New Anthem Update Includes Legendary Missions, Elysian Caches

BioWare released Update 1.0.4 for Anthem today, adding Legendary Missions, Elysian Caches, loot changes and more.
The full patch notes, which can be found here, detail Legendary Missions, which allow players to replay critical path missions at a much higher difficulty. One mission will be available per day with no limit on the number of times it can be completed.
Players can access Elysian Caches using Elysian keys, which are earned by completing daily challenges. The caches appear at the end of