The Swift Package Index logo.Swift Package Index

Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

When working with an Xcode project:

When working with a Swift Package Manager manifest:

Select a package version:



🌎 Utility package containing tools for byte manipulation, Codable, OS APIs, and debugging.

Vapor welcomes support for Core through GitHub Sponsors and Open Collective. If you find this package useful, please consider supporting it.


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