• Xcode 8 Release Notes: “Xcode 8.2 is the last release that will support Swift 2.3.”
• SE-0069: Mutability and Foundation Value Types
• Swift.org Migration Guide
• SE-0121: Remove Optional Comparison Operators
• Stack Overflow thread on NSURL changes in Swift 3
• Soroush: Emptiness
• Validated: “A Swift μ-Library for Somewhat Dependent Types”
• FileURL.swift
• PathKit: “Effortless path operations in Swift”
• Swift 3 Access Controls
• SE-0047: Defaulting non-Void functions so they warn on unused results
• SwiftLint Vertical Whitespace Rule
• Your Delegation Methods Might Not Be Called In Swift 3
• Stack Overflow: NSKeyedArchiver does not work in Swift 3
• Intro to git bisect from thoughtbot