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Emphasis on the FOSS project. The v1.4 mentioned is not (yet?) open source, Claude Code is essentially using a proprietary fork, was GP's point.
by OJFord 3mo ago
Emphasis on the FOSS project. The v1.4 mentioned is not (yet?) open source, Claude Code is essentially using a proprietary fork, was GP's point.
- goo0000fy 3mo ago[flagged]
- OJFord 3mo agoFrom the article: > For me this outputs Bun v1.4.0 (macOS arm64). The most recent release of Bun on GitHub is currently v1.3.14 from May 12th, so that v1.4.0 version number in Claude supports them shipping a preview of a not-yet-released Bun version. Which is still true as I write this comment.
- kelnos 3mo agoA charitable interpretation is that the version of bun inside Claude Code corresponds to some recent state of their public git repository, so if you clone that, you more or less get the same thing. I don't see what it would buy Anthropic to have some sort of secret internal fork with special private code in it.
- goo0000fy 3mo agobun upgrade --canary
- simonw 3mo agoThe code is on GitHub in the "main" branch, it's only unreleased in that it hasn't been tagged with a version number yet.
- goo0000fy 3mo agoyeah the word "unreleased" makes it sound so mysterious i am a clankersceptic as much as the next guy and i hate "anthropic" for participating in the murder of innocent people (maven "smart" system, offers them as a provider to the pedo criminal unitedstatistan government) but this whole "unreleased" framing is just manufacturing drama / lack of knowledge
- OJFord 3mo agoIf it hasn't been tagged with a version yet, how do you know (or what makes you think) it's the same as this 'v1.4'?
- simonw 3mo agoI don't know for certain, but it seems likely that it is given that Jarred said "Claude Code v2.1.181 (released June 17th) and later use the Rust port of Bun". What motive could he have for secretly maintaining a private fork of Bun that's shipped with Claude Code while simultaneously working on the open source repairs every day?
- atonse 3mo agoYou can install it now we with bun upgrade —-canary it something along those lines.
- NuclearPM 3mo agoI think you’re missing a word or two.
- layer8 3mo agoBased on comments elsethread, I think what was meant is: You can install it now with “bun upgrade --canary”, or something along those lines. However, people also report that the canary version doesn’t identify itself as version 1.4.
- pylotlight 3mo agoIt does.
- OJFord 3mo agoIt's extremely obvious what they meant, even if it/or wasn't a common phone autocorrect typo.
- deleted 3mo ago[deleted]
- CrimsonRain 3mo agoAnd GP is full of shit as the main branch is the v1.4.0. it is not "released" yet as it is not finished. It is available as canary version.
- croes 3mo agoSo Anthropic ships with unfinished version of bun. Doesn’t sound like responsible software deployment
- deleted 3mo ago[deleted]
- deleted 3mo ago[deleted]
- CrimsonRain 3mo agoThey can ship with whatever they want as long as it works.
- croes 3mo agoGiven the permissions Claude Code gets on many systems they should be more professional. They are basically testing the rust port on user machines. Who come that since the rise of AI all principles of software development are thrown over board?
- CrimsonRain 3mo agoBun is just the js runtime tool. At worst, you'll get a crash. If you are worried about bun security while granting permissions to Claude code...your worries are placed in the wrong place.
- croes 3mo agohttps://www.sentinelone.com/vulnerability-database/cve-2026-24910/ https://www.sentinelone.com/vulnerability-database/cve-2026-...
- sorenbs 3mo agoIt's a canary releasing directly from main: https://github.com/oven-sh/bun https://github.com/oven-sh/bun We have run it in production for a month: https://www.prisma.io/blog/bun-rust-rewrite-prisma-compute https://www.prisma.io/blog/bun-rust-rewrite-prisma-compute