Latest Bun version: 1.4.0
The current verified stable version of Bun is 1.4.0.
1.4.0Release date: 2026-08-20. Source verified: 2026-08-23. Source: Bun GitHub releases.
JavaScript runtime, package manager, bundler, and test runner.
Use this answer when checking whether your JavaScript runtime, package manager, bundler, or test runner install is current.
Open the official Bun downloadSource-backed version details
Bun GitHub releases
Source verified: 2026-08-23.
Release date: 2026-08-20.
Development Tools
Vendor-provided source
Repository release record
Recently checked — Checked 15 days ago; the catalog review window is 45 days.
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