On May 29 flying ORF-SAN, I am DL PM and checked my upgrade status (4 days before flight) today on Delta.com. It showed "available", there was a small box to the left of "available" which I checked for each flight and after I did that, it upgraded me and allowed me to select FC seats. I thought the upgrades were automatic, is this something new that you must do for the upgrade? I normally fly international so I am not used to being upgraded, so forgive me if this is something normal you must do now to get a domestic upgrade. Thanks.