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TypeScript 4.9

Official TypeScript changelog summary with source attribution, release tags, and community reactions.

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TypeScript·4 years ago · Nov 17, 2022, 06:09 PMFixAI-assisted summary

Summary

Bumped TypeScript to version 4.9.3 (LKG) with updated packages and lockfiles.
Added new language service features and code fixes such as quick fix for non‑exported types, `for await of` codefix, and improved handling of generators, mapped types, and async arrow functions.
Fixed numerous bugs across diagnostics, refactorings, module resolution, and TypeScript server stability.

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related updates

TypeScript·2 months agoFeatureMay break your integration

Summary

The beta includes narrower inference for common conditional patterns.

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