GNU GRUB 2, mostly just referred to as GRUB these days, is the most widely used boot loader for x86_64 Linux systems. It supports reading from a vast selection of filesystems, handles booting modern systems with UEFI or legacy systems with a BIOS, and even allows users to customize the "splash" image displayed when a system boots. Alas, all of those features come with a price; GRUB has had a parade of security vulnerabilities over the years. To mitigate some of those problems, Ubuntu core developer and Canonical employee Julian Andres Klode has proposed removing a number of features from GRUB in Ubuntu 26.10 to improve GRUB's security profile. His proposal has not been met with universal acclaim; many of the features Klode would like to remove have vocal proponents.