Minecraft:Java Edition 1.18 Pre-release 1

1.18 Pre-release 1 (known as 1.18-pre1 in the launcher) is the first pre-release for Minecraft:Java Edition 1.18, released on November 11, 2021,<ref>Template:Mcnet</ref> which readds Minecraft:AMPLIFIED and Minecraft:large biomes, makes some tweaks, and fixes bugs.

Additions

General

Minecraft:World types

• Readded "Minecraft:AMPLIFIED" and "Minecraft:Large Biomes". Their implementation has been adapted accordingly to the terrain generation overhaul.
  • AMPLIFIED worlds now have terrain with the following characteristics:
    • Terrain rounded at Y=320, instead of Y=256.
    • Doubled offset above sea level.
    • Greatly increased 3D noise values, resulting in lower factor values inversely.
    • Doubled peak jaggedness.
  • Large biome worlds now have terrain with the following characteristics:
    • Most biomes, except mountain peaks and rivers, are four times larger.
    • Multinoise slowed down by factor 4 for temperature, vegetation, continentalness, and erosion, but not for ridge noise.

Changes

Blocks

Minecraft:Conduit

• Now has an assigned tool, the pickaxe.

World generation

Minecraft:Lava lakes

• Now only generate above Y=0.

Upgrading of old worlds

• Changed transition between old and new terrain to be less cliff-like.
  • Surface height, biomes, and caves will now blend much more smoothly.
• Deepslate and bedrock now properly generate in upgraded chunks.
• Cave carvers now properly generate in upgraded chunks.

Minecraft:Features

• Rewrote feature generation system.
• Now feature generations are configured with Minecraft:placed feature files.

General

Data generator

• --report option now creates full worldgen reference files instead of just biomes.

World creation screen

• Removed "Caves" and "Floating islands".