Is it mandatory for all developers to migrate to Xcode 26 starting from April 28, 2026? What happens if a developer submits or distributes a build created using Xcode 16 after April 28, 2026? Will it still be accepted or supported? Our app is distributed only via an internal company portal (not through the App Store). In this case, are we still required to build and distribute the app using Xcode 26 after April 28, 2026? If a hotfix is required before our next planned release (July 2026), how safe is it to use the UIDesignRequiresCompatibility flag as a temporary solution, assuming Xcode 26 becomes mandatory? Are there any risks or limitations associated with this approach? What are the potential issues if a team continues development on Xcode 16 while others have migrated to Xcode 26? For example, could there be compatibility, build, or integration challenges in such a mixed environment? If the UIDesignRequiresCompatibility flag is used as a temporary workaround, what would be the impact if Apple later removes support for this flag, especially with newer iOS versions (e.g., iOS 26+)? For users who already have the app installed with this flag enabled For users installing the app for the first time after such changes

Trying to use the new built-in coding agents in Xcode (Claude / Codex), but running into a limitation with enterprise model setups. Our org accesses models through Microsoft Foundry (Azure-hosted endpoints), and we can connect to those models in Xcode using a custom endpoint / URL. That part works. However, that setup doesn’t seem to work with the built-in coding agents themselves. Those still appear to require direct account login or native API keys, with no way (that I can find) to point them at a custom endpoint or provider-backed deployment. Anyone figured out a way to get the agent experience working with enterprise setups like Foundry (or proxy layers)? Or is that not supported yet?

According tho Claude, The crash is clearly a bug in Xcode's built-in AI chat feature (IDEIntelligenceChat), not an authentication issue or anything on your end. What the crash log shows: The crash is happening in IDEIntelligenceChat — specifically in ChatInputEditorView.updateView and SourceEditorDataSource.ideChat_gracefullyApplyChangesToReflect. It's a SIGTRAP (assertion/precondition failure) triggered while SwiftUI is trying to lay out the AI chat panel. This is an Apple bug in Xcode 26.2 itself.

Hi everyone, I'm experiencing a persistent issue for months now where I'm unable to download the iOS 26 simulator Runtime. I've tried reinstalling Xcode and also Xcode Beta but same issue. iOS 26 Simulator is also not on developers download page, so manual installation is impossible. And sadly I can't compile any code without having iOS 26 simulator installed. Anyone able to get passed this? Hardware: M1 Pro OS: Tahoe 26.1 Heres the error Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2026-01-07 11:35:35 +0000"; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 -- Download failed due to not being able to connect to the host. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 60 User Info: { checkNetwork = 1; } -- System Information macOS Version 26.1 (Build 25B78) Xcode 26.2 (24553) (Build 17C52) Timestamp: 2026-01-07T12:35:35+01:00

I am unable to use my iPhone 17 Pro as a run destination in Xcode. The device appears at a low level, but CoreDevice / devicectl keeps reporting it as unavailable. Environment • Mac mini (Apple Silicon) • macOS 26.3 (Build 25D125) • iPhone 17 Pro • iOS 26.3 • Xcode 26.3 (Build 17C529) • Xcode 26.4 beta 2 (Build 17E5170d) Symptoms • The iPhone appears in Finder • On the iPhone, I tapped “Trust This Computer” • Developer Mode is enabled • Apple ID is added in Xcode Accounts • Team is configured in Signing & Capabilities • iOS Platform Support is installed • The device still does not become available as a run destination • Devices and Simulators does not show it in a usable state • xcrun devicectl list devices still shows unavailable Output of xcrun devicectl list devices Failed to load provisioning paramter list due to error: Error Domain=com.apple.dt.CoreDeviceError Code=1002 "No provider was found." UserInfo={NSLocalizedDescription=No provider was found.}. devicectl manage create may support a reduced set of arguments. Name Hostname Identifier State Model CAC1B56A-C3B4-59FF-8F9D-659277C7C76C.coredevice.local CAC1B56A-C3B4-59FF-8F9D-659277C7C76C unavailable iPhone18,1 What I already tried • Apple cable • Different USB/Thunderbolt ports • Direct connection to rear ports • Restarted both Mac and iPhone • Restarted Xcode • Ran sudo killall usbmuxd • Ran sudo pkill -9 remoted • Upgraded Xcode from 26.2 to 26.3, then to 26.4 beta 2 • Ran sudo xcode-select -s /Applications/Xcode-beta.app • Ran sudo xcodebuild -runFirstLaunch • Reset “Location & Privacy” on the iPhone, then trusted the Mac again • Still remains unavailable Additional note ioreg shows the iPhone, so the physical USB connection seems to exist. However, at the CoreDevice / devicectl layer the device remains unavailable, and Xcode cannot use it for on-device build/run. Is this a known issue with macOS 26.3 / iOS 26.3 / Xcode 26.4 beta 2? Any workaround or additional debugging steps would be appreciated.

Hi. Our IT security team have flagged that on many developer machines they see a deprecated version of Python - 3.9.6. I've done some research on this and the general line is, feel free to upgrade the main version of Python on the Mac, but the version of Python which is internally used by Xcode (3.9.6) must be left unchanged. Our IT security team reached out to Apple and have received conflicting information as to if this Ruby 3.9.6 version can be upgraded. One response for example was "I asked my Solutions Engineer and he has come back with the following: We don’t include Python within macOS anymore, we install 3.9.6 with Xcode to support some of the internal tools - but there’s nothing preventing a customer updating that version: https://mac.install.guide/python/update". Does anyone know if it is possible to upgrade to a supported version? Kind regards, Kai.

It looks like the other thread got locked. I would still like to be able to uncheck the box for "Connect via network" so I can develop with my iOS 17+ devices normally with Xcode 15. Or a method to use Xcode 14 with iOS 17+ without CoreDevice or whatever the problematic API is.

With the latest Xcode 26.4 my project fails to compile due to a "compiler unable to type-check in reasonable time" error with a library I've been using for years and has not changed. The library is https://github.com/ngageoint/mgrs-ios and is specifically around this line https://github.com/ngageoint/mgrs-ios/blob/master/mgrs-ios/utm/UTM.swift#L96. Since this isn't my library I can't change it, but again we've been using this library for years now without issue - it was only when Xcode updated this morning that our compilation workflow broke. (Compilation machine is an M3 Pro with 18GB of RAM, so I don't think that's the problem here)

After having built the SwiftUI project numerous times from Xcode and allowing the plugins after the first build post install using xcodebuild -scheme <SchemeName> build fails with: The following build commands failed: Validate plug-in “SwiftLintBuildToolPlugin” in package “swiftlintplugins” Validate plug-in “OpenAPIGenerator” in package “swift-openapi-generator” How are we supposed to grant the plugins permission to run in the CLI? Everything I'm getting from Gemini is for packages, not apps.

Hi, On a 1920 points wide monitor, running maximized, Xcode 26.4 can't show more than 10 editor tabs at a time. Under the same conditions, Xcode 26.2 adapts tab widths to file names and fits 12-14 tabs. That's 2-4 more files I can see and access at a glance, without extra interaction. How can I get that level of information density back in the Xcode 26.4 editor tab bar? Screenshots Xcode 26.4 (10 tabs) Xcode 26.2 (12 tabs) Xcode 26.2 (14 tabs)

I submitted this to Feedback Assistant as FB22331090 and wanted to share a minimal reproducible example here in case others are seeing the same issue. Environment: Xcode 26.4 or Xcode 26.3 Apple Swift version 6.3 (swiftlang-6.3.0.123.5 clang-2100.0.123.102) Effective Swift language version 5.10 Deployment target: iOS 17.0 The sample app builds successfully for normal development use, but archive fails. The crash happens during optimization in EarlyPerfInliner while compiling the synthesized deinit of a nested generic Coordinator class. The coordinator stores a UIHostingController. Minimal reproducer: import SwiftUI struct ReproView<Content: View>: UIViewRepresentable { let content: Content func makeUIView(context: Context) -> UIView { context.coordinator.host.view } func updateUIView(_ uiView: UIView, context: Context) { context.coordinator.host.rootView = content } func makeCoordinator() -> Coordinator { Coordinator(content: content) } final class Coordinator { let host: UIHostingController<Content> init(content: Content) { host = UIHostingController(rootView: content) } } } Used from ContentView like this: ReproView(content: Text("Hello")) Steps: Create a new SwiftUI iOS app. Set deployment target to iOS 17.0. Add the code above. Archive. Expected result: Archive succeeds, or the compiler emits a normal diagnostic. Actual result: The Swift compiler crashes and prints: "Please submit a bug report" "While running pass ... SILFunctionTransform 'EarlyPerfInliner'" The crash occurs while compiling the synthesized deinit for ReproView.Coordinator. Relevant log lines from my archive log: line 209: Please submit a bug report line 215: While running pass ... EarlyPerfInliner line 216: for 'deinit' at ReproView.swift:19:17 One more detail: The same sample archived successfully when the deployment target was higher. Lowering the deployment target to iOS 17.0 made the archive crash reproducible. This may be related to another forum thread about release-only compiler crashes, but the reproducer here is different: this one uses a generic UIViewRepresentable with a nested Coordinator storing UIHostingController.

Hello, I have a critical issue regarding the "Family Controls (Distribution)" entitlement. My app "FocusPact" was approved for the entitlement, but there is a technical mismatch in the Bundle IDs that prevents distribution via TestFlight. [Current Situation] Parent App ID: com.hayashikento.FocusPact (Approved / Capitalized) Approved Extension ID: com.hayashikento.focuspact.ShieldConfigurationExtension (Approved / Lowercase) [The Issue] Due to the case-sensitivity difference (FocusPact vs focuspact), Xcode throws a "Bundle identifier prefix mismatch" error. Since the parent app identifier is already established as capitalized, I cannot change it to lowercase without breaking the existing configuration. [Request] I have submitted a new entitlement request with the corrected capitalized Bundle ID: Corrected Extension ID: com.hayashikento.FocusPact.ShieldConfigurationExtension Could a DTS engineer please help me synchronize the approved status to this capitalized ID? This is purely a technical correction of an already authorized functionality. Team ID: UHG4J7F7NH App Apple ID: 67591326449 Thank you for your assistance. I am a student developer eager to start MVP testing as soon as this is resolved.

Hi there, I recently updated to the latest version of macOS Tahoe 26.3. Since then, Xcode is not able to resolve my Swift Package dependencies anymore. We use SSH for all our Github hosted packages. When package resolution is running, we randomly have Failed to verify SSH fingerprint on some remote package. Nothing has changed and it worked perfectly with Tahoe 26.2. The SSH have been reconfigured and known hosts have been verified. Is something changed between those 2 versions or is it a bug ?

I'm based in Australia, and am having the following issue. After leaving this message I received another response from someone else who is also havign the same issue, I've pasted that too. I'm quite surprised to not see it mentioned, could be local to language settings or something. Here is the issue: Folk, I am having an issue where Xcode 26.3 with the new iOS26.2+26.3.1 Simulator update installed doesn’t render Unicode characters in the Canvas or in Simulator. They do render when running direct to a device. I’ve reset devices inside Simulator, cleared Derived Data, cleaned Build Folders etc but to no avail! Is anyone else seeing this, I can’t find a mention anywhere!! Thank you in advance. Yep. Same here. Can't see emojis on the emoji picker keyboard.

Was working before, no longer working this week. Trying to sign in to my Claude Pro account via Xcode Intelligence. Goes to browser, I login, and accept authorization in Claude then redirect back to Xcode is reject. Everytime, multiple browsers, and even trying the add "/" that others have noted for other cases.

after upgrade macos version to 15.4 the rsync start failing that cause the xcodebuild fail and not generate ipa rsync: on remote machine: --extended-attributes: unknown option rsync error: syntax or usage error (code 1) at main.c(1802) [server=3.4.1] rsync(73444): error: unexpected end of file rsync(73444): error: io_read_nonblocking rsync(73444): error: io_read_buf rsync(73444): error: io_read_int rsync(73444): warning: child 73445 exited with status 1

Every time I touch (add a key, remove a key, even add a key, then remove it) the Strings Catalog .xcstrings file, it re-renders the entire file and creates a 18 thousand line dif. When I looked closer, it changes the whitespace before colons! "version": "1.0" "version" : "1.0" it does so for every JSON node. This makes the whole feature useless, because we wont be able to see what we changed upon code review (diff is unprintable in the github interface) and every time we change a single translation, we will be stacking 18k lines diff. Not to mention merge conflicts?

Hi everyone, I'm working in a strictly offline (intranet) environment and cannot use the standard online installation process to download and install the Claude Agent for Xcode. What I've tried: I manually copied the Agent binary/folder from an online machine to the following path: ~/Library/Developer/Xcode/CodingAssistant/Agents/Versions/26.3/claude The Issue: Even though the files are in the correct directory, Xcode fails to recognize the agent. It doesn't appear in the settings, and the Coding Assistant remains unavailable. Questions: Is there a specific metadata file (e.g., a .plist or .json index) that needs to be updated for Xcode to "see" the manually added agent? Are there any code signing or quarantine issues (like xattr) that need to be addressed when moving the agent between machines? Does anyone know if there are other dependencies or cache folders (besides ~/Library/Developer/Xcode/CodingAssistant/) that need to be synchronized? Environment: macOS: 26.3 (25D122) Xcode: 26.3 (17C519) Any guidance on the manual registration process for these agents would be greatly appreciated. Thanks!

0 0x1001bd52c __assert_rtn + 252 1 0x100132054 void std::__1::__introsort<std::__1::_ClassicAlgPolicy, ld::AliasAddressOrderer&, ld::Atom const**, false>(ld::Atom const**, ld::Atom const**, ld::AliasAddressOrderer&, std::__1::iterator_traits<ld::Atom const**>::difference_type, bool) + 0 2 0x1001319a4 ld::LayoutLinkedImage::assignAtomOffsetsInSection(ld::SectionLayout&, unsigned int, bool) + 680 3 0x100136724 void dispatchForEach<ld::SectionLayout*, ld::LayoutLinkedImage::sortAtomsWithinSections()::$_0>(std::__1::span<ld::SectionLayout*, 18446744073709551615ul>, unsigned long, ld::LayoutLinkedImage::sortAtomsWithinSections()::$_0)::'lambda'(unsigned long)::operator()(unsigned long) const + 7852 4 0x19dca8aec _dispatch_client_callout2 + 16 5 0x19dca37f8 _dispatch_apply_invoke3 + 336 6 0x19dca8ad4 _dispatch_client_callout + 16 7 0x19dc91a60 _dispatch_once_callout + 32 8 0x19dca2938 _dispatch_apply_invoke + 252 9 0x19dca8ad4 _dispatch_client_callout + 16 10 0x19dcc59dc _dispatch_channel_invoke.cold.5 + 32 11 0x19dca113c _dispatch_root_queue_drain + 736 12 0x19dca1784 _dispatch_worker_thread2 + 180 13 0x19de47e10 _pthread_wqthread + 232 ld snapshot written at /tmp/****app.debug.dylib-2026-03-24-092748.ld-snapshot ld: Assertion failed: (aliasSectionNum == sectionNum && "alias and its target must be located in the same section"), function assignAliasAtomOffsetInSection, file Layout.cpp, line 4805. clang: error: linker command failed with exit code 1 (use -v to see invocation) I want to submit an ld-snapshot attachment, but the "Add File" function in the posting section won't let me add any files. My macOS was upgraded from version 16 to 26.3, and my Xcode was upgraded from version 16.1 to 26.3. Please help me resolve this as soon as possible, thank you.

Help please! I'm new to Xcode and my Mac is a 2021 MacBook Pro. I've downloaded Xcode recently (version 26.2) and wanted to preview and test my first App. But somehow, I just can't download the iOS simulator. People tell me that I can download resources from developer.apple.com, but I only found the iOS_18.2_runtime.dmg. I downloaded and installed the iOS 18.2 version but Xcode still requires to download the iOS 26.2 simulator. I don't know why and how to fix this problem. Please help!