Overview
Multi-year shift of typescript from JS-hosted tooling to a native Go toolchain (project-corsa), culminating in typescript-7 GA (2026-07-08). Ecosystem migration incomplete until programmatic API lands in 7.1.
Timeline
- 2025-03: Native port publicly announced (Anders Hejlsberg)
- 2026-04: TS 7.0 Beta
- 2026-06-18: TS 7.0 RC on npm
- 2026-07-08: typescript-7 GA
- 2026-H2 (expected): 7.1 API for typescript-eslint / frameworks
Key Players
Analysis
Biggest structural change to mainstream frontend tooling since TypeScript’s launch. CI cost and editor UX on large monorepos drop sharply; framework/ESLint ecosystems temporarily bifurcate via @typescript/typescript6.