Its 8.1 oreo and Samsung experience 9.5..we thought some changes might be seen there but..it was a fake update. 1- No face lock 2- Security patch still 01 August 2018 3- No icon change 4- No control over LED indicator 5- Internet slow after update 6- Battery draining fast 7- No game optimiser At last Samsung make us fool...they were doing all this to show off..and they think like that they compete with MI like this..they were giving normal updates in the name of Oreo..bad experience with Samsung..they only focus on high end phones...S series and A series...people hope they will get something great in this update..But Samsung doesn't care about mid range phones..its last major update for this device..it should be good one..