ZIP Foundation is a library to create, read and modify ZIP archive files. It is written in Swift and based on Apple's libcompression for high performance and energy efficiency. To learn more about the performance characteristics of the framework, you can read this blog post. Swift Package Manager is a dependency manager currently under active development. To learn how to use the Swift Package Manager for your project, please read the official documentation. The ZIP Foundation package uses the V4 Package Description API. To add ZIP Foundation as a dependency, you have to add it to the dependencies of your Package.swift file and refer to that dependency in your target.