RHEL maintains a KABI to support binary device drivers. Given how frequently the linux kernel changes internal APIs, this would be much harder or even impossib

RHEL maintains a KABI to support binary device drivers. Given how frequently the linux kernel changes internal APIs, this would be much harder or even impossible if they changed kernel versions regularly. Instead, they take features and bugfixes from upstream and merge them back into their kernel version, auditing them for changes that would not be binary compatible.