The Warhammer Online team has announced that v1.4.5 has been deployed. The Warhammer Herald has a highlights list that goes into detail about the most significant changes.
Relics: Players can search tunnels under fortresses to find arcane relics.
Fortresses have, because of the new relics, become "strategic footholds for realms to invade and defend.
Grovod Cavern has returned to the game. Players duke it out underground.
Scenario Shake Up: Some scenarios are headed into the vault for now while others have had a tier change and yet others are returning to the game with some minor changes. All of the alterations to the scenarios were made in response to player feedback.