Bun v0.1.1

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

🔧 Bug Fixes 2

⚡ Executive Summary (TL;DR)

Bun bun-v0.1.1. Source highlight: Web Streams - `ReadableStream`, `WritableStream`, `TransformStream` and more. This was a massive project. There are still some reliability things to fix, but I'm very happy with the performance, and I think you will be too.

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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.

🔧 Bug Fixes & Patches (2)

Web Streams - `ReadableStream`, `WritableStream`, `TransformStream` and more. This was a massive project. There are still some reliability things to fix, but I'm very happy with the performance, and I think you will be too.
Dozens of small bug fixes to the HTTP server

📄 View Raw Release Notes (Original Developer Log)

## What's New * Web Streams - `ReadableStream`, `WritableStream`, `TransformStream` and more. This was a massive project. There are still some reliability things to fix, but I'm very happy with the performance, and I think you will be too. * [`WebSocket`](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) is now a global, powered by a custom WebSocket client * Dynamic `require()` * 50% faster TextEncoder * ~30% faster React rendering in production due to a JSX transpiler optimization * Streaming React SSR is now supported * Dozens of small bug fixes to the HTTP server * Discord interactions template by @evanwashere in https://github.com/Jarred-Sumner/bun/pull/2 * Group zsh completion options by type by @alexkuz in https://github.com/Jarred-Sumner/bun/pull/194 ## New Contributors * @mjavadhpour made their first contribution in https://github.com/Jarred-Sumner/bun/pull/179 * @eswr made their first contribution in https://github.com/Jarred-Sumner/bun/pull/201 **Full Changelog**: https://github.com/Jarred-Sumner/bun/compare/bun-v0.0.83...bun-v0.1.0

← Older Version Bun bun-v0.0.83 Newer Version → Bun bun-v0.1.2