Changing roles ?

It must be possible to change the code ?

In the previous version of WordPress I changed the code in menu.php in the wp-admin folder but the menu.php has changed

OLD MENU FILE
// Menu item name
// The minimum level the user needs to access the item: between 0 and 10
// The URL of the item’s file
$menu[0] = array(__(‘Dashboard’), 0, ‘index.php’);
$menu[5] = array(__(‘Write’), 6, ‘post.php’);

NEW MENU FILE
$menu[0] = array(__(‘Dashboard’), ‘read’, ‘index.php’);
$menu[5] = array(__(‘Write’), ‘edit_posts’, ‘post.php’);