swift 6.2
Asked on 06/11/2025
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Swift 6.2 was introduced at WWDC 2025, bringing a range of new features and improvements aimed at enhancing productivity for Swift programmers. Here are some key highlights from the session titled "What’s new in Swift":
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Development Workflow Improvements: Swift 6.2 includes enhancements for writing, building, and debugging code. Notably, the Swift extension in VS Code is now officially verified and distributed by Swift.org, with features like background indexing enabled by default for SwiftPM projects. This improves editor features such as "Jump to Definition" (What’s new in Swift).
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Performance Enhancements: The language has evolved to make concurrency more approachable and to help achieve peak performance. For instance, the array type has been optimized for better performance (What’s new in Swift).
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Embedded Swift: Swift 6.2 expands the use of Embedded Swift, a subset of Swift for constrained environments like firmware for embedded devices. This allows developers to write code targeting low-level software, such as the coprocessor in iOS 26 (What’s new in Swift).
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Concurrency Improvements: Swift 6.2 introduces changes to make concurrency more approachable, with a focus on data race safety. The language now stays single-threaded by default until concurrency is explicitly introduced, making it easier to write data race-free code (What’s new in Swift).
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Strict Memory Safety: A new feature called Strict Memory Safety requires explicit acknowledgment of unsafe API usage in source code, enhancing security (What’s new in Swift).
These updates reflect Swift's ongoing commitment to safety, performance, and ease of use, making it a versatile language for a wide range of applications, from apps to cloud services and embedded systems.
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.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
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.