Came across this recently looking at the Mi Pad 3:
Of course, Xiaomi is not the only company guilty of making a handful of devices each year and then abandoning them soon after, but to call their released and marketed products as "experiments" is a disappointment.https://xiaomi.eu/community/threads/is-the-mi-pad-3-is-still-being-updated.41551/
We have no more free time to take care of tablets and debug them.. currently we spend more than 11 hours (nonstop) on building 35 devices every week... and more phones will come soon... tablets doesn't get new functions or android base updates at all... lets call them "Experiments" from Xiaomi side
https://www.androidheadlines.com/2017/11/xiaomi-plans-release-mi-pad-4-tablet-exec-confirms.html
The Xiaomi Mi Pad 3, has been removed from the company’s official website, and is no longer available for purchase... this tablet was announced back in April, which means that it is only 7 months old at this point
Also/Related:
Xiaomi said to eye 2018 IPO at US$50 bln minimum valuation