Thread:Extension talk:BreadCrumbs/Call to undefined method OutputPage::addModuleStyles()

I tried to install the extension on MediaWiki 1.16.5 and got the following error Fatal error: Call to undefined method OutputPage::addModuleStyles in /data/www/www_memsource_com/wiki/extensions/BreadCrumbs/BreadCrumbsFunctions.php on line 107

Does the extension require a newer version of MediaWiki (I would like to avoid upgrading now)?