# Bun bun-v0.4.0 — Release & Upgrade Intelligence
- **Product:** Bun (https://bun.sh)
- **Version:** bun-v0.4.0
- **Released:** Dec 23, 2022
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/bun/updates/bun-v0.4.0/

## Executive Summary (TL;DR)
Bun bun-v0.4.0. Source highlight: curl https://bun.sh/install | bash

## New Features
- chore: add eslintcache
- Add filename completions on `bun` command to Zsh
- add `bun pm ls` for printing lockfiles
- add tests for `process.stdin`
- add tests for #1633

## Bug Fixes
- fix `__require` collision from linking
- fix path string
- fix(stream): Fix Readable.pipe()
- fix(stream): make Readable.read work w/o \_construct implemented
- Fix typo in bun.d.ts
- bug compatible with `stdin.on("readable")`