-If you enable this plugin, be sure to lock that down, by entering a
-[[special_PageSpec|ikiwiki/pagespec/attachment]] in the "Allowed
-Attachments" field of the wiki admin's preferences page.
-
-This plugin will use the [[cpan File::MimeInfo::Magic]] perl module, if
-available, for mimetype checking.
+If you enable this plugin, be sure to lock it down, via the
+`allowed_attachments` setup file option. This is a special
+[[enhanced_PageSpec|ikiwiki/pagespec/attachment]] using tests provided by
+the [[filecheck]] plugin. That plugin will be automatically enabled when
+this plugin is enabled.