Ubuntu 20.04 (Focal Fossa) will transition to Extended Security Maintenance (ESM) on May 29, 2025.Users are encouraged to upgrade to Ubuntu 22.04 LTS or 24.04 LTS.Ubuntu 22.04 LTS and 24.04 LTS are actively supported with security updates and bug fixes.Canonical provides Extended Security Maintenance for Ubuntu 20.04 LTS through Ubuntu Pro.