Did that happen during 1st to 2nd gear? That happens to me too even after they did a software update. But it will go away after the car has warmed up.
See if this fits your description.
Bulletin No: TSB-37-13-84
Date of Bulletin: 04/09/2013
AUDI: WOULD HAVE HARSH 1-2 UPSHIFTS WHEN ACCELERATING OR HARSH DOWNSHIFTS WHEN BRAKING, TO ADDRESS BOTH CONCERNS, NEW SOFTWARE CALIBRATION FOR TRANSMISSION IS AVAILABLE. MODELS 2013 A4, A5, A5 CABRIOLET, ALLROAD, Q5, A6/A7, A8, A8L.