Thread:Project:Support desk/Upgrade issue/reply (2)

Please read the upgrade article carefully :) If you want to upgrade from 1.4 or older, you should upgrade to 1.5 first and then to the actual version:

https://www.mediawiki.org/wiki/Manual:Upgrading#How_do_I_upgrade_from_a_really_old_version.3F_In_one_step.2C_or_in_several_steps.3F