--- title: WebKit features for Safari 26.3 | daily.dev description: Safari 26.3 introduces Zstandard compression for faster content delivery, adds AbortSignal support to the Navigation API for better control over interrupted... canonical: https://daily.dev/posts/webkit-features-for-safari-26-3-bitqud2u2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: WebKit features for Safari 26.3 | daily.dev og:description: Safari 26.3 introduces Zstandard compression for faster content delivery, adds AbortSignal support to the Navigation API for better control over interrupted... og:url: https://daily.dev/posts/webkit-features-for-safari-26-3-bitqud2u2 og:image: https://api.daily.dev/og/posts/BItQUD2U2.png og:image:alt: WebKit features for Safari 26.3 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. # WebKit features for Safari 26.3 **[WebKit](https://daily.dev/sources/webkit)** · 4 min read · 1 upvotes · 0 comments ## Summary Safari 26.3 introduces Zstandard compression for faster content delivery, adds AbortSignal support to the Navigation API for better control over interrupted navigations in SPAs, and enables automatic environment dimming for fullscreen video in visionOS. The release includes numerous bug fixes for CSS anchor positioning, multi-column layouts, text decoration, media playback, HDR image rendering, and Safe Browsing behavior. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [WebKit Features in Safari 26.0](https://daily.dev/posts/webkit-features-in-safari-26-0-bwpkxmges) · WebKit · 0 upvotes · 0 comments - [WebKit Features for Safari 26.4](https://daily.dev/posts/webkit-features-for-safari-26-4-vxvtsrmcb) · WebKit · 10 upvotes · 0 comments - [WebKit Features for Safari 26.1](https://daily.dev/posts/webkit-features-for-safari-26-1-vjovwwsfm) · WebKit · 8 upvotes · 0 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#performance](https://daily.dev/tags/performance), [#css](https://daily.dev/tags/css), [#safari](https://daily.dev/tags/safari) [View this post on daily.dev](https://daily.dev/posts/webkit-features-for-safari-26-3-bitqud2u2) ```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":"WebKit features for Safari 26.3","url":"https://daily.dev/posts/webkit-features-for-safari-26-3-bitqud2u2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/webkit-features-for-safari-26-3-bitqud2u2"},"datePublished":"2026-02-11T18:34:36.837Z","dateModified":"2026-02-11T18:34:59.146Z","description":"Safari 26.3 introduces Zstandard compression for faster content delivery, adds AbortSignal support to the Navigation API for better control over interrupted...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f99270e5ab9e158b3de53c079b84100e?_a=AQAEunF","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f99270e5ab9e158b3de53c079b84100e?_a=AQAEunF","isAccessibleForFree":true,"articleSection":"WebKit","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":"WebKit","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/webkit","url":"https://daily.dev/sources/webkit"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/webkit-features-for-safari-26-3-bitqud2u2","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"webdev,performance,css,safari","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"WebKit","item":"https://daily.dev/sources/webkit"},{"@type":"ListItem","position":3,"name":"WebKit features for Safari 26.3"}]} ```