ArcheAge servers are down from now until about 1:00 pm Pacific / 4:00 pm Eastern to bring the 5.0 "Relics of Hiram" update online. If all goes according to plan, servers will remain down for approximately four hours.
Relics of Hiram was originally to have launched on October 24th, but the sudden and surprising sale of Trion Worlds to Gamigo interrupted its deployment.
The 5.0 update brings several new locations to explore, gear to collect and enemies to fight. In addition, a new Ancestral level cap is added alongside more house customizations, achievements and much more.
The Western Hiram Mountains feature a variety of new monsters, of which the majority are Ancestral Level 7. These monsters drop Ancestor’s Coinpurses and Ancestral Crates, as well as Radiant Hiram Awakening Scrolls, used to awaken your T3 Hiram Guardian Equipment. Included in their drop tables are also Mysterious Hiram Infusions, which can be identified using up to 50 Labor and can contain Hiram Infusions of grade Rare (300 XP), Arcane (400 XP) or Heroic (700 XP).
You can read the full patch notes on the ArcheAge site.