But what if you want to update your themes and plugins, too? Fortunately, WordPress has made that just as easy.
All you need to do it edit your theme's functions.php file and add the following lines
add_filter( 'auto_update_plugin', '__return_true' ); add_filter( 'auto_update_theme', '__return_true' );
The first line keeps plugins updated and the second works on your themes.