Ubuntu 26.10 completes transition to Rust-based coreutils

Ubuntu 26.10 completes the migration of core utilities to Rust, replacing previously held-back GNU versions of cp, mv, and rm with memory-safe uutils implementations. The release includes a full set of Rust-based tools such as ls, cat, chmod, and du, following a 2025 initiative to “oxidise” foundational software for improved security. The transition introduces no functional changes for users, maintaining drop-in compatibility with GNU utilities.