Class WP_Footer_Content{
    
    public function __construct(){
        add_action('admin_menu', array($this,'footer_text'));
    }
    
    public function footer_text(){
        
        add_filter('admin_footer_text', function(){
            echo 'REMOVES "THANK YOU MESSAGE"';
        });
        
        remove_filter( 'update_footer', 'core_update_footer' ); 
        add_filter('update_footer', function(){
            echo 'REMOVE WORDPRESS VERSION';
        });
        
    }
    
}