# Create-React-App 4.0 릴리즈

> Clean Markdown view of GeekNews topic #3131. Use the original source for factual precision when an external source URL is present.

## Metadata

- GeekNews HTML: [https://news.hada.io/topic?id=3131](https://news.hada.io/topic?id=3131)
- GeekNews Markdown: [https://news.hada.io/topic/3131.md](https://news.hada.io/topic/3131.md)
- Type: news
- Author: [xguru](https://news.hada.io/@xguru)
- Published: 2020-11-02T11:23:53+09:00
- Updated: 2020-11-02T11:23:53+09:00
- Original source: [github.com](https://github.com/facebook/create-react-app/blob/master/CHANGELOG.md)
- Points: 4
- Comments: 0

## Topic Body

- Fast Refresh : 핫 리로딩용 react-hot-loader 를 대체하는 react-refresh 지원

- React 17 지원 (New JSX transform)

- TypeScript 4 지원

- ESLint 7

- Jest 26

- PWS/workbox 향상

- Web Vitals 지원

## Comments



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