There are several new features that are set to arrive in Minecraft with the Caves & Cliffs Update Part 2. Players have been eagerly waiting for the update since the announcement of the new biomes and the Warden at Minecon 2020.
To make sure that a Minecraft update is stable, Mojang releases snapshots of the update so that interested players can test out new features and report any issues.
By installing beta versions, Bedrock Edition players can also try out upcoming features and report glitches and bugs.
Experimental snapshots released for Minecraft 1.18 update

What are experimental snapshots?
Experimental snapshots are game versions that come out before a normal snapshot, and Mojang has released three of them for Minecraft version 1.18.
Players cannot install them directly from the Minecraft launcher. Interested players can learn how to install the latest experimental snapshot here.
List of all experimental snapshots released for Minecraft 1.18 so far
Experimental Snapshot 1
- Increased world height and depth to Y level 384 and -64, respectively.
- Added five new mountain sub biomes: lofty peaks, snowcapped peaks, grove, meadow, and snowy slopes.
- Added new cave biomes: Lush caves and Dripstone caves.
- Added new cave generations: Cheese, Spaghetti, and noodles.
- Added new ore distribution with larger veins.
- Natural variation in terrain shape and elevation, independently from biomes.
- Monsters now spawn in complete darkness only.
- Mountain, caves, and cave entrances have been integrated.
Experimental Snapshot 2