swift new
Asked on 06/16/2025
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At WWDC, Apple introduced several updates and new features for Swift, particularly in the sessions titled "What’s new in Swift" from both 2024 and 2025. Here are some highlights:
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Swift 6 and 6.2 Enhancements:
- Swift 6 introduces a new language mode that achieves data race safety, expanding Swift's safety guarantees to concurrent programs. This is a significant step in making concurrent programming easier and safer (Platforms State of the Union).
- Swift 6.2 brings improvements to development workflows, including writing, building, and debugging code. It also introduces a feature called Strict Memory Safety, which requires explicit acknowledgment of unsafe API usage in source code (What’s new in Swift).
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Development Tools and Interoperability:
- The Swift extension in the VS Code Marketplace is now officially verified and distributed by Swift.org, with new features like background indexing enabled by default for SwiftPM projects (What’s new in Swift).
- Swift's interoperability with C, Objective-C, and Java has been enhanced, allowing for more seamless integration and adoption in existing codebases (What’s new in Swift).
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Swift on Server:
- Swift is increasingly being used in server-side applications, with significant performance improvements and cost reductions reported by companies like Cultured Code for their Things Cloud service (What’s new in Swift).
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Language Features:
- New language features include non-copyable types and improvements to concurrency models, such as async/await and actors, which continue to evolve (What’s new in Swift).
These updates reflect Apple's ongoing commitment to making Swift a powerful, safe, and versatile programming language for a wide range of applications, from app development to server-side programming.
What’s new in Swift
Join us for an update on Swift. We’ll talk about workflow improvements that make you more productive, and new and modernized library APIs for fundamental programming tasks. We’ll show examples of Swift adoption throughout more layers of the software stack. Finally, we’ll explore new language features for both improving approachability of concurrency, and achieving peak performance when you need it.
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.
Platforms State of the Union
Discover the newest advancements on Apple platforms.