Documentation wrong

On http://welldonethings.com/tags/manager/v3 it says:

if prefill is not provided hiddenTagListId will be used as a fallback if provided.

but according to the code hiddenTagListId is deprecated and output is used to grab the prefilled tags instead:

 } else if (tagManagerOptions.output != null) {
if (jQuery(tagManagerOptions.output) && jQuery(tagManagerOptions.output).val())
var existing_tags = jQuery(tagManagerOptions.output)
prefill(jQuery(tagManagerOptions.output).val().split(baseDelimiter));
}