Manual:$wgUseCategoryMagic

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Category: $wgUseCategoryMagic
Should the category pseudo-namespace be used?
Introduced in version:1.1.0
Removed in version:1.6.0
Allowed values:(boolean)
Default value:true (1.3-1.5)
false (1.1-1.2)

Details

This option is no longer in use; categories are enabled unconditionally.

Should the category pseudo-namespace be used? (Set to true if categories are used, false if category is just another article.) Should [[Category:Dog]] on a page associate it with the category Dog? (a link to that category page will be added to the article, clicking it reveals a list of all articles in the category.)