Is it safe to update Os Loki, to the newest 4.8 kernel? I now have 4.4-generic kernel.
Now that the Ubuntu 16.04.2 was released, you can safely update to the 4.8 kernel version. It's safe and works without issues. You can use this command:
sudo apt-get install --install-recommends xserver-xorg-hwe-16.04
It is relatively safe, though problems can always manifest. I recommend using Ukuu to do the upgrade and follow the method listed here:
This allows you to easily roll back to 4.4 if you are experiencing issues.