TypeScript 7 Beta ve tsgo: hizli compiler icin olculu gecis gerekir
Hiz CI ve editor deneyimini iyilestirebilir, fakat JSDoc, declaration emit, watch mode, LSP ve compiler API kullanan araclar ayri risk tasir.
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, Go tabanli native compiler getiriyor. Ekipler tsgo yu tsc ile yan yana dogrulamadan default yapmamali. This is especially relevant for large TypeScript codebases, monorepos, and teams where type-checking latency affects pull-request flow and editor responsiveness.
Pratik kontrol listesi
tsc baseline ini kaydedin, tsgo yu non-blocking CI job olarak ekleyin, hata ve .d.ts farklarini karsilastirin, VS Code preview u kucuk grupta deneyin ve rollback planini yazin.
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.