Debian 11 "Bullseye" will reach the end of its Long Term Support (LTS) on 31 August 2026, after which security updates will no longer be provided. Users are encouraged to migrate to Debian 12 "Bookworm" for support until June 2028, and eventually to Debian 13 "Trixie," which offers long-term coverage until 2035. For those needing extended support beyond the LTS period, Freexian provides a commercial Extended LTS service until June 2031 for sponsored packages. The upgrade process is recommended to be carried out in two steps, ensuring systems are backed up and tested to avoid vulnerabilities as the support for Bullseye ends

Debian 11 Bullseye Reaches EOL: August 2026 Deadline and Migration Options

Debian 11 "Bullseye" will officially reach the end of its Long Term Support period on 31 August 2026, marking the deadline after which the project stops issuing security patches. Since its initial release on 14 August 2021, Bullseye has spent nearly five years delivering stable performance with Linux kernel 5.10 and GNOME 40. Debian recommends migrating to Debian 12 "Bookworm" for immediate support until June 2028, or Debian 13 "Trixie," which offers long-term coverage until 2035. If you require extended protection beyond the official LTS window, Freexian provides a commercial Extended LTS service running until June 2031 for sponsored packages only.

Debian 11 Bullseye Reaches EOL: August 2026 Deadline and Migration Options @ Linux Compatible