One of the most impactful things we’ve worked on in TypeScript 5.0 isn’t a feature, a bug fix, or a data structure optimization. Instead, it’s an infrastructure change. In TypeScript 5.0, we restructured our entire codebase to use ECMAScript modules, and switched to a newer emit target.
원문출처 : https://devblogs.microsoft.com/typescript/typescripts-migration-to-modules
원문출처 : https://devblogs.microsoft.com/typescript/typescripts-migration-to-modules