DigiNews

Summary

Bun 1.4 introduces substantial Node.js compatibility improvements, a Rust-based rewrite, and a suite of new built-ins (Bun.Image, Bun.WebView, Bun.markdown, Bun.cron, Bun.Terminal). It also delivers significant performance and memory efficiency gains, security hardening, and expanded runtime capabilities (HTTP/3 in Bun.serve, improved fetch, TLS improvements), making it highly relevant for DevOps workflows and SMB IT environments relying on modern JavaScript runtimes. The post emphasizes upgrade steps and the broader shift to a Rust-powered Bun with broader built-in capabilities.