I’m really excited to see the technical changes, specifically the move towards a more data-driven system. This should make it a lot easier for servers to change stuff like biomes when a player is already playing, especially on larger networks. Currently you’d have to set the biomes on join, without a way to update them or make them “sub-server” specific.

The datapack changes are also very nice to see, hopefully this can help people write some more performant functions ^_