Home / DEVTOOLS / TypeScript / v4.6.3
TypeScript v4.6.3stable Released Mar 24, 2022
Impact Score: 5/10

TypeScript 4.6.3

Source available — automated, not human-reviewed

Component: typescript · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes
$ npm install --save-dev --save-exact [email protected]
📄 .MD
⚡ Improvements 1 🔧 Bug Fixes 5
⚡ Executive Summary (TL;DR)

TypeScript v4.6.3. Source highlight: This release includes fixes for

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

⚡ Performance & Enhancements (1)

  • improved results from the TypeScript API's `preProcessFile` function

🔧 Bug Fixes & Patches (5)

  • an incremental parsing bug caused by faulty error recovery logic
  • fixed issues query for Typescript 4.6.0 (Beta).
  • fixed issues query for Typescript 4.6.1 (RC).
  • fixed issues query for Typescript 4.6.2 (Stable).
  • fixed issues query for Typescript 4.6.3 (Stable).
📄 View Raw Release Notes (Original Developer Log)
This release includes fixes for * [an incremental parsing bug caused by faulty error recovery logic](https://github.com/microsoft/TypeScript/issues/47895) * [improved results from the TypeScript API's `preProcessFile` function](https://github.com/microsoft/TypeScript/pull/47657) For the complete list of fixed issues, check out the * [fixed issues query for Typescript 4.6.0 (Beta)](https://github.com/microsoft/TypeScript/issues?q=milestone%3A%22TypeScript+4.6.0%22+). * [fixed issues query for Typescript 4.6.1 (RC)](https://github.com/microsoft/TypeScript/issues?q=milestone%3A%22TypeScript+4.6.1%22+). * [fixed issues query for Typescript 4.6.2 (Stable)](https://github.com/microsoft/TypeScript/issues?q=milestone%3A%22TypeScript+4.6.2%22+). * [fixed issues query for Typescript 4.6.3 (Stable)](https://github.com/microsoft/TypeScript/issues?q=milestone%3A%22TypeScript+4.6.3%22+). Downloads are available on: * [npm](https://www.npmjs.com/package/typescript)
← Older Version TypeScript v4.6.2