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Announcing Lottie 4.0 for iOS
A new rendering engine with significant performance improvements powered by Core Animation

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I wrote an app for observing how various SwiftUI constructs and container views affect view lifecycles, including the lifetime of state.

This week I published the biggest ever update to SwiftUI by Example, adding lots of new sample code plus 100 new Xcode projects to download.
One of the goals of the Swift team with Swift’s concurrency features is to provide a model that allows developer to write safe code by default. This means that there’s a lot of time and energy…

Swift has a lot to offer, but it isn't always obvious how to get the most out of the language. I often see developers compromise the APIs they build by using stringly typed code while Swift provides features that make stringly typed code unnecessary. In this series, I show you how a handful of simple patterns and techniques can help you build APIs that are type-safe, elegant, and intuitive to use.

Learn two ways to check if an array contains a given element.

News & Updates
Starting January 18, 2023, the App Store receipt signing certificate will use a new WWDR intermediate certificate. The existing intermediate certificate expires on February 7, 2023.
Apple will cancel or postpone mass production for the planned 2024 iPhone SE 4, Apple analyst Ming-Chi Kuo said today in a series of tweets.