NovoAtlas 1.4.0 for Minecraft 1.21.9-10

• Fixed a bug where caves would be flooded in all areas of the map and surface decorations would generate on the floor of caves.
• Added fluid height maps, specified with the (optional) field fluid_height_map in the map info.

Fluid height maps

This version implements height maps for fluids. This allows for greater flexibility with lakes and rivers, allowing them to run above (or below) sea level. If there is a difference in fluid height between two blocks without land to separate them, the game will generate some wall-like structures similar to Aquifers to smooth out the transition.

If no fluid height map is provided, then the world's regular sea level will be used.

Abandoning previous versions

Due to breaking changes to the behaviour of Minecraft, this version of NovoAtlas will no longer support Minecraft versions 1.21.2-8. While this mod could have theorectically run on all versions since 1.21.2, this behaviour change to world generation is quite significant and resulted in major issues with this mod, resulting in the aforementioned bug that was fixed with this version. At this time, I do not plan to backport this update to those previous versions.