If you would like to check the exact version of your MediaWiki CMS, you can do so through the methods mentioned below:
Method 1:
Go to ‘Special Pages’ >> Click on ‘Version’
Method 2:
You can ascertain the MediaWiki version through the source code of your website; it can be viewed in the following line:
<meta name=”generator” content=”MediaWiki 1.28.2″/>
Method 3:
Open this file – includes/DefaultSettings.php that is located in the installation folder. This file can be accessed through File Manager or through FTP. In this file you will see the version of your MediaWiki CMS mentioned in the line that begins with ‘$wgVersion:’
Related: How To Execute The MediaWiki Update Script Through A Browser?