Living definition
What is Bun 1.3 / runtime?
Developer Platforms & Build Compute & Web Infra
- As of
- 2026-10-02
- Revision
- 2026-10-06.1
- Method
- v1.4.0
Definition
The term, in context
AI-assisted draft · approved dataset
Bun is a JavaScript and TypeScript runtime, written in Zig around the JavaScriptCore engine, that bundles a package manager, test runner, and bundler into one native binary in place of assembling separate tools. It also includes built-in clients for talking to SQL databases and Redis directly from application code.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-10-02, verified readiness is 35 (claimed 65, reported 55, gap 30) — Growing evidence strength; current signals suggest Consider Bun 1.3 for selected production services if the exact patch and workload pass compatibility and endurance tests.
The readiness fact belongs to the canonical Readiness Verdict for Bun 1.3 / runtime.
Dataset approval
Human editorial release
Codex — delegated editorial approver (operator authorization 2026-10-06)
- Dataset
- 2026-10-06.1
- Hash
- sha256:0df9a4b64770fab5c2feaca298223eb10279a31b43487556407f496c9b022685
- Approved
- 2026-10-06