Yesterday I was informed by our Server Hosting Company that one of our Servers must go offline for 5 hours from 11 p.m. (Thursday December, 4) - 4 a.m. (Friday December, 5). They are renewing and reorganizing the Central Power Connection for their Server Center.
This means that for at least 5 hours the Extensions Site, the Developer Portal and JAdCenter are not available. Most of our users worldwide will hopefully not even notice the short outage.