Being out for a week on PC, the Survival Mode update is expected to arrive this Friday, May 6, to consoles. The Fallout 4 players had been beta testing the update since March. Survival Mode, or patch 1.5, brings a lot of updates, fixes, and adjustments that Bethesda decided to make based on the player feedback. You can find a wall of text that is a description of patch notes here.
Lastly, Bethesda has announced that the next DLC, Far Harbor, arrives on all platforms on May 19th.
