According to the latest information shared by an online user, Xiaomi has pushed the MIUI 12.5 internal testing beta update with version V21.9.25 for Mi 11 Ultra users, which has been upgraded to Android 12.
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The changelog mentioned in the screenshot shows that this update is an Android cross-version upgrade. Additionally, this version also improves the stability of the system and optimizes the flow of the system.
This update is an Android cross-version upgrade. To reduce the risk of upgrading, it is recommended to back up personal data in advance. This update takes a long time to start and load, and performance and power consumption issues such as micro heat and microcard may occur within a short period of time after startup. Please wait patiently.
Some third-party applications are not optimized for their own version, which affects normal use. Please upgrade carefully.
Google officially released Android 12 at the I/O 2021 developer conference held in May this year. Subsequently, official information released by Xiaomi MIUI revealed that Xiaomi 11 Ultra, Xiaomi 11 Pro, Xiaomi 11, and Redmi K40 Pro are the first to support Android 12 beta 1.