Bun v0.5.6

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 6

⚡ Executive Summary (TL;DR)

Bun bun-v0.5.6. Source highlight: **Read Bun v0.5.6's release notes on Bun's blog**

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 types for node:console and node:perf_hooks

🔧 Bug Fixes & Patches (6)

Fix/Update Typescript types
Fix URL of wasi-js
fix(uWS:capi) uws_req_set_yield typo and uws_res_override_write_offset
Fix gaps in types
[WIP] fix corner cases with aliases dependencies
[install] assorted fixes & improvements

📄 View Raw Release Notes (Original Developer Log)

**[Read Bun v0.5.6's release notes on Bun's blog](https://bun.sh/blog/bun-v0.5.6)** 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 # or you can use npm # npm install -g bun ``` To upgrade: ```bash bun upgrade ``` <a href="https://bun.sh/blog/bun-v0.5.6"> <img height="390" src="https://user-images.githubusercontent.com/709451/217699143-6ef0f26a-f8c4-4bad-9aea-d9a8c887b375.png" /> </a> ## What's Changed * Fix/Update Typescript types by @gaurishhs in https://github.com/oven-sh/bun/pull/1972 * Implement os.cpus() for Linux by @jwhear in https://github.com/oven-sh/bun/pull/1977 * Bump querystring-es3 by @gaurishhs in https://github.com/oven-sh/bun/pull/1988 * Fix URL of wasi-js by @TerrorJack in https://github.com/oven-sh/bun/pull/1997 * Add types for node:console and node:perf_hooks by @colinhacks in https://github.com/oven-sh/bun/pull/1982 * fix(uWS:capi) uws_req_set_yield typo and uws_res_override_write_offset by @cirospaciari in https://github.com/oven-sh/bun/pull/1996 * Expose Dirent and Stats by @michalwarda in https://github.com/oven-sh/bun/pull/1998 * Fix gaps in types by @colinhacks in https://github.com/oven-sh/bun/pull/2003 * [WIP] fix corner cases with aliases dependencies by @alexlamsl in https://github.com/oven-sh/bun/pull/2000 * [install] assorted fixes & improvements by @alexlamsl in https://github.com/oven-sh/bun/pull/2011 * Fix minor version bug for README.md by @RobViren in https://github.com/oven-sh/bun/pull/2013 * utf16 to utf8 conversion validation by @dylan-conway in https://github.com/oven-sh/bun/pull/2001 * [install] pick `latest` tagged version by default by @alexlamsl in https://github.com/oven-sh/bun/pull/2016 ## New Contributors * @jwhear made their first contribution in https://github.com/oven-sh/bun/pull/1977 * @TerrorJack made their first contribution in https://github.com/oven-sh/bun/pull/1997 * @michalwarda made their first contribution in https://github.com/oven-sh/bun/pull/1998 * @RobViren made their first contribution in https://github.com/oven-sh/bun/pull/2013 **Full Changelog**: https://github.com/oven-sh/bun/compare/bun-v0.5.5...bun-v0.5.6

← Older Version Bun bun-v0.5.5 Newer Version → Bun bun-v0.5.7