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.

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1126votes
(Updated 23 April) Ready to talk biomes and dimensions? Here's how. Pinned
1vote
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1vote
Specific Biomes world generation
1vote
Endermen spawn rates in Nether
1vote
Constructing a Portal in the Nether connects to another Nether Portal
0votes
Steampunk City
3votes
A Dimension to the past
2votes
More strongest ender dragon boss
1vote
Better Badlands
0votes
Revamped Mesa/Badlands Biomes
2votes
Sistema solar en minecraft
1vote
The Overgrowth
2votes
New biomes and improvements to some
3votes
The meaning of The End (Lore)
2votes
🚀 Sky & space update! 🛰
2votes
The Luhur Update / The Heaven Update
2votes
Possibly a New Desert for 1.18 or Other Future Updates
2votes
The End of a New Beginning Update
4votes
Improved jungle temples
3votes
Nightmare dream ... or a memory? (new dimension)
2votes
citadin update and ornament update
1vote
New Dimension!
3votes
Mystic forest biome
2votes
Aldeas/aldeanos
1vote
create a world like end but the dragon is red with blue eyes
2votes
Frozen Wastes
6votes
An upgrade to river and lake biomes using the new 3D biome format.
3votes
ender lander
2votes
Timezones in minecraft
2votes
Super Rare Sub-Biomes should have Super Rare Items