https://wccftech.com/xiaomi-just-announced-the-miui-10-beta-global-rollout-schedule/

MIUI 10 is the latest version of Xiaomi’s Android fork. It is based on Android Oreo and was announced some time ago, alongside the Mi 8. The ROM currently has an ongoing beta program in the Chinese market w/ other markets to follow suit shortly. Today, the company announced the rollout schedule for MIUI 10 Beta program. Here’s what it looks like:

The following devices will receive MIUI 10 Global Public Beta ROM in early July 2018.