# TypeScript v3.4.3 — Release & Upgrade Intelligence
- **Product:** TypeScript (https://typescriptlang.org)
- **Version:** v3.4.3
- **Released:** Apr 09, 2019
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/typescript/updates/v3.4.3/

## 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.

## Bug Fixes
- fixed issues query for Typescript v3.4 RC.
- fixed issues query for Typescript v3.4.1.

## Upgrade Command
```bash
npm install --save-dev --save-exact typescript@3.4.3
```