Last week, Xiaomi announced the roll-out of version 7.2 of its MIUI ROM, revealing that the update will hit devices in batches. The first batch that got the update included the Mi 5, Mi 4S, Mi Note Pro, Mi 4c, Mi Pad 1, Redmi Note 4G (Single SIM), and Redmi 1S.
The good news is that the update has started hitting the second batch of devices, too. These should include the Mi Note, Mi 3, Mi 4, Mi 4i, Mi 2/2S, Mi Pad 2, Redmi 3, Redmi Note 3, Redmi Note 2, Redmi Note 4G (Dual SIM), Redmi Note 3G, Redmi 2A, and Redmi 2.
If your device falls in the second batch, you'll soon received an OTA notification, if not already. Alternatively, those feeling impatient can also download the update package from official MIUI website (head to the MIUI link below).