Debian 13.6 (Trixie) and 12.15 (Bookworm) include security updates. The 2013 Secure Boot CA has expired, and fwupd helps users transition to the new certificates.
Debian 13.6 and 12.15 Released: Security Updates and Secure Boot CA Transition
Submitted 2 months ago by 
linuxnation@mbin.linuxnation.social to linux@mbin.linuxnation.social
https://linuxnation.social/blog/debian_13_6/