Xiaomiui reports that the company has begun internal testing of Android 12 for Mix 4, Mi Pad 5, Poco X3 Pro and Redmi Note 8 2021. In addition, the closed beta version of Android 12 has been launched for Mi 11 / Pro / Ultra flagships as well as Redmi K40 Pro.
As for the list, it was updated on August 28th. Keep in mind that this is an unofficial listing – it is based on leaks. The updated list confirms that the Mi Note 10 and Mi Note 10 Lite models will upgrade to Android 12, but the owners of Redmi Note 9 Global and Redmi 10 × 4G should not expect an upgrade.