Re:Bun 1.4
by AlexeyBelov on Saturday August 22, 2026 @02:37AM
(#49397196)
I don't think this release definively proved all of this wrong, no.
That's true, it was when they stealthed released it in a application that millions use and no one noticed.
Which one did it not prove wrong? The fully AI written version of Bun has released, fixed a ton of bugs that existed in the zig version, added a lot of new features and performance improvements and has been shipping with every single installation of claude code for months, the most widely used LLM-harness out there.
By every single measurable metric this is better software than the old hand-written version ever was.
There was a lot of sentiment around the lines of:
- Bun is done for, it's all slop now
- there's no way a fully AI-written codebase can work
- Jarred is an idiot for trusting AI to rewrite the whole thing
- they're never going to release this, there's going to be a billion of bugs
This release proved all of this wrong. It also serves as a great advertisement of how capable Anthropic models and harness are to enable this.