Apple has just released Xcode 26.3, and it’s a big step forward in terms of the company’s support of coding agents. The new release expands on the AI features the company introduced with Xcode 26 at WWDC 2025 to give systems like Claude and ChatGPT more robust access to its in-house IDE.
With the update, Apple says Claude and OpenAI’s Codex “can search documentation, explore file structures, update project settings, and verify their work visually by capturing Xcode Previews and iterating through builds and fixes.” This is in contrast to earlier releases of Xcode 26 where those same agents were limited in what they could see of a developer’s Xcode
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