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Debian 12.15 released – final Bookworm point release brings security fixes and ends oldstable support

August 25, 2026

The Debian project announced Debian 12.15, the fifteenth and final point release of the oldstable Bookworm series. It bundles dozens of security patches, updates critical firmware tools like fwupd, and marks the end of official support for Debian 12, urging users to migrate to Debian 13 (Trixie).

Debian 12 (Bookworm) Enters Long Term Support: Timeline, Architecture Coverage, and Upgrade Guidance

August 25, 2026

Debian 12’s regular support ended on 12 July 2026. The Debian LTS team now provides security updates until 30 June 2028, adding ppc64el to the supported architectures. Learn what this means for users, how to identify unsupported packages, and why upgrading to Debian 13 (Trixie) is recommended.