Are you expecting to get updates weekly? That's a bit unrealistic. Your phone will get 7 years of updates (or 7 major updates). 8.5 is in beta testing now and is not available to everyone. Only specific models of factory unlocked phones with specific carriers are eligible for the beta. It is not automatic. You have to find the banner when it's available, apply for it and be accepted to the test program.
I just updated my A53-5G to OneUI 8 with Android 16 yesterday. That's supposed to be the last Android update for this phone. I'm just wondering if I'll get OneUI 8.5 when it's released if it doesn't include Android 17.
One UI 8.5 will still be based on Android 16. The difference between this version and previous .1 versions is that it will be based on a quarterly update (QPR2) instead of just the initial release of Android 16.
Technically, most OneUI updates include support for the latest version of Android. However, being 8.5 might mean that you won't get another Android update until 9.0.
