--- title: Speedier type checks in TypeScript 7.0 as first stable... description: TypeScript 7.0 has shipped as the first stable release featuring a complete rewrite of the TypeScript compiler in Go, delivering 8x–12x build speed... canonical: https://daily.dev/posts/speedier-type-checks-in-typescript-7-0-as-first-stable-go-release-ships-q7hxjbqdg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Speedier type checks in TypeScript 7.0 as first stable Go release ships | daily.dev og:description: TypeScript 7.0 has shipped as the first stable release featuring a complete rewrite of the TypeScript compiler in Go, delivering 8x–12x build speed... og:url: https://daily.dev/posts/speedier-type-checks-in-typescript-7-0-as-first-stable-go-release-ships-q7hxjbqdg og:image: https://api.daily.dev/og/posts/q7HxjbqdG.png og:image:alt: Speedier type checks in TypeScript 7.0 as first stable Go release ships 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. # Speedier type checks in TypeScript 7.0 as first stable Go release ships **[DEVCLASS](https://daily.dev/sources/devclass)** · 5 min read · 0 upvotes · 0 comments ## Summary TypeScript 7.0 has shipped as the first stable release featuring a complete rewrite of the TypeScript compiler in Go, delivering 8x–12x build speed improvements. The rewrite was driven by performance limitations of the original JavaScript-based compiler running on V8. Benchmarks show VSCode's 2.3 million lines of code now compiles in 10.6 seconds versus 125 seconds with TypeScript 6. The team chose Go over C# or Rust for its structural similarity to JavaScript, efficient memory allocation (with the ability to disable the GC for most compilations), native cross-platform support, and strong concurrency primitives. Real-world users like Slack, who previously couldn't run full type checks locally, can now do so again. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#performance](https://daily.dev/tags/performance), [#typescript](https://daily.dev/tags/typescript), [#golang](https://daily.dev/tags/golang), [#compiler](https://daily.dev/tags/compiler) [View this post on daily.dev](https://daily.dev/posts/speedier-type-checks-in-typescript-7-0-as-first-stable-go-release-ships-q7hxjbqdg) ```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":"Speedier type checks in TypeScript 7.0 as first stable Go release ships","url":"https://daily.dev/posts/speedier-type-checks-in-typescript-7-0-as-first-stable-go-release-ships-q7hxjbqdg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/speedier-type-checks-in-typescript-7-0-as-first-stable-go-release-ships-q7hxjbqdg"},"datePublished":"2026-07-10T14:51:35.284Z","dateModified":"2026-07-13T21:21:49.036Z","description":"TypeScript 7.0 has shipped as the first stable release featuring a complete rewrite of the TypeScript compiler in Go, delivering 8x–12x build speed...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1634ee8aa346de56a4fec6d7eff7ec66?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1634ee8aa346de56a4fec6d7eff7ec66?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"DEVCLASS","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":"DEVCLASS","logo":"https://media.daily.dev/image/upload/s--quq5_zKP--/f_auto/v1732552064/logos/devclass","url":"https://daily.dev/sources/devclass"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/speedier-type-checks-in-typescript-7-0-as-first-stable-go-release-ships-q7hxjbqdg","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"performance,typescript,golang,compiler","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"DEVCLASS","item":"https://daily.dev/sources/devclass"},{"@type":"ListItem","position":3,"name":"Speedier type checks in TypeScript 7.0 as first stable Go release ships"}]} ```