Developer’s note:
Changes the Overworld height to the old Y range, 0-256.
This will basically crop off parts of your world if you don't pregenerate the world on an earlier version of the game.
Available Versions
Version
Minecraft
Platforms
1.1
1.18 - 1.21.1
datapack
OldYLevels
1.20 - 1.20.6
datapack
Ready to use OldYLevels?
Create your Minecraft server and install the OldYLevels datapack with one click.