Xiaomi’s latest software update is now available for Global Stable Build. You may receive the update over-the-air (OTA) using the Updater app.
If you have updated to beta/developer version, you may actually download the ROM and update it manually and you can find the step guide HERE.
As mentioned yesterday, there are only 6 devices that ready for the update that’s including Mi Note, Mi 4, Mi 3, Redmi 2 / Prime, Redmi Note 4G & Mi Pad. Redmi Note 3G and Mi 4i will get the update very soon.
You may find what’s new in MIUI 7.
Source: Xiaomi Malaysia