This article covers an overview about Ubuntu 18.04 LTS (Bionic Beaver). Also we covered in details the main features of this Ubuntu release.
The Ubuntu operating system's latest Long Term Support (LTS) release, Ubuntu 18.04 (Bionic Beaver), was released on April 26, 2018.
To upgrade an Ubuntu system of version 16.04 or later to Ubuntu 18.04:
1. Back Up Your System.
2. Update Currently Installed Packages
Begin by updating the package list:
$ sudo apt-get update
3. Next, upgrade installed packages to their latest available versions:
$ sudo apt-get upgrade
4. Now, use the dist-upgrade command with apt-get, which will perform any additional upgrades that involve changing dependencies, adding or removing new packages as necessary.
$ sudo apt-get dist-upgrade