Here's a code snippet to display last updated post date in any Genesis child theme.When ever you modify a post, it will show last updated date in the Genesis post info.
1.Go to dashboard
2.Select appearances then editor
3.Open functions.php file and add below code.
The following code should be added to your Genesis child theme's functions.php file.
//* show last updated date to the post info in genesis 2.0 HTML5 theme
add_filter( 'genesis_post_info', 'gt_post_info_filter' );
function gt_post_info_filter($post_info) {
if (get_the_modified_time() != get_the_time()) {
$post_info = $post_info . '<br/>Last updated on: ' . the_modified_date('F j, Y', '', '', false);
}
return $post_info;
}