Ubuntu announced its 25.10 (Questing Quokka) release almost 9 months ago, on 9 October 2025 and its support period is now nearing its end. Ubuntu 25.10 will reach end of life on 9 July 2026.
At that time, Ubuntu Security Notices will no longer include information or updated packages for Ubuntu 25.10. The supported upgrade path from Ubuntu 25.10 is to Ubuntu 26.04. For Desktop upgrade instructions, go to: https://documentation.ubuntu.com/desktop/en/latest/how-to/upgrade-ubuntu-desktop/ For Server upgrade instructions, go to: https://ubuntu.com/server/docs/how-to/software/upgrade-your-release/ Ubuntu 26.04 continues to be actively supported with security updates and select high-impact bug fixes. Announcements of security updates for Ubuntu releases are sent to the ubuntu-security-announce mailing list: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce Since its launch in October 2004, Ubuntu has become one of the most highly regarded Linux distributions with millions of users in homes, schools, businesses and governments around the world. Ubuntu is open source software, costs nothing to download, and users are free to customise or alter their software in order to meet their needs. On behalf of the Ubuntu Release Team, Utkarsh Gupta
