I'm not familiar with mediawiki but there is a file named update.php provided by the package.
(focal-amd64)root@impulse:/home/bdmurray# dpkg -L mediawiki | grep -i update.php /usr/share/mediawiki/extensions-core/Gadgets/includes/content/GadgetDefinitionDeletionUpdate.php /usr/share/mediawiki/extensions-core/Gadgets/includes/content/GadgetDefinitionSecondaryDataUpdate.php /usr/share/mediawiki/extensions-core/LocalisationUpdate/LocalisationUpdate.php /usr/share/mediawiki/extensions-core/LocalisationUpdate/includes/LocalisationUpdate.php /usr/share/mediawiki/extensions-core/LocalisationUpdate/update.php /usr/share/mediawiki/includes/deferred/AtomicSectionUpdate.php /usr/share/mediawiki/includes/deferred/AutoCommitUpdate.php /usr/share/mediawiki/includes/deferred/CdnCacheUpdate.php /usr/share/mediawiki/includes/deferred/DataUpdate.php /usr/share/mediawiki/includes/deferred/DeferrableUpdate.php /usr/share/mediawiki/includes/deferred/EnqueueableDataUpdate.php /usr/share/mediawiki/includes/deferred/HTMLCacheUpdate.php /usr/share/mediawiki/includes/deferred/LinksDeletionUpdate.php /usr/share/mediawiki/includes/deferred/LinksUpdate.php /usr/share/mediawiki/includes/deferred/MWCallableUpdate.php /usr/share/mediawiki/includes/deferred/MergeableUpdate.php /usr/share/mediawiki/includes/deferred/SearchUpdate.php /usr/share/mediawiki/includes/deferred/SiteStatsUpdate.php /usr/share/mediawiki/includes/deferred/SqlDataUpdate.php /usr/share/mediawiki/includes/deferred/TransactionRoundDefiningUpdate.php /usr/share/mediawiki/includes/deferred/WANCacheReapUpdate.php /usr/share/mediawiki/includes/utils/BatchRowUpdate.php /usr/share/mediawiki/maintenance/update.php ** Package changed: ubuntu-release-upgrader (Ubuntu) => mediawiki (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890197 Title: mediawiki schema issue after do-release-upgrade -d from 18.04 to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mediawiki/+bug/1890197/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs