Bun 1.4 Rust rewrite is three months late and the community is losing trust

Bun 1.4 Rust rewrite is not looking good

Bun has gone three months without a stable release for the first time since 2022. Founder Jarred Sumner has been promising v1.4 since June, but dates keep slipping and community replies now openly mock the repeated 'tomorrow' promises. The rewrite moves the codebase from Zig to Rust. In the past month, 15.8k commits came from robobun, 1.6k from autofix-ci[bot], and only 790 from Jarred; he himself noted most PRs are now Claude prompting Claude. Zig creator Andrew Kelley called the original Bun code 'hacks on top of hacks' and said Jarred was writing slop before LLMs. The author argues the rewrite looks more like an Anthropic ad than a genuine memory-safety fix, pointing to the number of unsafe blocks in the new Rust code. The project now has over 5,000 open PRs, far exceeding GitHub's recommended 1,000 limit.

Why it matters: Bun's Rust rewrite has left it without a stable release for 3 months — the longest gap since 2022. Founder repeatedly missed ship dates, community is openly mocking, and 15.8k commits came from bots, raising real questions about AI-assisted maintenance on a critical tool. Scor...