So this is kind of interesting. After I installed beta 4 I noticed that I had a few apps that needed updating. On one of them I get the message "Update unavailable with This Apple ID... This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or canceled". It definitely wasn't refunded or canceled, but it likely was originally 'purchased' with my wife's Apple ID. (I say 'purchased' because it is a free app). The interesting thing is that I have set up family sharing and my wife, so theoretically I should have access to anything that she purchased anyway. This is something that was originally downloaded to my device with my wife's Apple ID long before family sharing existed, so I'm not sure if this means that we'll need to delete and re-install any apps so that it recognizes family sharing or if it's just a beta 4 bug.