--- title: Automatic property observation in UIKit with @Observable description: UIKit now supports Swift Observation natively, automatically tracking reads of @Observable class properties in update methods. On iOS 26, the new... canonical: https://daily.dev/posts/automatic-property-observation-in-uikit-with-observable-seeivdzy6 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Automatic property observation in UIKit with @Observable | daily.dev og:description: UIKit now supports Swift Observation natively, automatically tracking reads of @Observable class properties in update methods. On iOS 26, the new... og:url: https://daily.dev/posts/automatic-property-observation-in-uikit-with-observable-seeivdzy6 og:image: https://api.daily.dev/og/posts/seEiVDzy6.png og:image:alt: Automatic property observation in UIKit with @Observable 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. # Automatic property observation in UIKit with @Observable **[Nil Coalescing](https://daily.dev/sources/nilcoalescing)** · 4 min read · 0 upvotes · 0 comments ## Summary UIKit now supports Swift Observation natively, automatically tracking reads of @Observable class properties in update methods. On iOS 26, the new updateProperties() method is the recommended place for this, while iOS 18 support can be enabled via a UIObservationTrackingEnabled Info.plist key using viewWillLayoutSubviews(). This eliminates the need for manual withObservationTracking() calls and makes it straightforward to share reactive state between UIKit views and embedded SwiftUI components. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [SwiftUI data dependencies and their effect on view updates](https://daily.dev/posts/swiftui-data-dependencies-and-their-effect-on-view-updates-2kp42i6if) · Nil Coalescing · 1 upvotes · 0 comments - [Who Told The View To Update?](https://daily.dev/posts/who-told-the-view-to-update--xvxtydysb) · Medium · 0 upvotes · 0 comments - [@StateObject vs. @ObservedObject: The differences explained](https://daily.dev/posts/stateobject-vs-observedobject-the-differences-explained-m59jsolm0) · SwiftLee · 0 upvotes · 0 comments - [From Property-Level Reactivity to a Freer Mental Model](https://daily.dev/posts/from-property-level-reactivity-to-a-freer-mental-model-4zl1mw6kr) · Fatbobman · 0 upvotes · 0 comments --- Tags: [#ios](https://daily.dev/tags/ios), [#swift](https://daily.dev/tags/swift), [#swiftui](https://daily.dev/tags/swiftui) [View this post on daily.dev](https://daily.dev/posts/automatic-property-observation-in-uikit-with-observable-seeivdzy6) ```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":"Automatic property observation in UIKit with @Observable","url":"https://daily.dev/posts/automatic-property-observation-in-uikit-with-observable-seeivdzy6","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/automatic-property-observation-in-uikit-with-observable-seeivdzy6"},"datePublished":"2026-08-02T07:15:07.923Z","dateModified":"2026-08-24T06:58:53.394Z","description":"UIKit now supports Swift Observation natively, automatically tracking reads of @Observable class properties in update methods. 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