Linker::link() and Linker::linkKnown() functions are deprecated as of MediaWiki 1.28, and the new LinkRenderer is preferred instead.
https://doc.wikimedia.org/mediawiki-core/master/php/classLinker.html
./SpellingDictionary/includes/SDItem.php: $item->link = Linker::link( $page->getPageTitle(), $page->getDescription() ); ./SpellingDictionary/includes/SDItem.php: $item->link = Linker::link( $page_title, $desc );