I’m not sure why you changed the option to update all stories to only allow updating one story at a time, but for me, it’s not a welcome change. I think the old update all system was better (minus the erroneous message about there being a new update every time you ran it). Would it be possible to change it back or at least give us that option?
Also, I think the biggest issue with the old system was that it didn’t indicate which stories had been updated, which the new system does. To avoid that, I think you should simply implement a recently updated section to the top of the library page that has all of the stories with unread updates.