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https://github.com/twostraws/whats-new-in-swift-5-5

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Host: GitHub
URL: https://github.com/twostraws/whats-new-in-swift-5-5
Owner: twostraws
Created: 2021-06-06T03:52:36.000Z (over 3 years ago)
Default Branch: main
Last Pushed: 2021-09-20T08:37:08.000Z (about 3 years ago)
Last Synced: 2024-07-05T13:46:07.001Z (3 months ago)
Language: Swift
Size: 179 KB
Stars: 312
Watchers: 13
Forks: 17
Open Issues: 1
Metadata Files:
- Readme: README.md

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README

        # What’s new in Swift 5.5?

This is an Xcode playground that demonstrates the new features introduced in Swift 5.5: 

 * Async await

 * Async sequences

 * Effectful read-only properties

 * Structured concurrency

 * `async let` bindings

 * Continuations for interfacing async tasks with synchronous code

 * Actors

 * Global actors

 * Sendable and @Sendable closures

 * `if` for postfix member expressions

 * Allow interchangeable use of `CGFloat` and `Double` types

 * Codable synthesis for enums with associated values

 * `lazy` now works in local contexts

 * Extend property wrappers to function and closure parameters

 * Extending static member lookup in generic contexts

This is designed to complement my existing article [What’s New in Swift 5.5](https://www.hackingwithswift.com/articles/233/whats-new-in-swift-5-5). You might also want to read previous articles about the evolution of Swift 5:

- [What’s New in Swift 5.4](https://www.hackingwithswift.com/articles/228/whats-new-in-swift-5-4)

- [What’s New in Swift 5.3](https://www.hackingwithswift.com/articles/218/whats-new-in-swift-5-3)

- [What’s New in Swift 5.2](https://www.hackingwithswift.com/articles/212/whats-new-in-swift-5-2)

- [What’s New in Swift 5.1](https://www.hackingwithswift.com/articles/182/whats-new-in-swift-5-1)

- [What’s New in Swift 5.0](https://www.hackingwithswift.com/articles/126/whats-new-in-swift-5-0)

Alternatively, I have a whole website dedicated to tracking [what's new in Swift](https://www.whatsnewinswift.com) – you should check it out at .

If you hit problems or have questions, you're welcome to tweet me [@twostraws](https://twitter.com/twostraws) or email .

![Screenshot of Xcode 12.5 running this playground.](playground-screenshot.png)