Bun 1.4
UpdateUnverifiedAdded Sep 24, 2026
Bun 1.4 rewrites Bun in Rust, ships built-in headless browser automation (Bun.WebView), Bun.Image, Bun.markdown, JSON5, JSONL, Terminal and cron APIs, Node.js 26.3.0 compatibility with 1,517 newly passing tests, parallel test and run, Windows ARM64, and an opt-in global virtual store for up to 7× faster installs.
Topics: Performance
More Bun releases
Every Bun release| Date | Release | Type |
|---|---|---|
| Sep 4 | Bun v1.4.1unverified Update | Update |
| Sep 5 | Bun v1.4.2unverified Update | Update |
| Jul 8 | Rewriting Bun in Rustunverified Update | Update |
| May 13 | Bun v1.3.14unverified Update | Update |
| Apr 20 | Bun v1.3.13unverified Update | Update |
| Apr 9 | Bun v1.3.12unverified Update | Update |
| Mar 18 | Bun v1.3.11unverified Update | Update |
| Feb 26 | Bun v1.3.10unverified Update | Update |
Also shipped on Aug 20, 2026
Bun in August 2026
Sources: each vendor's own release notes, changelogs and GitHub releases, read daily to monthly by how often it posts. Logos via logo.dev; trademarks belong to their owners.