There are 2 methods to check the Ubuntu version you have installed. The first method is through the graphic settings window on your computer, and the second method is by running commands in the Terminal window. Check out the details of these 2 methods in the article below by Mytour.
How to check the installed version of Ubuntu
On GNOME Shell
If you're using GNOME Shell, start by clicking the icon located in the top right corner of the screen. Then, select the Settings icon as shown in the image below.
On the next window, scroll down the list and choose the
The About page will display the list of Ubuntu versions you are using.
On Unity
If you're running Unity, click the gear icon in the top right corner of the desktop screen, find and select the System Settings option.
Next, in the System Settings window, click the Details icon under the System section.
The Overview page will display the Ubuntu version you are currently using.
How to check the installed Ubuntu version using Terminal
There's another way to check your installed Ubuntu version, and that's by using the Terminal. This command works on alternative Ubuntu versions such as Ubuntu MATE, Xubuntu, Kubuntu, and Lubuntu. It also works if you're using a command-line utility environment without a graphics card, similar to on a Ubuntu server.
First, open the Terminal window from the Applications menu, then enter the following command and press Enter:
lsb_release -a
Unlike using the graphical interface, this command will display the Ubuntu version you have installed in the Description field (if available). For instance, if running Ubuntu 16.04.3 LTS, running the command will show Ubuntu 16.04.3 LTS. If using the graphical interface, you will only see Ubuntu 16.04 LTS.
In this article, Mytour has just guided you on how to check your Ubuntu version that you've installed. This way, you can verify which version you have, whether it's the latest one or not. To install the latest updates, use the Software Updater tool or use the apt command to download and install the latest version. In the case of Windows 10, find out how to check Windows 10 version here.
Alongside the instructions above, you can explore more articles and tips on the Ubuntu operating system from Mytour, such as how to quickly shut down Ubuntu, Ubuntu shortcut keys, and more.