TypeScript 7 Beta va tsgo: compiler nhanh can mot ke hoach chuyen doi
Toc do co the cai thien CI va editor, nhung rui ro nam o JSDoc cu, watch mode, LSP, declaration emit va cong cu noi bo dung TypeScript API.
What happened
Microsoft announced TypeScript 7.0 Beta on April 21, 2026. The beta is available as @typescript/native-preview@beta and runs through tsgo, so teams can compare it with TypeScript 6 tsc before changing their default toolchain.
Why it matters
TypeScript 7.0 Beta dua vao compiler native viet bang Go. Doi ngu nen chay tsgo song song voi tsc truoc khi doi mac dinh. This is especially relevant for large TypeScript codebases, monorepos, and teams where type-checking latency affects pull-request flow and editor responsiveness.
Checklist thuc te
Ghi baseline tsc, them tsgo vao CI khong chan release, so sanh diagnostics va .d.ts, thu VS Code preview voi nhom nho, va dat tieu chi rollout ro rang.
Risks
The official repository still marks the programmatic API as not ready, watch mode as prototype, and LSP work as in progress. Teams with legacy JavaScript, CommonJS, Closure-style JSDoc, or compiler-API tooling should validate those areas separately.