whats new in swift?

Generated on 8/5/2024

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What's New in Swift

Swift 6 Language Mode

  • Data Race Safety: Swift 6 introduces a new language mode that provides data race safety guarantees, helping developers write correct concurrent programs. This is a significant improvement for ensuring safety in concurrent programming.
  • Non-Copyable Types: Swift 6 introduces non-copyable types, which can help optimize performance and memory usage by preventing unnecessary copies of data.
  • Embedded Swift: A new language subset called Embedded Swift is introduced, which can run on highly constrained systems, expanding the use cases for Swift.

Improvements and Features

  • Concurrency Model: Continued refinements to the concurrency model, including complete concurrency checking in Swift 5.10 and improvements in Swift 6.
  • C++ Interoperability: Enhancements to interoperability with C++, making it easier to integrate Swift with existing C++ codebases.
  • Typed Throws: Introduction of typed throws, allowing functions to specify the types of errors they can throw, improving error handling.
  • Low-Level Synchronization Primitives: New primitives for low-level synchronization, providing more control over concurrent programming.

Ecosystem and Tools

  • Swift Package Manager: Ongoing improvements to the Swift Package Manager, making it easier to manage dependencies and build Swift projects.
  • Swift Testing: New Swift testing APIs designed to be more productive and easier to use.
  • Swift Data: Introduction of Swift Data, a lightweight API for modeling and persisting app information.

Community and Cross-Platform

  • GitHub Migration: The Swift project is moving to a new organization on GitHub (swiftlang), which will include the Swift Compiler foundation and many more ecosystem packages.
  • Cross-Platform Development: Continued support for cross-platform development, including improvements to the Swift extension for VS Code and bi-directional interoperability with C.

SwiftUI Integration

  • SwiftUI Enhancements: SwiftUI has been updated to integrate seamlessly with the new Swift 6 language mode, including improvements to scrolling, custom containers, and more.

For more detailed information, you can watch the session What’s new in Swift starting at 17:03.