1.20 Swamp Update

The Swamp Update is a Minecraft Update released on December 4th 2020. It overhauls the Swamp Biome and adds a lot of new content and the announced Swamp features in Biome Chooser 2019. It includes 54 new blocks, items, and other entities, 5 new mobs, and a new Boss. It was the first update to use Mojang's new 4 Month Update System.