The Division’s live servers – which are in charge of the main game – had a very brief period of maintenance today. It began at 12:30 AM PDT and should be back up as of this time of writing seeing as it lasts only one hour. No major changes were made of course.
However, the Public Test Server or PTS on PC is a different matter. These servers underwent maintenance at 12:30 AM and should still be offline. The overall maintenance period is four hours with a special State of the Game scheduled for the last hour. Expect more information on said broadcast shortly.
The PTS is currently being used to test update 1.4, a significant patch for The Division which will overhaul enemy health and damage, adjust loot drops, introduce World Tiers (similar to Diablo 3’s Torment difficulties) and so on to ensure a better play experience overall. The update is currently set to go live in October.