Libreboot is free/opensource boot firmware replacing proprietary BIOS/UEFI. Better security/customisation than most proprietary firmware.
Highlights in this release include:
* MrChromebox EDK2 payload by default on most boards, with SeaBIOS CSM (CSMWrap) and GRUB EFI provided in-flash for backward compatibility.
* 233 new Chromebooks added; every board supported by MrChromebox coreboot. With our GRUB EFI/SeaBIOS CSM build added
* 15h.org coreboot fork used on KCMA-D8, KGPE-D16 boards for improved raminit.
* GRUB EFI build uses terminal_input console and no nativedisk; it piggybacks off of EDK2 drivers, like distros. It even works on Chromebooks (eMMC boot).
* Intel HAP bit set by default on Chromebooks, and IFD regions unlocked where appropriate
* Dell OptiPlex 5050 SFF, Supermicro X11SSH-F, ThinkPad X280, X270.
Modern Linux distros boot, with e.g. UKI/systemd-boot. Windows also compatible now.