It is normal after an incident of this type that there may be some aftershocks.
This is not an earthquake where we expect to experience the aftershocks
Of course! But, after so many hours of inactivity, delays in DNS propagation may occur. So all it takes is for a connection to use a DNS path that has not yet been updated, and this problem will occur.
Please note, I am not saying that this is what happened, just that it is a possibility.
No, I don't think that's what happened. Theymos didn't say anything about messing with DNS records, so there would be no DNS propagation delay. It was probably just some extra changes on the server that needed another restart. The last downtime didn't last longer than a few minutes, as far as I can see, just the time it takes for all services to kick back in after the server restart.
I'm feeling disappointed now. 
i think the plan for the upgrade is because of this unknown downtime accoutred a few times in the past.That's not the upgrade I had in mind.
