https://wccftech.com/xiaomi-beta-testers-oreo-mi-6/

A few days back, Xiaomi initiated the rollout of MIUI 9 Global ROM to select Redmi and Mi series smartphones. It may take some time for the update to reach every device, but it looks like Xiaomi has already started testing Android Oreo.

In the latest report from Gizmochina, Xiaomi has started recruiting testers for a closed beta of Android Oreo for the Mi 6 smartphone. The report also notes that the process is currently in progress and the first beta version of Oreo will be made available to the testers in the upcoming weeks. While Xiaomi is yet to make an official announcement regarding the program, but testers selected for the program have shared some pictures revealing that Xiaomi is looking for early adopters to try Oreo closed beta.