Xcode 27.3 adds GitHub Copilot to its built-in coding assistant

Apple released Xcode 27.3 beta 1, adding GitHub Copilot to the IDE's built-in coding assistant, according to the release notes' Coding Intelligence section. The integration follows Apple's earlier additions of ChatGPT and Anthropic's Claude in Xcode 26, agentic coding via OpenAI Codex and Claude Agent in Xcode 26.3, and Google Gemini in Xcode 27. The beta ships Swift 6.4 with SDKs for iOS, iPadOS, tvOS, watchOS, macOS and visionOS 27.3, and requires a Mac running macOS Tahoe 26.6 or later.

Apple released Xcode 27.3 beta 1 today with multiple new features, chief among them an expansion of its built-in coding assistant to support GitHub Copilot. Here are the details. GitHub Copilot comes to Xcode Since Xcode 26.3 https://9to5mac.com/2026/02/26/apple-releases-xcode-26-3-with-support-for-agentic-coding/ , developers have been able to integrate AI coding agents directly into Xcode, to help with tasks ranging from writing boilerplate code to updating entire projects based on their documentation, file structure, and more. Apple initially introduced ChatGPT integration in Xcode 26 https://9to5mac.com/2025/06/10/beyond-chatgpt-xcode-26-will-support-multiple-ai-models-like-claude/ , followed by Anthropic’s Claude. https://9to5mac.com/2025/08/18/apple-preps-native-claude-integration-on-xcode/ Then, in Xcode 26.3, the company expanded both integrations with agentic coding capabilities through OpenAI’s Codex and Anthropic’s Claude Agent. With Xcode 27, Apple added support for Google Gemini https://9to5mac.com/2026/06/10/xcode-27-expands-agentic-coding-toolset-with-gemini-integration/ , alongside a redesigned interface, interactive planning, and multi-turn conversations. Now, with Xcode 27.3, Apple is expanding the list of supported AI coding tools once again, this time adding GitHub Copilot. The Xcode 27.3 beta 1 release notes include the following under the Coding Intelligence section: Coding Intelligence New Features - GitHub Copilot is now available in the coding assistant. 185837709 As with the other agentic integrations, this is particularly good news for developers whose companies have standardized on GitHub Copilot, as they can now use their company’s preferred AI coding tool directly within Xcode. Here are the full release notes for Xcode 27.3 beta 1: Overview Xcode 27.3 beta includes Swift 6.4 and SDKs for iOS 27.3, iPadOS 27.3, tvOS 27.3, watchOS 27.3, macOS 27.3, and visionOS 27.3. Xcode 27.3 beta supports on-device debugging in iOS 17 and later, tvOS 17 and later, watchOS 10 and later, and visionOS. Xcode 27.3 beta requires a Mac running macOS Tahoe 26.6 or later. See Xcode Support https://developer.apple.com/support/xcode/ to learn more about compatible platforms and deployment targets. Coding Intelligence New Features - GitHub Copilot is now available in the coding assistant. 185837709 Device Hub New Features - You can now drag items onto a device in Device Hub. Drop an app .app or .ipa to install it, or drop a link to open it on the device. On iOS simulators, drop any other file to save it with the Files app. 179246120 FB23037189 Resolved Issues - Device Hub now supports using option-drag to simulate two-finger touch gestures for iPhones and iPads. 169537162 - Device Hub now accepts keyboard and mouse input for OS simulators earlier than iOS 18.0, tvOS 18.0, watchOS 11.0, and visionOS 2.0. 190652440 Known Issues - Device Hub support for CarPlay requires devices to be physically connected via USB cable not over the network . iOS Simulator is not supported for CarPlay. 179494052 FB23101450 - When using Device Hub via Sidecar or a Mac with Touch, only two touches can be sent to the target device. Three or more touches are interpreted by macOS as a system gesture. 185140491 Workaround: Turn off touch gestures in Settings under Touch Display. Previews New Features - RenderPreview MCP tool snapshot filenames and metadata now include the applied overrides. 176531615 - RenderPreview MCP tool now supports interactive delayed snapshots for macOS previews. 181244878 Resolved Issues - A clearer error is now shown when the sandbox blocks a library from loading in a preview. 147269145 - macOS widget previews now fail with a clear error. 178635433 - Fixed a crash that could occur when building a preview after the workspace closes. 183679367 - Fixed excessive processing time for source files that contain long operator chains. 184132564 - Fixed an issue where previews refreshed unnecessarily when an Xcode project or workspace had not changed. 187278576 FB24753484 - Previews now refresh when asset catalog contents change on disk. 187456273 FB24785391 - Fixed an issue where the RenderPreview MCP tool could report no previews before they finished loading. 188424749 - Fixed an issue where the RenderPreview MCP tool could render a different preview than the one requested. 188817121 - Fixed a crash that could occur when changing code while in the Resizable Canvas mode. 189463909 Simulator Resolved Issues - Fixed: Simulator runtimes might be inaccessible to users who are in the daemon group. User accounts should not be added to the daemon group. 190649396 Swift Testing New Features - Xcode now supports writing UI tests with Swift Testing and XCUIAutomation . 95593221 UI Automation New Features XCUIAutomation supports setting the hinge angle on iPhone Duo with a new XCUIHinge class. 187479559 Xcode 27.3 is expected to be released in December, alongside macOS 27.3 and its counterparts. To learn more about what’s coming to Xcode 27.3, follow this link https://developer.apple.com/documentation/xcode-release-notes/xcode-27 3-release-notes Coding-Intelligence . Worth checking out on Amazon FTC: We use income earning auto affiliate links. More. https://9to5mac.com/about/ affiliate our homepage http://9to5mac.com/ for all the latest news, and follow 9to5Mac on exclusive stories https://9to5mac.com/feature/exclusive/ , reviews https://9to5mac.com/guides/review/ , how-tos https://9to5mac.com/guides/how-to/ , and subscribe to our YouTube channel https://www.youtube.com/9to5mac