Sabayon Linux features a rolling release cycle, its own software repository and a package management system called Entropy.
Sabayon is available in both x86 and AMD64 distributions and there is support for ARMv7 in development for the Beagle Bone.
Official releases are simply DAILY versions which have received deeper testing. Sabayon also includes additional tools for automatic configuration of various system components such as Open GL.
Sabayon provides proprietary video drivers for both n Vidia and ATI hardware.
Switching your kernel using kernel-switcher is the easiest way, and actually recommended, as it also installs the right kernel modules/drivers.
One way is to search the installed packages for the old kernel version and redirect the output to a file which you can look into later to select the drivers you need.
In particular, Sabayon is based on Gentoo's testing branch.
Gentoo's testing branch is about on par with Debian's Sid (unstable branch) releases.
To show the list of kernels you can select, run: As you can see there are two kernel entries and we need to select the latest, which is number .
In the example above, the correct kernel is already selected (indicated by the *).  run: Now the kernel symlink is set to the new kernel and we can install the updated kernel drivers.