Canonical has officially announced the release of Ubuntu 18.04, codenamed Bionic Beaver. This is a LTS (Long-Term Support) release that will be supported for 5 years, until April 2023.
Ubuntu 18.04 is the first LTS release to use Gnome Shell instead of Unity by default, so if you’re coming from Ubuntu 16.04 LTS, you’ll find a lot of changes.
This article presents the most important changes in Ubuntu 18.04 LTS (Bionic Beaver) since the previous version, 17.10 (Artful Aardvark), as well as since the previous LTS release, Ubuntu 16.04 LTS (Xenial Xerus).