Deferred module evaluation imports a module without immediately executing the module and its dependencies, avoiding unnecessary CPU work during initialization. TypeScript 5.9, an update to Microsoft’s ...

TypeScript 5.9 has reached the release candidate (RC) stage with enhancements for modern module behavior, hover tooltips, and deferred module evaluation. Microsoft announced the RC on July 25, ahead ...

TypeScript 7.0 became stable on July 8, 2026 — and for most of the tens of millions of professional web developers who depend on it daily, a single npm install -D typescript command now cuts build ...