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Compatibility of Xcode 26.3 Release Candidate 2 and WatchOS 26.3
I have made an app using Xcode 26.3 Release Candidate 2 for my Apple Watch that runs successfully on the simulator. Xcode comes with the IoS 26.2 and WatchOS SDK 26.2. However, when I do try to connect to my device that have IoS 26.3 and watchOS 26.3, I see a succesful connection to my iPhone but I see the the world symbol and wheel keeps trying to connect on my Apple Watch. I also tried Xcode 26.4 beta 2 with no luck. I reviewed the WatchOS Release Notes: The watchOS 26.2 SDK provides support to develop watchOS apps for Apple Watch devices running watchOS 26.3. The SDK comes bundled with Xcode 26.2, available from the Mac App Store. I also tried Xcode 26.2 but no luck. Any suggestions?
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Questions about DeclaredAgeRange's isEligibleForAgeFeatures instance variable
Our team is in the process of updating our apps to comply with Texas's new state law. In order to minimize user confusion and provide the most ideal flow to access the app as possible, we have a few questions we would like answered. Summary of questions: Is isEligibleForAgeFeatures intended to be accurate and accessible before the user has accepted the Age Range permissions prompt? As other US states and/or other countries adopt a similar law going forward, will this instance variable cover those locations? Will the runtime crashes on isEligibleForAgeFeatures and other symbols in the DeclaredAgeRange framework be addressed in a future RC or in the official release? Details and Investigations: With regards to isEligibleForAgeFeatures, our team has noticed that this value is always false before the age range prompt has been accepted. This has been tested on the XCode RC 26.2 (17C48). Assuming the request needs to be accepted first, isEligibleForAgeFeatures does not get updated immediately when the user
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3w
(Xcode 26.0 → 26.2) Constant UI flickering in split view mode
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
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Reply to (Xcode 26.0 → 26.2) Constant UI flickering in split view mode
Just in case anyone else is having a problem, I found that it flickers when I am on Studio Display + Light Theme. If I move the XCode window to the laptop display, it will not cause flickering. I have just found that on dark theme, flickering does not occur in any of my setups, whereas light theme causes flickering, just like shown in the video (top right corner). I want to repeat that: flickering only seems to happen on Studio Display for me. XCode Version: Version 26.3 (17C529) MacOS: Version 26.3 (25D125) Hardware: Apple M1 Max
3w
Reply to SwiftData Unidirectional Relationships
The error seems to be triggered the second time when a Fish is added, which is because Fish(id: 2, name: Salmon) uses a duplicate value (2) for the id attribute, which is .unique. Avoiding using a duplicate value for the .unique attribute fixes the error. I've confirmed that Xcode 26.2 (17C52) on iOS Simulator 26.2 (23C54). Best, —— Ziqiao Chen  Worldwide Developer Relations.
3w
How can I change the output dimensions of a CoreML model in Xcode when the outputs come from a NonMaximumSuppression layer?
After exerting a custom model with nms=True. In Xcode, the outputs show as: confidence: MultiArray (0 × 5) coordinates: MultiArray (0 × 4) I want to set fixed shapes (e.g., 100 × 5, 100 × 4), but Xcode does not allow editing—the shape fields are locked. The model graph shows both outputs come directly from a NonMaximumSuppression layer. Is it possible to set fixed output dimensions for NMS outputs in CoreML?
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`sysextd` rejects new `NEFilterDataProvider` activation with "no policy" on macOS 26 — despite valid Developer ID + notarization
I'm building a macOS network monitor using NEFilterDataProvider as a system extension, distributed with Developer ID signing. On macOS 26.3 (Tahoe), sysextd consistently rejects the activation request with no policy, cannot allow apps outside /Applications — despite the app being in /Applications and passing every verification check. I'm aware of the known Xcode NE signing bug (r. 108838909) and have followed the manual signing process from Exporting a Developer ID Network Extension. I've also tried both xcodebuild build and xcodebuild archive workflows — identical failure. Environment macOS 26.3 (25D125), SIP enabled Xcode 26.3 (17C529) Hardware Apple M2 Pro Certificate Developer ID Application (issued Jan 30, 2026 — 27 days old) MDM/Profiles None installed Signing & Verification (all pass) $ spctl -a -vv /Applications/Chakshu.app /Applications/Chakshu.app: accepted source=Notarized Developer ID origin=Developer ID Application: ROBIN SHARMA (R65679C4F3) $ codesign --verify --deep --stri
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Different team ID's on my certs
I've seen a few posts about this online and it seems that Xcode generates random team ID's with it's automatic signing system. But I haven't seen any way to make this work properly. If I log into the dev portal and look at my account, in the upper right I can see my team ID. If I manually generate a cert, I get a totally different one. Question: How can I generate a cert with my proper team ID (my paid account) where the ID's on my certs, identifiers and profiles all match? I've never had this issue before and am unsure how to solve it.
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Reply to Different team ID's on my certs
[quote='817211021, crewshin, /thread/817211, /profile/crewshin'] it seems that Xcode generates random team ID's with it's automatic signing system [/quote] I think you’re mixing up the various different identifiers that all use the 10-character format. See Code Signing Identifiers Explained for more about that. ps Lemme know if this helps because I’m thinking of turning this into a technote in the Inside Code Signing series, and I’m more likely to make time for that if I know that it’s actually helpful. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
3w
App Crashes on iOS 26 in Network.framework / boringssl – objc_release & memory corruption
Hello Apple Support Team, We are seeing a production crash on iOS 26 devices that appears to originate from Apple system frameworks rather than application code. 1. Crash Details OS Version: iOS 26.x App built with: Xcode 16 Devices: Multiple models (not device-specific) Exception Type: SIGSEGV SEGV_ACCERR Fault Address: 0x0000000000000100 Crashed Thread: 4 (network background queue) Crash trace summary: Last Exception : 0 libobjc.A.dylib _objc_release_x8 + 8 1 libboringssl.dylib _nw_protocol_boringssl_deallocate_options + 92 2 Network 0x000000019695207c 0x00000001968dc000 + 483452 3 libswiftCore.dylib __swift_release_dealloc + 56 4 libswiftCore.dylib bool swift::RefCounts >::doDecrementSlow<(swift::PerformDeinit)1>(swift::RefCountBitsT<(swift::RefCountInlinedness)1>, unsigned int) + 152 5 Network 0x0000000196951f6c 0x00000001968dc000 + 483180 6 Network 0x0000000196952000 0x00000001968dc000 + 483328 7 libswiftCore.dylib __swift_release_dealloc + 56 8 libswiftCore.dyli
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144
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Reply to App group broken on Sequoia
The macOS 15 development cycle triggered a bunch of changes in app groups. See App Groups: macOS vs iOS: Working Towards Harmony for the backstory. Going forward, I recommend that you: Decide on the app group ID you want to use. This can use either the macOS style or iOS style. For new code I recommend the iOS style, although if you have an exist product that uses the macOS style it usually makes sense to stick with that. For each program involved (so your app and your file provider appex)… Make sure it has an explicit App ID. Create a profile that authorises that App ID to access your app group. Make sure that profile gets embedded in the program’s bundle. Sign the program to claim access to that app group. IMPORTANT Make sure to sign the program with com.apple.application-identifier so that the system can associated the program with its provisioning profile. If you’re using Xcode, it will typically take care of this for you, although my experience is that this works better if you’re using an iOS st
Topic: Code Signing SubTopic: Entitlements Tags:
3w
Reply to Compatibility of Xcode 26.3 Release Candidate 2 and WatchOS 26.3
Found out that best way to load new app to Watch is to load first the companion app on the iphone, then to the watch. The globe symbol on Xcode for the watch is expected since it is not directly connected to Xcode but it is via iphone.
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Compatibility of Xcode 26.3 Release Candidate 2 and WatchOS 26.3
I have made an app using Xcode 26.3 Release Candidate 2 for my Apple Watch that runs successfully on the simulator. Xcode comes with the IoS 26.2 and WatchOS SDK 26.2. However, when I do try to connect to my device that have IoS 26.3 and watchOS 26.3, I see a succesful connection to my iPhone but I see the the world symbol and wheel keeps trying to connect on my Apple Watch. I also tried Xcode 26.4 beta 2 with no luck. I reviewed the WatchOS Release Notes: The watchOS 26.2 SDK provides support to develop watchOS apps for Apple Watch devices running watchOS 26.3. The SDK comes bundled with Xcode 26.2, available from the Mac App Store. I also tried Xcode 26.2 but no luck. Any suggestions?
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1
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0
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175
Activity
3w
Questions about DeclaredAgeRange's isEligibleForAgeFeatures instance variable
Our team is in the process of updating our apps to comply with Texas's new state law. In order to minimize user confusion and provide the most ideal flow to access the app as possible, we have a few questions we would like answered. Summary of questions: Is isEligibleForAgeFeatures intended to be accurate and accessible before the user has accepted the Age Range permissions prompt? As other US states and/or other countries adopt a similar law going forward, will this instance variable cover those locations? Will the runtime crashes on isEligibleForAgeFeatures and other symbols in the DeclaredAgeRange framework be addressed in a future RC or in the official release? Details and Investigations: With regards to isEligibleForAgeFeatures, our team has noticed that this value is always false before the age range prompt has been accepted. This has been tested on the XCode RC 26.2 (17C48). Assuming the request needs to be accepted first, isEligibleForAgeFeatures does not get updated immediately when the user
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6
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1.2k
Activity
3w
(Xcode 26.0 → 26.2) Constant UI flickering in split view mode
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
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6
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306
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3w
Reply to (Xcode 26.0 → 26.2) Constant UI flickering in split view mode
Just in case anyone else is having a problem, I found that it flickers when I am on Studio Display + Light Theme. If I move the XCode window to the laptop display, it will not cause flickering. I have just found that on dark theme, flickering does not occur in any of my setups, whereas light theme causes flickering, just like shown in the video (top right corner). I want to repeat that: flickering only seems to happen on Studio Display for me. XCode Version: Version 26.3 (17C529) MacOS: Version 26.3 (25D125) Hardware: Apple M1 Max
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Boosts
Views
Activity
3w
Reply to SwiftData Unidirectional Relationships
The error seems to be triggered the second time when a Fish is added, which is because Fish(id: 2, name: Salmon) uses a duplicate value (2) for the id attribute, which is .unique. Avoiding using a duplicate value for the .unique attribute fixes the error. I've confirmed that Xcode 26.2 (17C52) on iOS Simulator 26.2 (23C54). Best, —— Ziqiao Chen  Worldwide Developer Relations.
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3w
Preview crashes consistency in Xcode 16 beta
In the first Xcode 16 beta, none of my SwiftUI previews work - they all just crash on start up. Has anybody run into this and found a workaround? Have tried all the usual steps of cleaning the project/restarting Xcode.
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12k
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Reply to Preview crashes consistency in Xcode 16 beta
Had the same problem with Firebase packages causing a crash in Xcode 16 26.4 beta and setting Editor -> Canvas -> Use Legacy Previews Execution fixed it.
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Reply to How can I change the output dimensions of a CoreML model in Xcode when the outputs come from a NonMaximumSuppression layer?
Thanks for the suggestions. I was just wondering if it’s possible to make edits on directly in the Xcode editor.
Topic: Machine Learning & AI SubTopic: Core ML Tags:
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How can I change the output dimensions of a CoreML model in Xcode when the outputs come from a NonMaximumSuppression layer?
After exerting a custom model with nms=True. In Xcode, the outputs show as: confidence: MultiArray (0 × 5) coordinates: MultiArray (0 × 4) I want to set fixed shapes (e.g., 100 × 5, 100 × 4), but Xcode does not allow editing—the shape fields are locked. The model graph shows both outputs come directly from a NonMaximumSuppression layer. Is it possible to set fixed output dimensions for NMS outputs in CoreML?
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2
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220
Activity
3w
`sysextd` rejects new `NEFilterDataProvider` activation with "no policy" on macOS 26 — despite valid Developer ID + notarization
I'm building a macOS network monitor using NEFilterDataProvider as a system extension, distributed with Developer ID signing. On macOS 26.3 (Tahoe), sysextd consistently rejects the activation request with no policy, cannot allow apps outside /Applications — despite the app being in /Applications and passing every verification check. I'm aware of the known Xcode NE signing bug (r. 108838909) and have followed the manual signing process from Exporting a Developer ID Network Extension. I've also tried both xcodebuild build and xcodebuild archive workflows — identical failure. Environment macOS 26.3 (25D125), SIP enabled Xcode 26.3 (17C529) Hardware Apple M2 Pro Certificate Developer ID Application (issued Jan 30, 2026 — 27 days old) MDM/Profiles None installed Signing & Verification (all pass) $ spctl -a -vv /Applications/Chakshu.app /Applications/Chakshu.app: accepted source=Notarized Developer ID origin=Developer ID Application: ROBIN SHARMA (R65679C4F3) $ codesign --verify --deep --stri
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5
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172
Activity
3w
Different team ID's on my certs
I've seen a few posts about this online and it seems that Xcode generates random team ID's with it's automatic signing system. But I haven't seen any way to make this work properly. If I log into the dev portal and look at my account, in the upper right I can see my team ID. If I manually generate a cert, I get a totally different one. Question: How can I generate a cert with my proper team ID (my paid account) where the ID's on my certs, identifiers and profiles all match? I've never had this issue before and am unsure how to solve it.
Replies
1
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0
Views
147
Activity
3w
Reply to Different team ID's on my certs
[quote='817211021, crewshin, /thread/817211, /profile/crewshin'] it seems that Xcode generates random team ID's with it's automatic signing system [/quote] I think you’re mixing up the various different identifiers that all use the 10-character format. See Code Signing Identifiers Explained for more about that. ps Lemme know if this helps because I’m thinking of turning this into a technote in the Inside Code Signing series, and I’m more likely to make time for that if I know that it’s actually helpful. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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3w
App Crashes on iOS 26 in Network.framework / boringssl – objc_release & memory corruption
Hello Apple Support Team, We are seeing a production crash on iOS 26 devices that appears to originate from Apple system frameworks rather than application code. 1. Crash Details OS Version: iOS 26.x App built with: Xcode 16 Devices: Multiple models (not device-specific) Exception Type: SIGSEGV SEGV_ACCERR Fault Address: 0x0000000000000100 Crashed Thread: 4 (network background queue) Crash trace summary: Last Exception : 0 libobjc.A.dylib _objc_release_x8 + 8 1 libboringssl.dylib _nw_protocol_boringssl_deallocate_options + 92 2 Network 0x000000019695207c 0x00000001968dc000 + 483452 3 libswiftCore.dylib __swift_release_dealloc + 56 4 libswiftCore.dylib bool swift::RefCounts >::doDecrementSlow<(swift::PerformDeinit)1>(swift::RefCountBitsT<(swift::RefCountInlinedness)1>, unsigned int) + 152 5 Network 0x0000000196951f6c 0x00000001968dc000 + 483180 6 Network 0x0000000196952000 0x00000001968dc000 + 483328 7 libswiftCore.dylib __swift_release_dealloc + 56 8 libswiftCore.dyli
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1
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144
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3w
Reply to App group broken on Sequoia
The macOS 15 development cycle triggered a bunch of changes in app groups. See App Groups: macOS vs iOS: Working Towards Harmony for the backstory. Going forward, I recommend that you: Decide on the app group ID you want to use. This can use either the macOS style or iOS style. For new code I recommend the iOS style, although if you have an exist product that uses the macOS style it usually makes sense to stick with that. For each program involved (so your app and your file provider appex)… Make sure it has an explicit App ID. Create a profile that authorises that App ID to access your app group. Make sure that profile gets embedded in the program’s bundle. Sign the program to claim access to that app group. IMPORTANT Make sure to sign the program with com.apple.application-identifier so that the system can associated the program with its provisioning profile. If you’re using Xcode, it will typically take care of this for you, although my experience is that this works better if you’re using an iOS st
Topic: Code Signing SubTopic: Entitlements Tags:
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