Are there improvements for Swift Macros?

Asked on 06/13/2025

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Yes, there are improvements for Swift Macros. In Swift 6.2, there have been significant enhancements to the build process for projects that use macro-based APIs. Specifically, Swift 6.2 improves clean build times by optimizing the handling of Swift syntax dependencies, which are crucial for macros. This optimization reduces the time needed for clean builds, especially in continuous integration environments, by supporting prebuilt Swift syntax dependencies. This change can significantly speed up the build process for projects using macros, as it eliminates an expensive build step and can reduce clean build times by minutes for some projects. You can learn more about these improvements in the session What’s new in Swift.

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What’s new in Swift

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