Hi, we are seeing this under 1.34:
/w/index.php?title=Main_Page&action=history Error from line 287 of /srv/mediawiki/w/includes/actions/HistoryAction.php: Call to undefined method OOUIHTMLForm::setWrapperAttributes() #0 /srv/mediawiki/w/includes/actions/FormlessAction.php(43): HistoryAction->onView() #1 /srv/mediawiki/w/includes/MediaWiki.php(511): FormlessAction->show() #2 /srv/mediawiki/w/includes/MediaWiki.php(302): MediaWiki->performAction(Article, Title) #3 /srv/mediawiki/w/includes/MediaWiki.php(900): MediaWiki->performRequest() #4 /srv/mediawiki/w/includes/MediaWiki.php(527): MediaWiki->main() #5 /srv/mediawiki/w/index.php(44): MediaWiki->run()
Running php7.3