As we buy samsung phone we expect reliability time to time android and ui update, but we aren't getting update on one ui 3.0 same mobile samsung m31 got stable update for one ui 3.0 similar phones getting update in March month. Samsung added wifi band switch option in one ui 3.0 only one phone in m series can connect to old wifi adapter pc's others are not able to use wifi in their pc's
I think it is partiality for budget or midrange phone users.
All those dates are tentative, all eligible phones will get update before that tentative date. Don't be so impatient and obsessed about updates. Do you know that some other companies like Asus never provide timely updates for example Asus Zenfone Max Pro M1, since last one year they are giving beta updates, still no sign of stable update and they also have denied Android 10 update for one ROG phone.
That's rog phone is flagship gaming phone and te need to maintain the performance of that phone. Asus zenfone max pro m1 has stock android its is not eligible for android 10 any other their case is totally different.
