Latest Bun News & Updates

See the latest news and media coverage for Bun. We track all announcements, press releases, and industry mentions in real time, all in one place.

Bun

JavaScript and TypeScript runtime and developer toolkit

bun.com

Headquarters: San Francisco, United States
Founded year: 2019
Company type: Private company
Number of employees: 10–18
Industry: Software

Last updated September 11

Latest news about Bun

In short: Bun was acquired by Anthropic, rewrote its runtime from Zig to Rust, and shipped major updates.

Company announcements

April 20 Bun

Bun releases v1.3.13

Introduces bun test --parallel, --isolate, --shard, --changed flags, streams tarballs with 17x less memory, optimizes source maps, upgrades JavaScriptCore.

April 9 Bun

Bun releases v1.3.12

Introduces Bun.WebView for headless browser automation, terminal Markdown rendering, in-process Bun.cron, async stack traces, and numerous performance improvements and bug fixes.

March 18 Bun

Bun releases v1.3.11

Introduces Bun.cron for cron jobs, Bun.sliceAnsi for string slicing, smaller Linux binary, and numerous bug fixes. Published March 18, 2026.

February 26 Bun

Bun releases v1.3.10

Introduces native REPL, browser-targeted compilation, TC39 ES decorators, Windows ARM64 support, barrel import optimization, and performance improvements.

Media coverage

September 11 MSN

The surprising acquisition: Anthropic purchases Bun for AI projects

Anthropic's recent acquisition of Bun, a JavaScript runtime, raises questions about the future of software engineering and AI tools. With Bun's rapid rise and unique...

August 15 WebProNews

ChainDrop Worm Exposes Cracks in npm Defenses as Self-Replicating Malware Poisons 444 Packages

The ChainDrop variant of the Shai-Hulud worm compromised 444 npm packages with 2 billion monthly downloads. It spreads via modified tarballs and dev-tool hooks, evading...

July 9 International Business Times

Claude Code Rewrote Bun From Zig to Rust in 11 Days, Proving the Code May Take Years

Anthropic's Claude Code helped rewrite Bun from Zig to Rust in 11 days, but developers say long-term maintainability will determine the project's success.

July 8 MSN

The surprising acquisition: Anthropic purchases Bun for AI projects

Anthropic's recent acquisition of Bun, a JavaScript runtime, raises questions about the future of software engineering and AI ...

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