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.
