User blog comment:MisterWoodhouse/Updates to Discussions and the plan for Forums/@comment-43535274-20200806201859

"Special:Forum is built with custom modifications to MediaWiki, the software which runs our wiki platform. These modifications made it extremely difficult for us to update MediaWiki software and take advantage of all the changes made to it by its developers, the Wikimedia Foundation. Important changes, like security updates, needed to be reverse engineered to apply to Fandom’s heavily-customized installation."

guys.