new in xcode

New Features in Xcode 16

Xcode 16 introduces several new features and improvements to enhance the development experience. Here are some of the key updates:

1. Code Completion:

   • Xcode 16 features an innovative new engine for code completion, powered by a unique model specifically trained for Swift and Apple SDKs. This engine uses your project symbols to customize suggestions and runs locally on your Mac, ensuring privacy and fast results. This feature is available when running Xcode 16 on macOS Sequoia.
   • Platforms State of the Union (21:10)
   • What’s new in Xcode 16 (00:33)

2. Swiftassist:

   • Swiftassist is a new companion tool for coding tasks, capable of answering coding questions and helping with tasks like experimenting with new APIs. It leverages a larger and more powerful model that runs in the cloud.
   • Platforms State of the Union (23:58)

3. Swift 6:

   • Swift 6 introduces a new language mode that provides concurrency safety guarantees, turning data races into compile-time issues, thereby improving the correctness and safety of your code.
   • What’s new in Xcode 16 (01:01)

4. Previews:

   • Xcode Previews now use a new dynamic linking architecture that avoids rebuilding your project when switching between previews and builds, making the workflow smoother and more productive.
   • Platforms State of the Union (37:45)
   • What’s new in Xcode 16 (02:49)

5. Debugging:

   • The debugging experience has been enhanced with features like a single view of your backtraces showing relevant code from all stack frames together, and a flame graph of your profiling data in Instruments.
   • What’s new in Xcode 16 (08:30)
   • Platforms State of the Union (26:38)

6. Organizer:

   • The Xcode Organizer has been updated to provide a wealth of analytics while preserving user privacy. This includes feedback and diagnostics from users who consent to sharing this information.
   • Xcode essentials (33:26)

These updates are designed to make developers more productive and improve the quality of their apps. For a more detailed overview, you can watch the full sessions on What’s new in Xcode 16 and Platforms State of the Union.