Best of Bun — January 2026

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   Article

   Bun·18w

   Bun v1.3.6

   Bun v1.3.6 introduces new APIs for tarball creation/extraction (Bun.Archive) and JSONC parsing, adds metafile and virtual files support to Bun.build, and delivers significant performance improvements: Response.json() is 3.5x faster, async/await 15% faster, Promise.race 30% faster, and Bun.hash.crc32 20x faster. The release includes SIMD-optimized Buffer.indexOf, HTTP/HTTPS proxy support for WebSocket, S3 Requester Pays support, --grep flag for bun test, fake timers compatibility with @testing-library/react, SQLite 3.51.2 update, and 45 bug fixes improving Node.js compatibility, bundler stability, and security.

   93

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2. 2
   Article

   InfoQ·20w

   Bun Introduces Built-in Database Clients and Zero-Config Frontend Development

   Bun 1.3 introduces zero-configuration frontend development with hot module replacement, a unified database API (Bun.SQL) supporting MySQL, PostgreSQL, and SQLite without external dependencies, and a built-in Redis client claiming 7.9x performance over ioredis. The release includes enhanced package management with dependency catalogs for monorepos, isolated workspace installs, and interactive dependency updates. Performance improvements include 10-30% reduced memory usage in frameworks like Next.js, 60% faster macOS builds, and 9% faster Express benchmarks. Breaking changes affect TypeScript types for Bun.serve() and SQL client usage patterns.

   89

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3. 3
   Article

   Bun·16w

   Bun v1.3.8

   Bun v1.3.8 introduces a built-in CommonMark-compliant Markdown parser written in Zig with three rendering modes: HTML output, custom callbacks for terminal/custom formatting, and React elements. The bundler now supports --metafile-md to generate LLM-friendly Markdown visualizations of module graphs for bundle analysis. This release fixes 8 issues including crashes in heap snapshots and node:vm, HTTP/2 stream handling for gRPC calls, and npm global installation on Windows.

   70

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