Microsoft has released TypeScript 7.0.2, featuring a complete native Go rewrite of the compiler, which significantly reduces build times by 8x to 12x for major codebases such as VS Code and Sentry. However, this release does not include a public programmatic API, meaning developers will need to continue using @typescript/typescript6 until version 7.1 is available in about three months. The new version also removes long-deprecated configuration flags and shifts several defaults to true, while offering improvements in memory usage and build speed. Although editor integration is available, tools that embed TypeScript will have to wait for the new API, and users should prepare for some migration challenges due to changed defaults and stricter error handling

TypeScript 7.0.2 Ships Stable: Corsа Native Go Rewrite Delivers 12x Build Speeds

Microsoft has shipped TypeScript 7.0.2, delivering a complete native Go rewrite of the compiler that benchmarks show cuts build times by 8x to 12x on major codebases like VS Code and Sentry. The release deliberately excludes a public programmatic API to avoid breaking the ecosystem, so tooling maintainers and plugin authors will need to stick with @typescript/typescript6 until version 7.1 arrives in roughly three months. Alongside the speed gains, Microsoft removed long-deprecated configuration flags, shifted strict and noUncheckedSideEffectImports to true by default, and rebuilt the file watcher using a Go port of @parcel/watcher. Real-world adoption during the preview phase already reports massive CI savings, though embedded editor tooling like Svelte and Angular will have to wait for the upcoming API before leveraging the native compiler.

TypeScript 7.0.2 Ships Stable: Corsа Native Go Rewrite Delivers 12x Build Speeds @ NT Compatible