Please read the pinned post on creating new biomes and dimensions. Remember that individual items, mobs, and structures should still go in their own categories - this is not a category for entire updates.

Vote for an existing idea or New post

14votes
More forest biomes
14votes
New Dimension: Mytothia
14votes
New biome: poinciana islands
14votes
Water world portal
14votes
Strider nest (Sub biome in the nether lava seas 20w16A, or later)
14votes
Biome: Spring Falls
14votes
Creeper "Homelands"
14votes
Obsidian Canyon
14votes
Glacier Biome
14votes
Badlands (Canyon rivers)
14votes
(Dimension) The Above
14votes
Snowy Giant Tree Taiga
14votes
Diamond dimension
14votes
The End Islands, but better [biomes]
14votes
Biome Overhaul Part 1 : Desert
14votes
Dungeon Running (Bosses, not just chest and spawner)
14votes
Mushroom Island Needs a Total Revamp
14votes
Dead Sea biome
14votes
heat and moisture map
14votes
(Bedrock) Decrease amount of visible caves
14votes
{Please Add} Nendther Dimension
13votes
Tropical islands biome
13votes
13votes
BIOMES UPDATE
13votes
Giant glowing mushrooms
13votes
Chunk borders
13votes
A petrified forest biome
13votes
"Color" block state for leaves
13votes
Lava Ocean Upgrade
13votes
Nether biome: Nether Herbarium