Debian -- News -- Security support for Bookworm handed over to the LTS team

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Latest News<br>/ News from 2026<br>News -- Security support for Bookworm handed over to the LTS team

Security support for Bookworm handed over to the LTS team

July 12th, 2026

On 12 July 2026, three years after the initial release, the regular<br>support for Debian 12, alias bookworm, has come to an end. The<br>Debian Long Term Support (LTS) Team<br>is taking over security support from the Security and Release Teams.

Information for users

Bookworm LTS will be supported until 30 June 2028.

Where possible, users are encouraged to upgrade their machines to Debian 13,<br>alias trixie, the current Debian stable release. The life<br>cycle of Debian releases encompasses three years of regular support plus two years<br>of Long Term Support. Debian 12 will thus receive Long Term Support until 30<br>June 2028, five years after the initial release.

Users that need to stick with Debian 12 can find relevant information about<br>Debian Long Term Support at<br>LTS/Using.<br>Important information and updates regarding Bookworm LTS specifically can be<br>found at<br>LTS/Bookworm.

Debian 12 LTS users are invited to subscribe to the<br>announcement mailing<br>list to receive notifications about security updates, or to follow the<br>latest advisories through the<br>LTS Security Information<br>webpage.

A few packages are not covered by the Bookworm LTS support. Non-supported<br>packages installed in users' machines can be identified by installing the<br>debian-security-support<br>package. If debian-security-support detects an unsupported package which is<br>critical to you, please get in touch with<br>debian-lts@lists.debian.org .

ppc64el supported as a Bookworm LTS architecture.

One of the differences between regular support and long term support is<br>the set of supported architectures. The Debian LTS team is pleased to announce<br>that 64-bit Little Endian PowerPC (ppc64el) will be supported, for the first<br>time, as an LTS architecture.<br>The supported architectures in Debian 12 LTS are thus amd64, i386, arm64, armhf<br>and ppc64el.

Bullseye LTS reaching end of support.

Debian 11, alias bullseye, was initially released on 14 August 2021,<br>and its two years of Long Term Support will end on 31 August 2026.<br>Users of Debian 11 LTS are strongly encouraged to upgrade to Debian 12, and<br>then to Debian 13.

Debian and its LTS Team would like to thank all contributing users, developers,<br>sponsors and other Debian teams who are making it possible to extend the life<br>of previous stable releases.

If you rely on Debian LTS, please consider<br>joining the team,<br>providing patches, testing or<br>funding the efforts.

About Debian

The Debian Project was founded in 1993 by Ian Murdock to be a truly<br>free community project. Since then the project has grown to be one of<br>the largest and most influential open source projects. Thousands of<br>volunteers from all over the world work together to create and<br>maintain Debian software. Available in 70 languages, and<br>supporting a huge range of computer types, Debian calls itself the<br>universal operating system.

Contact Information

For further information, please visit the Debian web pages at<br>https://www.debian.org/ or send mail to

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Last Modified: Sun, Jul 12 13:49:07 UTC 2026<br>&emsp;<br>Last Built: Sun, Jul 12 13:49:42 UTC 2026

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