Bun v0.5.1

Source available — automated, not human-reviewed

Component: bun · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 1 🔧 Bug Fixes 5

⚡ Executive Summary (TL;DR)

Bun bun-v0.5.1. Source highlight: This release is a follow up to Bun v0.5

Visit Bun Official Site ↗ Official Release Source ↗ All Bun Releases 📡 Bun RSS

Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

✨ New Features & Capabilities (1)

add `fs.rmdir` & friends

🔧 Bug Fixes & Patches (5)

Fix/simplify `bun-types` release
fix memory reference issues
fix stale references upon `Lockfile` tree cloning
fix(fetch:HTTP_PROXY) fix support for HTTP_PROXY/HTTPS_PROXY and NO_PROXY in fetch instances
Bugfixes to install

📄 View Raw Release Notes (Original Developer Log)

This release is a follow up to [Bun v0.5](https://github.com/oven-sh/bun/releases/tag/bun-v0.5.0) To install: ```bash curl https://bun.sh/install | bash ``` To upgrade: ```bash bun upgrade ``` **[Read Bun v0.5.1's release notes on Bun's blog](https://bun.sh/blog/bun-v0.5.1)** <a href="https://bun.sh/blog/bun-v0.5.1"> <img width="356" alt="image" src="https://user-images.githubusercontent.com/709451/213629472-51e98684-8f62-4b2e-8f39-076a92feb410.png"> </a> ## What's Changed * Fix/simplify `bun-types` release by @colinhacks in https://github.com/oven-sh/bun/pull/1836 * add `fs.rmdir` & friends by @alexlamsl in https://github.com/oven-sh/bun/pull/1838 * support npm dependency aliasing by @alexlamsl in https://github.com/oven-sh/bun/pull/1837 * fix memory reference issues by @alexlamsl in https://github.com/oven-sh/bun/pull/1841 * fix stale references upon `Lockfile` tree cloning by @alexlamsl in https://github.com/oven-sh/bun/pull/1845 * parse dependency specifier correctly by @alexlamsl in https://github.com/oven-sh/bun/pull/1840 * fix(fetch:HTTP_PROXY) fix support for HTTP_PROXY/HTTPS_PROXY and NO_PROXY in fetch instances by @cirospaciari in https://github.com/oven-sh/bun/pull/1844 * Create new example http-file-extended.ts by @gornostay25 in https://github.com/oven-sh/bun/pull/1827 * repopulate `alias_map` correctly by @alexlamsl in https://github.com/oven-sh/bun/pull/1847 * Bugfixes to install by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/1848 * use `String.from()` by @alexlamsl in https://github.com/oven-sh/bun/pull/1850 * place `super` before generated code by @dylan-conway in https://github.com/oven-sh/bun/pull/1856 ## New Contributors * @gornostay25 made their first contribution in https://github.com/oven-sh/bun/pull/1827 **Full Changelog**: https://github.com/oven-sh/bun/compare/bun-v0.5.0...bun-v0.5.1

← Older Version Bun bun-v0.5.0 Newer Version → Bun bun-v0.5.2