The Rust Coreutils project, which aims to provide a full, modern Rust implementation of the GNU Core Utilities — the essential command-line tools found on every Linux and Unix-like operating system — has announced the release of version 0.4.
Notably, the project’s growing maturity has already led to real-world adoption in some Linux distros, such as Ubuntu 25.10 “Questing Quokka” and AerynOS, both of which now utilize Rust Coreutils for select system utilities.
Version 0.4 brings this release a step closer to achieving full GNU Coreutils compatibility. According to devs, the latest test results show 544 passing tests, up from 532 in the previous 0.3 release — an increase that raises total compatibility to 85.8%, while failures dropped from 68 to 56.
Last I checked Ubuntu was not an unstable mess of a rolling release, but a distro people rely on for stability.
Their normal non-LTS versions are still considered production ready and acting that rash has only solidified my negative opinion of them more…
If you’re expecting stability for any Ubuntu release, that went out the window when Canonical started forcing Snaps.
But non-LTS Ubuntu releases have always been a testing ground for less-than-stable changes. uutils is just one of them, and the only way to make them stable is to see how they’re being used in the wild.