The new point release for Ubuntu 18.04 will provide the Ubuntu 18.10 kernel and hardware stack. This is important for those of us that are AMD gaming fans because this new update will bring a lot of improvements. However, if you have installed 18.04 in April, you will have to opt-in to get this new hardware stack. To enable this new update you will need to open the terminal and type in this command ”
sudo apt-get install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04".