Daniel Rosenwasser, principal product manager at Microsoft, announced the release of TypeScript 5.8. The new release features, as usual, better type inference. It also improves performance and the ...

Checked Returns for Conditional and Indexed Access Types: TypeScript 5.8 enhances type inference by allowing functions to have return types that depend on their parameters. This means that the return ...

TypeScript 4.7 and 4.8 introduce ES Module (ESM) support for Node.js, improved type inference and control flow analysis, and significant performance improvements.

Microsoft shipped TypeScript 5.8 with improved type checking in some scenarios, but thorny problems caused the dev team to delay related work to the next release.