# Changes for normal players
* Added cave biomes.
* River biomes no longer appear in oceans.
* Axolotls now spawn in underground pockets. Due to vanilla logic, they only spawn when clay is below them. Not all underground pockets will have clay in them.
* Molten rock in the core no longer spawns randomly. Instead, it's a smoother gradient.
* Fixed saplings failing to grow outside of big globe worlds.
* Fixed a lot of blocks not breaking quickly with the proper tool.
* Fixed a few blocks dropping the wrong items.
* Fixed bees not spawning in beehives in 1.20.5 and later.
# Changes for data pack makers
* Layers (the chunk generator kind, not the rock layer kind) have been split up into separate files. They are no longer in the world preset.
* This makes it easier to tweak them, but also means any data pack which already did this will need to update.
* Added a "noop"-typed layer, which does nothing, and does not have any configurable properties.
* This layer type is intended for when you want to remove a layer with a data pack.
* The `molten_rock` configured feature type has been removed.
* Added new mechanism for data packs to add mob spawns to the world without replacing biomes.
* Added new weighted random switch statement for scripts.
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }