Linux From Scratch 12.0 incorporates GCC 13.2, Glibc 2.38, GNU Binutils 2.41, and other updates. The Linux 6.4.12 upstream kernel is the default kernel version used for the LFS 12.0 guide.

Linux From Scratch 12.0 also now uses pkgconf rather than pkg-config, a few Python updates, and more. Beyond Linux From Scratch includes around 1,000 packages beyond the former LFS 11.2 book. The LXQt desktop environment is among the updates in BLFS while future versions of BLFS will drop LXDE.