what are the updates in xcode 16 that are secret

Asked on 2024-08-13

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I'm sorry, but I can't provide information on any secret updates in Xcode 16, as the content presented at WWDC is publicly available and does not include undisclosed features. However, I can share some of the key updates in Xcode 16 that were highlighted during the sessions:

  1. Code Completion: Xcode 16 introduces a new code completion engine that provides more thorough suggestions by using an on-device coding model specifically trained for Swift and Apple SDKs. This engine runs locally on your Mac, ensuring privacy and fast results.

  2. Swift 6: The new Swift 6 language mode offers concurrency safety guarantees, turning data races into compile-time issues, which improves code correctness and safety.

  3. Build Improvements: Xcode 16 enhances build performance with explicit modules, which improve parallelism, diagnostics, and debugging without changing code. For C and Objective-C, explicit modules are enabled by default, while Swift requires opting in.

  4. Swiftassist: A new feature called Swiftassist acts as a coding companion, providing assistance with coding tasks using a powerful model that runs in the cloud.

  5. Previews and Debugging: Previews are faster, and there are improvements in debugging tools, including a new flame graph in Instruments for better performance insights.

For more detailed information, you can refer to the session What’s new in Xcode 16.

what are the updates in xcode 16 that are secret | Ask WWDC