Thread:Project:Support desk/Permitted File Types Issue 1.17 Upgrade/reply (6)

A few things: array_diff requires that both arguments be arrays. The instructions you were following (which, um, I wrote) make the second argument a string.

In r79693 I made it so that $wgFileExtensions now overrides $wgFileBlacklist. $wgMimeTypeBlacklist will still prevent you from uploading zip files, though, so what you'll want there is