TypeScript 7.1 Beta: The API Is Back, and Vue, Svelte, and Angular Can Follow
TypeScript 7.1 Beta landed on October 20, 2026. When TypeScript 7.0 shipped in July, the Go-based compiler was fast but had one big gap: there was no programmatic API. 7.1 closes it. It brings a new, stable-track compiler API, a plugin point called content mappers for non-TypeScript files like .vue components, and another big round of performance work. It also adds a few language and lib features. This post covers what changed, what it unblocks, and whether you should try the beta now.



