What's new in Xcode 16.2
Asked on 02/14/2025
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Xcode 16.2 introduces several new features and improvements to enhance the development experience. Here are some highlights:
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Code Completion: Xcode 16.2 features an innovative new engine for code completion, powered by a 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.
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Swift 6: The new Swift 6 language mode provides concurrency safety guarantees, turning data races into compile-time issues, which improves the correctness and safety of your code.
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Build System: Xcode 16.2 supercharges builds with explicit modules, offering improved parallelism, better diagnostics, and faster debugging. For C and Objective-C, explicit modules are on by default, while for Swift, you need to opt in.
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Previews: There are improvements in UI previews, making them faster and more integrated with your model. New APIs like the
previewablemacro make previews simpler to write and more reusable. -
Debugging and Diagnostics: The thread performance checker now shows excessive disk write and slow app launch diagnostics, helping you improve app performance. The organizer provides a new category of diagnostic logs for app launches.
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Instruments: Xcode 16.2 introduces flame graphs for visualizing call stacks, which is a great way to find performance issues.
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StoreKit Enhancements: Updates to StoreKit configuration allow you to test your app's privacy policy and license agreement locally, and test localizations for your subscription groups' display names.
For more detailed information, you can refer to the session What’s new in Xcode 16.
Demystify explicitly built modules
Explore how builds are changing in Xcode 16 with explicitly built modules. Discover how modules are used to build your code, how explicitly built modules improve transparency in compilation tasks, and how you can optimize your build by sharing modules across targets.
What’s new in Xcode 16
Discover the latest productivity and performance improvements in Xcode 16. Learn about enhancements to code completion, diagnostics, and Xcode Previews. Find out more about updates in builds and explore improvements in debugging and Instruments.
What’s new in StoreKit and In-App Purchase
Learn how to build and deliver even better purchase experiences using the App Store In-App Purchase system. We’ll demo new StoreKit views control styles and new APIs to improve your subscription customization, discuss new fields for transaction-level information, and explore new testability in Xcode. We’ll also review an important StoreKit deprecation.