The News, Explained
On November 4, GitHub announced a public preview of GitHub Copilot in the coding assistant built into Xcode 27.3 beta. Xcode is Apple’s tool for building and testing apps for devices such as the iPhone and Mac. Developers can choose Copilot from Xcode’s own assistant. The existing Copilot extension remains a separate option. Source
The built-in preview requires Xcode 27.3 beta and a Mac running macOS Tahoe 26.6 or later. Setup starts in the Intelligence section of Xcode Settings. GitHub says all Copilot plans are supported. The plan and the development environment are separate requirements: a developer who already has Copilot but still uses Xcode 27.2 does not meet the preview’s Xcode requirement. Source
The existing extension adds features to Xcode through a separate app. GitHub’s installation guide says to install that app, authorize it to use a GitHub account and enable Accessibility and Xcode Source Editor Extension permissions. The project’s repository also lists background operation as a requirement. Once set up, it says Copilot appears in Xcode’s Editor menu. Source Source
GitHub’s sources give different minimum versions for the extension. The installation guide lists macOS 12 and Xcode 8 or later; the project repository lists macOS 13 and Xcode 14 or later. Readers working on an older Mac should compare their environment with the requirements for the specific extension release they intend to install. The new announcement specifies the built-in preview’s requirements separately. Source Source Source
OYOPICK’s Take
We would weigh the cost of changing a working development setup first. If the extension already works for you, a separate test project is a reasonable place to evaluate the built-in workflow before switching. Apple says an enabled coding agent may access project files or other information while processing requests. For work code, check the team’s rules on sharing code and what access the agent gets before trying it. A side-by-side list of features and permissions from GitHub would help people choose between the two paths. Source