Debian End of Life – Lansweeper

⚡ TL;DR | Go Straight to the Debian End of Life Audit

Debian version 11 “Bullseye” (LTS) will be going end-of-life on the 31st of August. Once end of life, this version will no longer receive any security updates nor support from the Debian project. Debian is a free, open source operating system built on the Linux kernel and is widely used in enterprise environments. Make sure to update all installations in your network to minimize security risks.

What Is Debian?

Debian is a free, open-source operating system built on the Linux kernel and maintained by the Debian Project, a global volunteer community of developers. It’s known for its stability, extensive software repositories, and long support cycles, making it a popular choice for servers, desktops, cloud deployments, and enterprise environments.

Debian uses the APT package management system to install, update, and remove software, and it supports a wide range of hardware architectures. It also serves as the foundation for many other Linux distributions, including Ubuntu, so its packages and release cycle have a significant influence on the broader Linux ecosystem.

Debian Lifecycle

Each Debian stable release follows a five-year lifecycle: three years of full support from the Debian Security Team, followed by two years of Long Term Support (LTS) handled by a separate group of volunteers and companies. A release is considered End of life after the 3 years of full support. Debian publishes a new stable release roughly every two years, so at any given time one version is current while the previous one moves into its LTS phase.

A release is considered End of life after the 3 years of full support. But since support is still available through the 2 years of LTS, our report treats the end of LTS as the EOL date. Once LTS ends, the release stops receiving official security updates. A commercial Extended Long Term Support (ELTS) offering from Freexian can extend coverage further, but it is not an official Debian project and covers only a limited set of packages.

Debian 11 “Bullseye” (LTS) End of Life

Debian version 11 “Bullseye” (LTS) will be going end of life on the 31st of August, 2026. This version will no longer receive any security updates or support from the Debian project. Make sure to update your installations to the current stable release – that is version 13 “Trixie” – in order to stay supported and keep receiving updates. Aside from being supported, version 13 also includes new updates and features, including but not limited to:

• Official support for riscv64
• Hardening against ROP and COP/JOP attacks on arm64
• HTTP Boot Support
• Improved manual pages translations
• 64-bit time_t ABI transition

Find Outdated Debian Installations

Our team has created a new report that will help you find all instances of Debian in your network as well as the version they are on and how long they have left until they will be going end of life. This allows you to prepare and update your installations before support ends. In Lansweeper Sites you can find this information in the OS Lifecycle space.