Home / DEVTOOLS / TypeScript / v3.4.3
TypeScript v3.4.3stable Released Apr 09, 2019
Impact Score: 5/10

TypeScript 3.4.3

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
🔧 Bug Fixes 2
⚡ Executive Summary (TL;DR)

TypeScript v3.4.3. Source highlight: This release forces TypeScript to clear its automatic type acquisition (ATA) cache based on patch versions. This means all consumers of TSServer can update to newer patch releases of TypeScript to clear the ATA cache if ATA has downloaded stale `.d.ts` files that can hang the language service.

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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.

🔧 Bug Fixes & Patches (2)

  • fixed issues query for Typescript v3.4 RC.
  • fixed issues query for Typescript v3.4.1.
📄 View Raw Release Notes (Original Developer Log)
This release forces TypeScript to clear its automatic type acquisition (ATA) cache based on patch versions. This means all consumers of TSServer can update to newer patch releases of TypeScript to clear the ATA cache if ATA has downloaded stale `.d.ts` files that can hang the language service. For the complete list of fixed issues, check out the * [fixed issues query for Typescript v3.4 RC](https://github.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+3.4.0%22+is%3Aclosed+). * [fixed issues query for Typescript v3.4.1](https://github.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+3.4.1%22+is%3Aclosed+). * [relevant changes in 3.4.2](https://github.com/Microsoft/TypeScript/pull/30731) * [relevant changes in 3.4.3](https://github.com/Microsoft/TypeScript/pull/30814) Downloads are available on: * [npm](https://www.npmjs.com/package/typescript) * [Visual Studio 2017/2019](https://marketplace.visualstudio.com/items?itemName=TypeScriptTeam.typescript-343-vs2017) ([Select new version in project options](https://github.com/Microsoft/TypeScript/wiki/Updating-TypeScript-in-Visual-Studio-2017)) * [NuGet package](https://www.nuget.org/packages/Microsoft.TypeScript.MSBuild)
← Older Version TypeScript v3.4.2