The grand renaming
Let's start with the proposals for the Swift API Design Guidelines. The Grand Renaming proposals represent, collectively, a very large undertaking and are covered by proposals SE-0005, SE-0006, SE-0086, and SE-0088. Implementing the API guidelines represents the largest change to the language for Swift 3. I couldn't possibly cover every API change resulting in the Grand Renaming proposals in this short book. Thankfully, you don't have to understand every line that changed in the libraries to be productive with Swift 3. You have two fantastic resources that will pay dividends with very little effort on your part. The first resource is the Swift migration tool which converts existing Swift projects to the latest syntax. When you use the Swift migrator, you can convert your Swift 2.2 projects to Swift 3 and receive most of the changes for free. The second extremely valuable resource is the Swift API Guidelines, which were developed to help make your code more Swifty. The...