# Bun bun-v0.2.0 — Release & Upgrade Intelligence
- **Product:** Bun (https://bun.sh)
- **Version:** bun-v0.2.0
- **Released:** Oct 13, 2022
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/bun/updates/bun-v0.2.0/

## Executive Summary (TL;DR)
Bun bun-v0.2.0. Source highlight: curl https://bun.sh/install | bash

## Breaking Changes & Deprecations
- Breaking: - `bun run` and `bun` CLI arguments parsing has been changed so that anything after `bun run <file-or-script>` or `bun <file>` is passed through verbatim. This fixes a number of bugs with CLI argument parsing in both bun as a runtime and when used as a package.json `"scripts"` runner.
- - `Bun.serve().hostname` should return the hostname instead of the origin. This is a breaking change because it affects how URLs may be printed if you were using this getter before. https://github.com/oven-sh/bun/commit/e15fb6b9b220510df049e782d4f2f6eb3150d069

## New Features
- `bun --hot` brings hot reloading &amp; zero-downtime restarts to Bun's JavaScript runtime
- `Bun.spawn` and `Bun.spawnSync` (process spawning API)
- `Request.body` - incoming HTTP request body streaming with `ReadableStream`
- Rewrote `setTimeout` and `setInterval` for better performance and reliability
- 2.7x+ lower memory usage for `Bun.serve` and anything using `Response` objects
- `"imports"` in package.json (`"#foo"` imports) works now https://github.com/oven-sh/bun/commit/21770eb0f31a43b3d6127ab957e271d029d6bc1b

## Improvements
- docs(thread_pool): comment readability improvements

## Bug Fixes
- _tons_ of bug fixes & reliability improvements to `Bun.serve` (HTTP server) and `fetch()` (HTTP client)
- `bun run` and `bun` CLI arguments parsing has been changed so that anything after `bun run <file-or-script>` or `bun <file>` is passed through verbatim. This fixes a number of bugs with CLI argument parsing in both bun as a runtime and when used as a package.json `"scripts"` runner.
- Fix how console.log handle circular
- Fix nested modules bin executable issue
- Fix install error when node_modules already in npm package
- Fix fetch response redirected