When will Xcode be better?

Generated on 8/2/2024

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Xcode is set to improve significantly with the release of Xcode 16. Here are some of the key enhancements:

  1. Generative Models: Xcode 16 introduces specialized coding models that leverage Apple's foundation model. These models are trained specifically for Swift and Apple SDKs, providing advanced code completion that predicts the code you need based on your project symbols. This feature runs locally on your Mac, ensuring privacy and fast results (Platforms State of the Union).

  2. Swiftassist: A new feature called Swiftassist acts as a companion for all your coding tasks. It can answer coding questions, help with tasks like experimenting with new APIs, and runs in the cloud to provide a powerful coding experience (Platforms State of the Union).

  3. Previews and Builds: Xcode 16 improves the workflow with a new dynamic linking architecture for Xcode Previews, which uses the same build artifacts for previews and when you build and run. This reduces the need for rebuilding your project, making the workflow smoother and more productive (Platforms State of the Union).

  4. Explicit Modules: This feature provides improved parallelism, better diagnostics, and faster debugging without changing a single line of code. For C and Objective-C, explicit modules are on by default, while for Swift, you need to opt-in (What’s new in Xcode 16).

  5. Thread Performance Checker: This tool will now show excessive disk write and slow app launch diagnostics to help improve your app's performance. It also provides a new category of diagnostic logs for app launches (What’s new in Xcode 16).

  6. Localization Enhancements: Enhancements to localization catalogs will help bring your app to more people around the world (Platforms State of the Union).

The first beta of Xcode 16 is available now, with the new predictive completion for Apple Silicon Macs and Swiftassist expected to be available later this year (Platforms State of the Union).

Relevant Sessions

  1. Platforms State of the Union
  2. What’s new in Xcode 16
  3. Xcode essentials