What dosage and how many times a day ?
At low dosage, under .25, and less than 3 a day, I would not expect any major withdrawal.
I am being treated with xanax (.25 X 3 per day) I can easily skip days and feel no effects. I take my xanax only when needed, so some days I have no need, and do not take any. Other times, I will need the 3 a day for days on end, no problems.
I will add that I am not terribly sensitive to medications, which could change my opinion. I have found xanax very effective for my anxiety, when used only as needed.