Welcome to the Xenial Xerus edition of the Ubuntu Linux operating system, an open-source and free GNU/Linux distribution derived from the award-winning Debian GNU/Linux project.
The Ubuntu OS is currently still powered by the Unity 7 user interface, which provides users with a decent and modern graphical desktop environment.
By default, Unity Launcher continues to be placed on the left. Also, there’s still no option to move it to the right.
Best of all, Ubuntu 16.04 (Xenial Xerus) is an LTS (Long Term Support) release, which means that it will receive software updates and critical security patches for 5 years.