Microsoft Releases TypeScript 7.0 Beta with Go Rewrite
Original: Announcing TypeScript 7.0 Beta
Why This Matters
Major TypeScript rewrite promises 10x speed improvements for millions of developers
Microsoft announced TypeScript 7.0 Beta, featuring a complete rewrite from TypeScript to Go language. The new architecture delivers 10x performance improvements over version 6.0 through native code speed and parallel processing.
Microsoft released TypeScript 7.0 Beta, marking a significant milestone with the compiler completely rewritten in Go language. The year-long porting effort from the original TypeScript codebase delivers approximately 10x performance improvements through native code speed and shared memory parallelism. Despite the architectural change, type-checking logic remains structurally identical to TypeScript 6.0, ensuring compatibility. The beta has been tested extensively by internal Microsoft teams and external companies including Bloomberg, Canva, Figma, Google, Slack, and Vercel on multi-million line codebases. Users can install via 'npm install -D @typescript/native-preview@beta' and use the 'tsgo' executable. A VS Code extension 'TypeScript Native Preview' provides editor support with the same performance benefits.