Ubuntu 17.10 also marks the end of the Ubuntu GNOME style, and it is also the first version to switch to the next generation Wayland display server instead of X.Org Server.
However, as a non-LTS version, Ubuntu 17.10 does not have an extended support period, and the life cycle is only about nine months. After July 19th, Canonical will no longer release security and software updates for Ubuntu 17.10 users.
If you are still using the Ubuntu 17.10 (Artful Aardvark) operating system on your personal computer or server, you should be ready to upgrade to the Ubuntu 18.04 LTS (Bionic Beaver) series as soon as possible.
Canonical has provided upgrade instructions to Ubuntu 17.10 users via the https://help.ubuntu.com/community/BionicUpgrades page.
Ubuntu 18.04 LTS supports security and software updates for up to five years until April 2023.