--- title: Hermes V1 by Default · React Native | daily.dev description: React Native 0.84 makes Hermes V1 the default JavaScript engine, delivering automatic performance improvements and reduced memory usage. The release enables... canonical: https://daily.dev/posts/hermes-v1-by-default-react-native-obv7ttair twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Hermes V1 by Default · React Native | daily.dev og:description: React Native 0.84 makes Hermes V1 the default JavaScript engine, delivering automatic performance improvements and reduced memory usage. The release enables... og:url: https://daily.dev/posts/hermes-v1-by-default-react-native-obv7ttair og:image: https://api.daily.dev/og/posts/oBV7ttAiR.png og:image:alt: Hermes V1 by Default · React Native 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. # Hermes V1 by Default · React Native **[React Native](https://daily.dev/sources/react_native)** · 5 min read · 49 upvotes · 0 comments ## Summary React Native 0.84 makes Hermes V1 the default JavaScript engine, delivering automatic performance improvements and reduced memory usage. The release enables precompiled iOS binaries by default to speed up build times, continues removing Legacy Architecture code from both platforms, and requires Node.js 22.11 minimum. Additional updates include React 19.2.3, ESLint v9 Flat Config support, enhanced accessibility features, improved URL API compliance, and support for additional image formats like HEIC and HEIF. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [A New Era · React Native](https://daily.dev/posts/a-new-era-react-native-eizv3agrm) · React Native · 260 upvotes · 20 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#android](https://daily.dev/tags/android), [#ios](https://daily.dev/tags/ios), [#react-native](https://daily.dev/tags/react-native) [View this post on daily.dev](https://daily.dev/posts/hermes-v1-by-default-react-native-obv7ttair) ```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":"Hermes V1 by Default · React Native","url":"https://daily.dev/posts/hermes-v1-by-default-react-native-obv7ttair","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/hermes-v1-by-default-react-native-obv7ttair"},"datePublished":"2026-02-11T18:03:55.412Z","dateModified":"2026-02-11T18:04:13.762Z","description":"React Native 0.84 makes Hermes V1 the default JavaScript engine, delivering automatic performance improvements and reduced memory usage. The release enables...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ef223cf76396449f77ab357128a21e16?_a=AQAEunF","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ef223cf76396449f77ab357128a21e16?_a=AQAEunF","isAccessibleForFree":true,"articleSection":"React Native","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"React Native","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/react_native","url":"https://daily.dev/sources/react_native"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/hermes-v1-by-default-react-native-obv7ttair","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":49},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"javascript,android,ios,react-native","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"React Native","item":"https://daily.dev/sources/react_native"},{"@type":"ListItem","position":3,"name":"Hermes V1 by Default · React Native"}]} ```