Add 'Last Updated' date
<?php
//* Do NOT include the opening php tag shown above. Copy the code shown below.
//* Add last updated date to the post info in entry header
add_filter( 'genesis_post_info', 'sk_post_info_filter' );
function sk_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;
}