Samsung Galaxy A50 has stopped receiving Software update. It got two major update (Android 10 and Android 11). The new update policy, four years of Android update and 1 additional year of security update does not apply for Galaxy A50. So, Android 11 One UI 3.1 is the final version for A50 and will no longer receive Android & security updates. It's time for you to get a new phone if you want to enjoy Android 13 One UI 5 and above.