Hi !

We spend a lot of times in caves in minecraft but they didn't get any new or exiting features since a long time, that's why I think a cave update is due !

Some ideas :

- Caves biomes of diferent types of caves depending on the biome it's generated into, for example : Ice caves, bats infested caves, lava caves, etc

- Stalagmite and Stalagtite in caves, should be blocky, maybe like cobblestone walls

- More mushroms in thsoe caves?

- Mobs spawning only in caves?

There is a lot that could be done so that just some ideas, also the nether is a big caves, so it could be updated at the same time !