You can already install MIUI 12 from on your Xiaomi smartphone, if it is included in the list of supported devices. The software includes Russian, so the option of installing a new update seems tempting - but remember - you do this on your own responsibility.
MIUI 12 was officially introduced by Xiaomi a few days ago.
The list of Xiaomi smartphones on which you can install MIUI 12 is quite significant, since it contains as many as 28 items:
As you can see, in the list we find not only the latest models. For example, MIUI 12 is available for the more than three-year-old Xiaomi Mi 6.
A complete guide to installing MIUI 12 on a Xiaomi smartphone can be found on the website (in English). The Xiaomi Europe portal is not official