Antoine van der Lee • 6/21/2026

Swift 6.4: What’s New in Concurrency

This article covers the new concurrency features introduced in Swift 6.4, released during WWDC 2026. It highlights key changes like async defer statements (SE-0493), which allow calling asynchronous functions inside defer bodies for cleaner cleanup code. The author also explains how they track Swift Evolution proposals to keep developers informed, and provides context on other concurrency-related improvements. Aimed at iOS and Swift developers, the article offers practical examples and insights into the language's evolution.

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#concurrency #async #Swift