• String Manifesto: https://github.com/apple/swift/blob/master/docs/StringManifesto.md
• Chris Lattner on Swift 4 goals including String re-evaluation: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160725/025676.html
• Ole Begemann:
  • Why String.CharacterView is not a MutableCollection: https://oleb.net/blog/2017/02/why-is-string-characterview-not-a-mutablecollection/
  • One for the Unicode Nerds: https://oleb.net/blog/2014/06/one-for-the-unicode-nerds/
• Objc.io article on unicode: https://www.objc.io/issues/9-strings/unicode/
• Unsafe API proposal: https://github.com/apple/swift/pull/7479
• SipHash:
  • https://github.com/apple/swift/blob/master/stdlib/public/core/SipHash.swift.gyb
  • https://github.com/apple/swift/pull/4621

Thank You

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