They just desided to give monthly update for A50, because A50 is best selling phone for samsung..
so wait for it, they will surely send updates from this months..
don't blem directly because they are working on many factors.. samsung is sill no 1 company these days also..
they are experinced and they know there customers also..
if you have any problem, send feedback along with your log files so that can improve and solve fix as soon as possible..