Bun 1.4

Bun 1.4 rewrites Bun in Rust, ships built-in headless browser automation (Bun.WebView), Bun.Image, Bun.markdown, JSON5, JSONL, Terminal and cron APIs, Node.js 26.3.0 compatibility with 1,517 newly passing tests, parallel test and run, Windows ARM64, and an opt-in global virtual store for up to 7× faster installs.

255 points by meetpateltech 63 days ago bun.com 178 comments

Summary

Bun 1.4 introduces a complete rewrite in Rust and adds several new features, including built-in headless browser automation and enhanced APIs for image handling and markdown. With improved compatibility and performance, it promises significantly faster installations and broader platform support.

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