yes. my Xiaomi Mi4C gets an update every week. sometimes some minor regressions, but they're always fixed the next week.
i certainly prefer that to the typical android software update cycle from most manufacturers/carriers
i got my Mi4C in April 2016 and it has received several OTA android version update and monthly android security patches. there are certainly many insignificant UI changes, but there have been android updates occasionally in the last four months.
similar to what others have mentioned, the place where i purchased it added google apps in a way that prevented regular updates. once i re-flashed and reinstalled google apps, i've gotten updates every week
or a new wall paper in the stock
or a new option on swipe right
They have sold millions of phones , ask them, on how many phones have they given
--- android version update.