Bun Blog company blog

Bun v1.3.9

by Jarred Sumner bun.com published 2026-02-08

Fixes 23 issues (addressing 13 👍). Run multiple scripts in --parallel or --sequential. bun:test mock & spyOn get Symbol.dispose support. ESM bytecode compilation. Faster Bun.markdown. Faster RegExp, String.prototype.trim, String.prototype.startsWith.

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Software EngineeringInfrastructure & DevOps2026

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