# Node.js 21.0.0 릴리즈

> Clean Markdown view of GeekNews topic #11410. Use the original source for factual precision when an external source URL is present.

## Metadata

- GeekNews HTML: [https://news.hada.io/topic?id=11410](https://news.hada.io/topic?id=11410)
- GeekNews Markdown: [https://news.hada.io/topic/11410.md](https://news.hada.io/topic/11410.md)
- Type: news
- Author: [xguru](https://news.hada.io/@xguru)
- Published: 2023-10-19T10:16:02+09:00
- Updated: 2023-10-19T10:16:02+09:00
- Original source: [github.com/nodejs](https://github.com/nodejs/node/releases/tag/v21.0.0)
- Points: 9
- Comments: 0

## Topic Body

- V8 JavaScript 엔진 11.8   
- Stable `fetch` 와 `WebStream`  
- 기본 모듈 시스템을 설정하는 플래그 `--experimental-default-type`  
- 내장 WebSocket 클라이언트   
- 업데이트된 테스트 러너 (glob 지원)  
- fs.writeFile 에 flush 옵션 추가

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