ciaran-
I really wish I hadn't "upgraded" to this recommended version. But I won't go into all the issues here.
Please do. That's the only way we can fix things.
One question: The status of links (broken, existing) NO LONGER UPDATE on any Wiki posts. Does anyone know why this is?
You could try $wgCachePages=false; in LocalSettings.php. Does that help?
Are you logged in / logged out? Which browser are you using? Is your wiki public somewhere?
Regards,
Erik