TL;DR: TypeScript is Getting 10x Faster!

A Major Speed Boost for TypeScript at version 7

TypeScript is getting a massive speed upgrade with a new native compiler, replacing the JavaScript-based implementation. This change aims to make TypeScript 10x faster and significantly improve developer productivity.

How Fast Is It?

The new implementation drastically reduces compilation times. Here’s how it performs on real-world projects:

Codebase	Current tsc	Native tsc	Speedup
VS Code	77.8s	7.5s	10.4x
Playwright	11.1s	1.1s	10.1x
TypeORM	17.5s	1.3s	13.5x

This means faster builds, quicker type checking, and a more responsive coding experience.

Smoother Editor Performance

The biggest impact will be in editors like VS Code, where:

• Project load times drop from 9.6s to 1.2s.
• Memory usage is nearly 50% lower.
• Language features (autocomplete, go-to-definition) are much faster.
• TypeScript will adopt Language Server Protocol (LSP) for better compatibility.

What’s Next?

• TypeScript 6.x (JS-based) will continue development.
• The native version will become TypeScript 7.0.
• Developers can switch when it reaches full feature parity.

View the full article by Typescript: https://devblogs.microsoft.com/typescript/typescript-native-port/