Thread:Project:Support desk/MediaWiki 1.5 to 1.21 upgrade/reply (6)

> followed manual 1.21 install procedure

> current version of mediawiki (working) is from here (OpenVZ appliance) MediaWiki 1.15

You should not use MediaWiki 1.15; it is outdated, contains known security vulnerabilities and is no longer supported. MediaWiki 1.21 is better.

Make sure that you first install the old version and then update it with the new version.