The recommended and official update/upgrade process for MediaWiki software is documented in the MediaWiki Manual. Whilst I understand the need for thorough documentation and appreciate the official manual, it is very much overkill for many people that run more basic implementations of a Wiki.
Unfortunately MediaWiki doesn’t have a simple update/upgrade means like that of WordPress where a few clicks within the WordPress dashboard results in automatic updates being applied. A MediaWiki software update needs more attention and more technical knowledge.
To cut to the chase, and to try to make upgrading your Wiki software as simple as possible, here are the steps I take in updating MediaWiki.
- With a good FTP client (such as FileZilla) backup your MediaWiki files on your Webhost.
- From your Cpanel (Webhost dashboard) go to phpMyAdmin and backup/export your database.
- Download the latest version of MediaWiki.
- Extract the downloaded compressed file to a folder/directory on your computer (7-Zip is excellent free archive software).
- Using your FTP client, copy the new MediaWiki files to your Webhost directory (you’ll be asked if you want to overwrite file which you must agree to).
- Go to http://example.com/mw-config/ (where example.com is your domain name) and follow the instructions.
That’s all there is to it. Your MediaWiki is now at the latest version.