The WikimediaCustomizations extension is a catch-all for Wikimedia-specific classes, hooks, messages, maintenance scripts etc; anything that's too small to be worth a dedicated extension.
For more information see its extension page.
The WikimediaCustomizations extension is a catch-all for Wikimedia-specific classes, hooks, messages, maintenance scripts etc; anything that's too small to be worth a dedicated extension.
For more information see its extension page.