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Swift 6.4 Released September 15, 2026 Swift 6.4 is now available. Swift aims to be a great choice across the stack, from apps and servers to systems code, embedded devices, and the browser. This release deepens that support, and makes everyday code easier to write. Highlights include: Read more

• Developer Tools

  Module Tracking in Swift Debug Info September 11, 2026

  When your Swift program hits a breakpoint and stops so you can inspect it, the debugger’s expression evaluator has to find the exact Swift module your code was built from. Until now, that lookup wasn’t always precise. The upcoming Swift 6.4 release will include changes, begun in Swift 6.3, that address this by updating how the Swift compiler references explicitly-built Swift modules in debug info.

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• Digest

  What's new in Swift: August 2026 Edition September 4, 2026

  Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community.

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• Adopters

  Swift at Apple: Migrating the TrueType Hinting Interpreter June 12, 2026

  TrueType is a widely used vector font standard for rendering text in web pages, PDFs, operating systems, and applications. Familiar fonts like Helvetica, Garamond, and Monaco are all built on TrueType outlines. The format specifies a hinting interpreter intended to help outlines rasterize faithfully on low-resolution displays. Modern high-resolution displays enable beautiful typography from outlines alone, but TrueType fonts that need hinting to render legibly remain in use and we continue to support them. Font parsers process data from untrusted sources, making the TrueType hinting interpreter a security-critical attack surface. To make the format more resilient on Apple platforms, we rewrote its hinting interpreter from C to memory-safe Swift for the Fall 2025 releases. In addition to memory safety, we also improved performance: on average, our Swift interpreter runs 13% faster than the C interpreter it replaced. To accompany this post, we’ve also published the source code of the Swift TrueType hinting interpreter. We hope sharing our experience helps others doing similar work in Swift.

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• Community

  Announcing the Networking Workgroup June 4, 2026

  The Swift Ecosystem Steering Group is excited to announce the creation of the Networking workgroup! Workgroups are community-led efforts, formally recognized by the project, to advance key areas of Swift.

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