Ubuntu 26.04: Goodbye sudo, Hello Rust and Post-Quantum SSH
Canonical has released Ubuntu 26.04 LTS, introducing significant changes including a Rust-based sudo and post-quantum SSH key exchange. This version aims to enhance memory safety and security by replacing legacy components with more secure alternatives. The release is supported until April 2031 and reflects ongoing discussions within the Linux community about improving system security.
- ▪Ubuntu 26.04 LTS, codenamed Resolute Raccoon, was released on April 23, 2026.
- ▪The default sudo command is now a Rust binary, enhancing memory safety.
- ▪This release also features post-quantum SSH key exchange for improved security.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3906866) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Arthur Posted on May 18 • Originally published at pickles.news Ubuntu 26.04: Goodbye sudo, Hello Rust and Post-Quantum SSH #linux #ubuntu #rust #openssh On 23 April 2026, Canonical released Ubuntu 26.04 LTS, codenamed Resolute Raccoon. The release will be supported on the standard LTS track until April 2031, and on the Ubuntu Pro extended-maintenance track for several years beyond that.
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