Thread:Project:Support desk/Updatation of Mediawiki 1.12 to Mediawiki 1.20/reply

Hi!

All the information on Upgrading are here.

To be able to run MediaWiki 1.20, you will have to update PHP to version 5.3 or newer. Possibly you also have to upgrade Postgres, but I am not sure about that. Maybe the easiest way is to upgrade your operating system; newer versions of Red Hat should automatically bring newer versions of PHP and Postgres.

However, do not forget to make backups of your MediaWiki files and of your database before you start!