TypeScript 5.0, due from Microsoft as a production release on March 16, has been restructured around the use of ECMAScript modules, a major infrastructure change for the strongly typed JavaScript variant.

Users of TypeScript 5.0, which currently is in a release candidate stage, will need to run Node.js 12 at a minimum. In return, npm installs promise to execute a little faster and take up less space, with the typescript package sized reduced by roughly 46%, Microsoft said in a March 9 bulletin. TypeScript too will be faster, with build times cut by 10% to 25%. API consumers of TypeScript likely will be unaffected.

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