Xiaomi has started distributing MIUI 12.5 internationally, beginning with the Mi 11. The flagship can now be upgraded to MIUI 12.5 on MIUI's European branch ahead of a wider rollout. Other devices should follow, including the Mi 10 series.
https://www.notebookcheck.net/Xiaomi-begins-distributing-MIUI-12-5-internationally.537760.0.html