--- title: Ship smaller OTA updates: bundle diffing comes to EAS... description: Expo SDK 55 introduces bundle diffing in EAS Update, allowing devices to download binary patches instead of full bundles when receiving over-the-air updates.... canonical: https://daily.dev/posts/ship-smaller-ota-updates-bundle-diffing-comes-to-eas-update-in-sdk-55-yayu6sakt twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Ship smaller OTA updates: bundle diffing comes to EAS Update in SDK 55 | daily.dev og:description: Expo SDK 55 introduces bundle diffing in EAS Update, allowing devices to download binary patches instead of full bundles when receiving over-the-air updates.... og:url: https://daily.dev/posts/ship-smaller-ota-updates-bundle-diffing-comes-to-eas-update-in-sdk-55-yayu6sakt og:image: https://api.daily.dev/og/posts/yayU6sAKT.png og:image:alt: Ship smaller OTA updates: bundle diffing comes to EAS Update in SDK 55 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. # Ship smaller OTA updates: bundle diffing comes to EAS Update in SDK 55 **[Expo Blog](https://daily.dev/sources/expo-blog)** · 4 min read · 0 upvotes · 0 comments ## Summary Expo SDK 55 introduces bundle diffing in EAS Update, allowing devices to download binary patches instead of full bundles when receiving over-the-air updates. Using the bsdiff algorithm, patches reduce download sizes by approximately 75% — a typical 3MB update could shrink to ~0.75MB. The feature is opt-in and in beta, enabled via a single config flag (`enableBsdiffPatchSupport: true`). Current limitations include no support for embedded bundles as a base, patches only precomputed against the second-newest update, and a brief delay after publishing before patches are available. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to keep your OTA updates lean and fast](https://daily.dev/posts/how-to-keep-your-ota-updates-lean-and-fast-5kfgiyuhb) · Expo Blog · 0 upvotes · 0 comments --- Tags: [#react-native](https://daily.dev/tags/react-native) [View this post on daily.dev](https://daily.dev/posts/ship-smaller-ota-updates-bundle-diffing-comes-to-eas-update-in-sdk-55-yayu6sakt) ```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":"Ship smaller OTA updates: bundle diffing comes to EAS Update in SDK 55","url":"https://daily.dev/posts/ship-smaller-ota-updates-bundle-diffing-comes-to-eas-update-in-sdk-55-yayu6sakt","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/ship-smaller-ota-updates-bundle-diffing-comes-to-eas-update-in-sdk-55-yayu6sakt"},"datePublished":"2026-03-22T11:31:07.436Z","dateModified":"2026-03-22T11:37:40.096Z","description":"Expo SDK 55 introduces bundle diffing in EAS Update, allowing devices to download binary patches instead of full bundles when receiving over-the-air updates....","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c7481a250f7901e4e05e2c22ed4828fb?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c7481a250f7901e4e05e2c22ed4828fb?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Expo Blog","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":"Expo Blog","logo":"https://media.daily.dev/image/upload/s--E7LK6L3y--/f_auto,q_auto/v1774179051/logos/expo-blog?_a=BAMAMiWQ0","url":"https://daily.dev/sources/expo-blog"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/ship-smaller-ota-updates-bundle-diffing-comes-to-eas-update-in-sdk-55-yayu6sakt","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"react-native","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Expo Blog","item":"https://daily.dev/sources/expo-blog"},{"@type":"ListItem","position":3,"name":"Ship smaller OTA updates: bundle diffing comes to EAS Update in SDK 55"}]} ```