#Swift 6.4 is here!

InfoQ@techhub.social · 2026-07-02 20:32

#Swift 6.4 is here!

The latest release brings improvements & performance boosts: • Up to 4× faster URL parsing • Better C interoperability • Fine-grained warning control • Async support in defer • Improved Swift Testing / XCTest interoperability • Simplified OS availability checks & efficient noncopyable type iteration

🔗 Dive into the full update: https://bit.ly/4p1rANA

#Apple #iOS #SoftwareDevelopment #SwiftLang #InfoQ

Swift 6.4 Brings New Language Features and Swift Testing/XCTest Interop

Currently available as a beta in Xcode 27, Swift 6.4 introduces a range of enhancements: better C interoperability, simplified OS availability check, fine-grained warning control, async support in defer, efficient iteration for non-noncopyable types, up to 4x faster URL parsing, and improved interoperability between Swift Testing and XCTest.

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