Android 15(ONE UI 7) Has Not Released Yet.The Beta Version Will Release In September Or October And Stable Version In Mid of Next Year.For Beta Updates You Will See A Banner In Samsung Member And You Will Have To Register To IT by giving Some info And You Will Start Receiving Beta Updates.
You will be get it before end of this year. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
