DimasAnjasmara actually I got the last update on September patch after that i didn’t recieve anything , have you checked your apps which has been running on background
Because i also disabled background data usage l, background activity on every apps except WhatsApp,google,and one more app which is related to my studies
I wish os 4 makes good impact on battery bcuz some phone 3 users and other os users who installed Android 16 has been telling the A16 skin is light which is really improves their battery life