That's reportedly version 3.2.0 and 3.2.1 (although it might be fixed in 3.2.1).  The reason why it matters is that cgminer 3.2.1 has been altered to work better with the USB ASICS (making them hot swappable and supposedly reducing the HW error rate).  Getting the HW error rate as low as possible to improve miner efficiency and productivity will help improve profitability.