When will Samsung Galaxy A54 5G get stable One UI 8.5 Update?

No S Secure App for Samsung Galaxy A54 5G ??

I want help as my phone gets automatically restart several times and also gets freeze while working.My phone is out of warranty and so can anyone suggest what to do. I've already tried to turn off auto-optimize feature.

Since last update of Security Patch which was of Aug 2017, there is not a single update...When will it come ??Also no Android Updates...Will J7 Prime get Oreo Update ??? and when ??