ohh it's true didnt think of it that way before. any hw tnx mate 

yeah, think the same may be after 18th of feb

for m21 it was expected to be on june bt came on this month. and russia have already got the update by now for a51

i think they will. i saw it on Google that they have promised to give software updates for 3 years to all flagships starting from s10. and they are planning to give the midrange devices the same facilities as well.