Debian GNU/Linux 12.15 has been released as the final point update for the Bookworm version, marking the transition to Long Term Support (LTS) managed by the community and Freexian. This update includes over 60 critical patches, addressing vulnerabilities in the Linux kernel and web services, as well as issues related to Secure Boot certificates. Users are encouraged to shift to the current stable release, Debian 13 "Trixie," for new installations, while LTS users will receive updates until June 30, 2028, followed by a paid Extended LTS option. The update also signifies significant changes and improvements during Bookworm's lifecycle, including support for various architectures and the introduction of new features such as a non-free-firmware archive category

Debian GNU Linux 12.15 Released: Final Bookworm Update Signals LTS Transition

Debian GNU/Linux 12.15 hit the archives today as Bookworm's final point release. The core Debian Security Team stops maintaining this version immediately, pushing the distribution straight into Long Term Support managed by the community and Freexian. This last major update ships over 60 critical patches, fixing expired Secure Boot certificates that could brick UEFI systems and closing vulnerabilities across the Linux kernel and common web services. New deployments should jump to Debian 13 Trixie now, while LTS users still have roughly two years of updates before paid extended support takes over.

Debian GNU Linux 12.15 Released: Final Bookworm Update Signals LTS Transition @ Linux Compatible