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⇱ Rust Coreutils 0.9 Released With Additional Security Hardening, Zero-Copy I/O - Phoronix


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Rust Coreutils 0.9 Released With Additional Security Hardening, Zero-Copy I/O

Written by Michael Larabel in Free Software on 30 May 2026 at 01:08 PM EDT. 26 Comments
Rust Coreutils 0.9 was tagged today as the latest major update to this GNU Coreutils implementation in the Rust programming language. Rust Coreutils 0.9 is up to a 90.4% pass rate against the GNU test suite!

A big focus on Rust Coreutils 0.9 was on delivering greater safety and security following a third-party security audit, which was funded by Canonical as part of their Ubuntu efforts on using Rust Coreutils and hopes of 100% fully utilizing Rust Coreutils with the Ubuntu 26.10 release later in the year.

Rust Coreutils 0.9 fixes various security issues while hardening the codebase and reducing the amount of unsafe Rust code used. Also significant and making it into this release is zero-copy I/O performance work for the splice / tee / pipe commands. Rust Coreutils 0.9 also improves its WebAssembly, Cygwin, and Windows support.

👁 Rust Coreutils 0.9 pass rate


Rust Coreutils 0.8 was at a 94.7% pass rate compared to the GNU Test Suite but dropped to 90.4% in this new version due to the updated test suite introducing additional test coverage that isn't yet passing for Rust Coreutils.

More details on today's Rust Coreutils 0.9 release via GitHub.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.