https://www.gamespot.com/articles/destiny-2-update-and-iron-banner-available-now-her/1100-6456438/

Bungie has concluded its server maintenance routine, and Destiny 2 servers are back online. The first Iron Banner event of Season 2, which began in early December with Curse of Osiris's release, is now live for a limited time, and a major new update has been released on PS4, Xbox One, and PC. Here's exactly what it does.