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whats-new-in-swift-5-6

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# What’s new in Swift 5.6?

This is an Xcode playground that demonstrates the new features introduced in Swift 5.6:

* Introduce existential any
* Type placeholders
* Allow coding of non `String`/`Int` keyed `Dictionary` into a `KeyedContainer`
* Unavailability condition
* More concurrency changes
* Plugins for Swift Package Manager

This is designed to complement my existing article [What’s New in Swift 5.6](https://www.hackingwithswift.com/articles/247/whats-new-in-swift-5-6). You might also want to read previous articles about the evolution of Swift 5:

- [What’s New in Swift 5.5](https://www.hackingwithswift.com/articles/233/whats-new-in-swift-5-5)
- [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, you can find a complete breakdown of all Swift changes from 1.0 through 5.6, including downloadable playgrounds, here: [what's new in Swift](https://www.hackingwithswift.com/swift).

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

![Screenshot of Xcode 13.3 running this playground.](https://raw.githubusercontent.com/twostraws/whats-new-in-swift-5-6/main/playground-screenshot.png)

whats-new-in-swift-5-6

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