https://www.icloud.com/iclouddrive/077l-R7Ybvxz89NI-B7DliEuA#xcode_bug1 Video 2 https://www.icloud.com/iclouddrive/0f6bJp48ioGRdkYiA2U4sI-cg#xcode-bug2

Our apps, such as iCMTGIS PRO, provides the ability for users to open a job file received as an email attachment. Our apps use application:openurl:option to get the URL for the job file (*.pmp). We use [URL path] to convert it to NSString format. Then we use fopen to read the .pmp job file in "read only" mode. On iPad Air (5th generation) running iOS Version 18.6.2, our apps are able to read the .pmp job file. However, on iPhone 11 running iOS: 26.2, using fopen to read the .pmp file, we get a NULL value and are not able to correctly read the .pmp file.

Apple made them both, and for some reason they are acting like each is speaking a foreign language. Once you plug the iPad in, shouldn't the "trust this computer" kick in and allow the iMac to turn on developer mode? I'm the dumbest person in the world when it comes to Code, but this is a no brainer! And the fact that the iPad is in Developer mode, is the most frustrating part. This needs a fix.

I have a Apple Developer accounts for development purposes only and that is also used for testing builds via TestFlight. Is the Age Ratings Responses updates due by the end of January 2026 still required even to send builds to TestFlight?

SKStorefront.countryCode always returns "US" in TestFlight and sandbox, even when sandbox Apple ID is set to a different country. Is this expected behavior? Is SKStorefront guaranteed to return the correct storefront only for production App Store builds?

Hello, I purchased the Apple Developer Program a week ago and yet I haven't received any information on it. No activation of the account whatsoever. I've sent 3 emails to apple support, but still no replied. Is this normal? How long does it take? Will someone finally assist me Apple?

Hello, I'm no macOS 26.1 I'm running through the example shown in the WWDC video "Optimizing CPU Performance with Instruments." After right-clicking a test, clicking "Profile...", and trying to run a processor trace I get the error in the subject. I have processor trace enabled on the CPU via system settings. I confirmed this by disabling it and re-enabling it and noting the error that appears when this is disabled is different from the one I'm now getting. This did previously work but I haven't tried since macOS 26 is released. Is there something new I need to be doing to my Xcode project settings in order for this to be working?

Out of nowhere I got some red banner on top of my iPhone 13 mini / iOS 17.5. I cannot pin point the root cause of this. What I can say is that it only happens to Simulators of a certain type, e.g. iPhone 12 and 13 mini, but not iPhone 14 for example. I have installed Xcode 26.1.0 and 26.1.1, out of which 26.1.0 is selected: $ xcode-select -p /Applications/Xcode-26.1.0.app/Contents/Developer And following runtimes: $ xcrun simctl runtime list == Disk Images == -- iOS -- iOS 17.5 (21F79) - CF933623-A258-44F8-B248-C0F25C0C343B (Ready) iOS 26.1 (23B80) - D11C3CDC-EE3D-44CC-8B92-9B7D00B54B0B (Ready) Total Disk Images: 2 (14.6G) Installing the newer 26.1 23B86 runtime doesn't help either.