Bun Has Been Converted to Rust. Now What?

Summary

PR #30412 merged into Bun's main branch, replacing the Zig implementation with a Rust rewrite generated by Claude Code agents in nine days. The new implementation passed 99.8% of the existing test suite, but does not guarantee safety or performance improvements.

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Bun Has Been Converted to Rust. Now What?

6/3/2026, 12:46:40 PM

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