Swiftのオープンソース化、 Swift 3.0のロードマップSwift is Open Source! Finally! Swift is open source, under the Apache 2.0 license. Not only did we get the Swift source code, but also a surprise package manager! The package manager is also open source, so anyone can contribute to what is sure to be the new default dependency manager. We are so excited about this huge open source project! 🎉 Apple also launched swift.org, a new website for Swift
https://jp.techcrunch.com/2015/12/04/20151203apples-swift-programming-language-is-now-open-source/
