Ubuntu 26.10, codenamed 'Stonking Stingray', has completed the distribution's transition to Rust-based core utilities. This release ships with a full set of Rust core utilities, migrating commands such as cp, mv, and rm that were previously retained in their GNU versions for Ubuntu 26.04 LTS. The delay was due to specific TOCTOU (time-of-check to time-of-use) security issues identified in the uutils Rust versions. With those issues now resolved upstream, Ubuntu 26.10 finalizes the job of fully integrating the memory-safe Rust alternatives. This move enhances the overall security posture of the operating system by utilizing Rust's memory safety guarantees for fundamental system commands.