Xiaomi has begun rolling out its latest OS to the Mi 10T Lite on MIUI's global channel. MIUI 12.5 Enhanced Edition arrives as V12.5.3.0.RJSMIXM and should reach all handsets within the next week or so.
https://www.notebookcheck.net/Xiaomi-Mi-10T-Lite-starts-receiving-MIUI-12-5-Enhanced-Edition-globally.574714.0.html
Hmmm welll my phone just purcased is not updating to ANdroid 11 as promised, further it is buggy and notifications do not come thru! customer service is very poor at helping with this issue and suggest sending back to repair centre for this update!