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Hacker News·28d ago·5 min read
Ubuntu 26.10 completes transition to Rust-based coreutils
TL;DR
Ubuntu 26.10 has successfully transitioned to Rust-based core utilities, enhancing security by replacing traditional GNU commands with memory-safe versions. This marks the completion of a significant shift initiated in 2025 to improve system reliability.
✦ Why It Matters
Consider migrating your projects to Rust for improved memory safety and security.
Key Takeaways
- Explore Rust-based alternatives for core utilities.
- Stay updated on Ubuntu's security improvements.
- Test compatibility of Rust utilities in your workflows.
- Monitor the upcoming beta release for new features.
Full Summary
Ubuntu 26.10 completes its transition to Rust-based core utilities, marking a significant shift in the operating system's foundational software. Previously, commands like cp, mv, and rm were held back due to security vulnerabilities known as TOCTOU (time-of-check to time-of-use) issues.
With these issues resolved, the latest release, dubbed 'Stonking Stingray', includes a full suite of Rust core utilities, such as ls, cat, chmod, and du. Canonical, the company behind Ubuntu, began this 'oxidisation' process in 2025, motivated by Rust's ability to catch memory bugs at compile time, unlike C compilers.
The migration has been supported by a security audit and funding for Rust software development. While the transition offers no functional changes for users, it significantly improves security.
The beta version is set to release soon, with a stable version expected in October 2026.