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Whoooo boy.
This is a pretty big update so yea.
Effectively a version bump to 1.19.4 with only one major code edit, this may or may not work on 1.19.3? But it does work under 1.19.4,
Seriously though, 1.19.3 is a rather difficult update for generation mods, a significant amount of under the hood changes had to be made to go from 1.19.2 to 1.19.3, so if you are playing a long term world, there might be a few world gen bugs present.
Backup worlds before updating
Initial release

This mod revamps existing biomes in a vanilla manner