Hmm, you are right. The 11 days number came from the Bun blog, not the Anthropic blog. Anthropic has a history of making dishonest claims like this (for example their C compiler) so when I saw the news coverage I assumed this was just another one of those. My mistake.
replyEven then, can you point out where Jarred said this on the Bun blog? Because AFAICT, it seems pretty clear that he said that it took 11 days to get to all integration tests passing, but not to a full release candidate. In his blog post from a few weeks ago, he specifically calls outs:
reply>Bun v1.4 makes Bun faster, smaller, use less memory and gives the team incredibly powerful tools for systematically improving stability going forward: Rust's borrow checker, Miri (which runs for a growing chunk of code in CI), LeakSanitizer, and 24/7 coverage-guided fuzzing for parsers. There's still more to refactor, but things are off to a great start.
Perhaps you never perused beyond the HN headline?