developer.apple.com isn't terrible. I don't know of any books off hand, but if you want something in dead tree format, make sure it uses Xcode 4. The UI changes from 3 to 4 are rather dramatic (for ...

Xcode 27 will let developers natively use Google Gemini, in addition to Claude Code and OpenAI Codex, to plan, write, and review code.

New APIs for integrating AI models and extended agentic coding in Xcode 27 provide developers with powerful new ways to build ...