@icon_of_computational_sin The kernel, Linux's ABI has been stable all this time (there have only been a few minor changes that can be reverted with the correct .config), but few programs talk to Linux - programs rather talk to GNU.

glibc wasn't designed to have a stable ABI - only its API is stable - the ABI is only forward compatible and the glibc developers don't hesitate to make changes that benefit free software, even if that causes proprietary malware to break.

Proprietary malware only soils the GNU system, which was created to be 100% free software and must stay that way - thus it's a good thing if proprietary malware doesn't run and everyone's freedom deserves more breaking changes that don't break free software.