Thread:Project:Support desk/How to make no follow link to pages where user may see the page code?/reply (17)

Normally you backup all folders, files and database of your installation, upload the files of the new MediaWiki version (override if already exist), run the update script and have fun :) If there is an error after this you can restore the whole installation with your backup :)

Personally, i test a new mediawiki version on a test system (a copy of my actual production) and look at the main and most of the secondary functions (read, edit, create, search and so on). If all works, i update the installation of the production system (after i create a new backup of all folders and database).