No, that is not true. Look at the instructions on the receipt (bar code page)
Did you take a class at your last renewal?
I have always taken a renewal class. My instructor told me that since i did my renewal online their computer already knows that I have had 4 renewals and that I took a class last time. Their computer will start processing my renewal even before it gets the bar code page. I sent it anyway. Still waiting on my response from the DPS though.