--- title: What's new in Swift: June 2026 Edition | daily.dev description: A monthly roundup covers Swift news from WWDC26 and the broader community. Apple is writing parts of the OS kernel in Swift, previewed Swift 6.4 features like... canonical: https://daily.dev/posts/what-s-new-in-swift-june-2026-edition-6curm3xzv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: What's new in Swift: June 2026 Edition | daily.dev og:description: A monthly roundup covers Swift news from WWDC26 and the broader community. Apple is writing parts of the OS kernel in Swift, previewed Swift 6.4 features like... og:url: https://daily.dev/posts/what-s-new-in-swift-june-2026-edition-6curm3xzv og:image: https://api.daily.dev/og/posts/6curM3xzV.png og:image:alt: What's new in Swift: June 2026 Edition og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # What's new in Swift: June 2026 Edition **[Swift.org](https://daily.dev/sources/swift)** · 6 min read · 0 upvotes · 0 comments ## Summary A monthly roundup covers Swift news from WWDC26 and the broader community. Apple is writing parts of the OS kernel in Swift, previewed Swift 6.4 features like faster URL parsing and async support in defer blocks, open-sourced a Swift-rewritten QUIC transport layer, released Foundation Models framework utilities, and introduced Container Machine for lightweight Linux environments on Mac. Community highlights include Swift Package Index joining Apple, a new Networking workgroup, package releases (Kiln, Elementary UI, OkHttp Swift bindings), and Swift Evolution proposals under review or recently accepted, including withDeadline, yielding accessors, FilePath in the standard library, and UniqueArray. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What new features are coming in Swift 6.4? Swift 6.4 previews include up to 4x faster URL parsing and support for using async code inside defer blocks, both announced during the WWDC26 'What's new in Swift' session. These changes were shown as upcoming rather than shipped, so exact release timing may still shift before general availability. _Developers tracking Swift roadmap changes can follow updates like these on daily.dev._ ### What does the SE-0526 withDeadline proposal add to Swift concurrency? SE-0526 proposes a withDeadline function that runs an async operation with a composable absolute time limit set by a clock instant, canceling the operation if it does not finish in time. It lets nested operations share the same deadline, avoiding the timing drift that builds up when relative durations pass through multiple call layers. _Anyone evaluating Swift concurrency proposals can track evolving APIs like this on daily.dev._ ### Why is FilePath being added directly to the Swift standard library instead of staying in swift-system? FilePath is moving into the core Swift module because shipping it only as an external package in swift-system prevents the standard library, Swift runtime, and toolchain libraries like Foundation from depending on it. SE-0529 adds FilePath and related types to the Swift module with support for construction, decomposition, resolution, and C interoperability. _Developers deciding how to handle file paths in Swift can follow proposals like this on daily.dev._ ## Similar posts on daily.dev - [What's new in Swift: September 2026 Edition](https://daily.dev/posts/what-s-new-in-swift-september-2026-edition-jbb9id8sh) · Swift.org · 0 upvotes · 0 comments - [What's new in Swift: August 2026 Edition](https://daily.dev/posts/what-s-new-in-swift-august-2026-edition-s1flmnere) · Swift.org · 1 upvotes · 0 comments - [Is Anyone Else Excited by Swift’s Progress as a Language? -- Fatbobman's Swift Weekly \#141](https://daily.dev/posts/is-anyone-else-excited-by-swift-s-progress-as-a-language----fatbobman-s-swift-weekly-141-8fi091hrq) · Fatbobman · 0 upvotes · 0 comments - [Stability > New Features -- Fatbobman's Swift Weekly \#138](https://daily.dev/posts/stability-new-features----fatbobman-s-swift-weekly-138-e3zsz6sd3) · Fatbobman · 0 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#apple](https://daily.dev/tags/apple), [#swift](https://daily.dev/tags/swift), [#wwdc](https://daily.dev/tags/wwdc) [View this post on daily.dev](https://daily.dev/posts/what-s-new-in-swift-june-2026-edition-6curm3xzv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"What's new in Swift: June 2026 Edition","url":"https://daily.dev/posts/what-s-new-in-swift-june-2026-edition-6curm3xzv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/what-s-new-in-swift-june-2026-edition-6curm3xzv"},"datePublished":"2026-08-23T12:17:01.795Z","dateModified":"2026-08-23T12:19:13.450Z","description":"A monthly roundup covers Swift news from WWDC26 and the broader community. 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