Still 100% on upgrades to F this year, but the processing of upgrades really leaves me scratching my head. On my flight a couple days ago, upgrades were processed at T-80 even though only 1 seat was occupied and there were only a couple people eligible at the DM/PM window. On my next flight, 7 seats were available at the window. I checked at T-119 and the app still showed us in C+ and I looked that the upgrade/standby list to see 0 seats available. Looked at the seat map and we actually were in F and about an hour later the app screen updated to show our new seats. It was really strange to see them fill every F seat at the DM/PM window.