--- title: Why Did My App Stop Working After Upgrading to the New Arch… description: Meta has deprecated the legacy React Native architecture starting from RN 0.82, forcing developers to migrate to the New Architecture. The migration involves... canonical: https://daily.dev/posts/why-did-my-app-stop-working-after-upgrading-to-the-new-arch--jdnafvtkv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Why Did My App Stop Working After Upgrading to the New Arch… | daily.dev og:description: Meta has deprecated the legacy React Native architecture starting from RN 0.82, forcing developers to migrate to the New Architecture. The migration involves... og:url: https://daily.dev/posts/why-did-my-app-stop-working-after-upgrading-to-the-new-arch--jdnafvtkv og:image: https://api.daily.dev/og/posts/JdNafvtKv.png og:image:alt: Why Did My App Stop Working After Upgrading to the New Arch… 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. # Why Did My App Stop Working After Upgrading to the New Arch… **[Software Mansion](https://daily.dev/sources/swmansion)** · 9 min read · 0 upvotes · 0 comments ## Summary Meta has deprecated the legacy React Native architecture starting from RN 0.82, forcing developers to migrate to the New Architecture. The migration involves more than flipping a flag — common pain points include outdated libraries, custom native modules, third-party SDK breakages, bridgeless mode changes, Reanimated version compatibility, Shadow Node rewrites for custom layouts, and Codegen typing challenges. Practical guidance covers staying up-to-date with dependencies, switching the flag early to surface issues, leveraging community workarounds, and using escape hatches like UnsafeMixed and Object types when Codegen cannot handle complex nested structures. Migrating to Reanimated 4 is recommended once stability is confirmed, to unlock CSS animations, Worklets, and Shared Element Transitions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Migrating to React Native's New Architecture \(2025\)](https://daily.dev/posts/migrating-to-react-native-s-new-architecture-2025--zgrmantrk) · Hacker News · 2 upvotes · 0 comments --- Tags: [#mobile](https://daily.dev/tags/mobile), [#react-native](https://daily.dev/tags/react-native) [View this post on daily.dev](https://daily.dev/posts/why-did-my-app-stop-working-after-upgrading-to-the-new-arch--jdnafvtkv) ```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":"Why Did My App Stop Working After Upgrading to the New Arch…","url":"https://daily.dev/posts/why-did-my-app-stop-working-after-upgrading-to-the-new-arch--jdnafvtkv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/why-did-my-app-stop-working-after-upgrading-to-the-new-arch--jdnafvtkv"},"datePublished":"2026-08-02T07:15:56.798Z","dateModified":"2026-08-02T07:42:27.342Z","description":"Meta has deprecated the legacy React Native architecture starting from RN 0.82, forcing developers to migrate to the New Architecture. 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