Minified files no longer present in Development Bundle download

Per this switch statement:

switch ($compression) {
case 'none':
$file_path = "$file.js";
break;
case 'pack':
$file_path = "packed/$file.packed.js";
break;
case 'mini':
default:
$file_path = "minified/$file.min.js";
break;
}

it would seem that the minified and packed jQuery UI files are expected to be located at minified/ and packed/, respectively. However, the Development Bundle from the official jQuery UI site no longer contains these files - only one large minified file (which, incidentally, is not under the development-bundle directory, but rather located at js/jquery-ui-1.7.1.custom.min.js).

Am I missing something, or did the jQuery UI download format change?

Thanks! :)
-Rich