.1,
            updater => {
                type => 'category',
                label => 'Classifying category records...',
                condition => sub {
                    !$_[0]->column('class')
                },
                code => sub {
                    $_[0]->class('category');
                },
                sql =>
                    "update mt_category set category_class = 'category'
                        where category_class is null",
            },
        },
        'core_typify_entry_records' => {
            version_limit => 4.