Biome/Before Beta 1.8

In Beta 1.8 and, biomes received a major overhaul, removing and changing many biomes.

Biome types
Before the Adventure Update and TU5, biomes were much smaller and less distinct.

Biome placement was controlled by temperature and humidity values (like 1.7+), allowing interface biomes and making it nearly impossible to generate desert near taiga or rain forest near tundra (except ice desert) while making transitions from biome to biome smoother. Tall grass was also much less present in pre-1.8 worlds (except in the "Plains" and "Ranforest" biomes).

There were 13 biome types: 10 in the Overworld, 1 in the Nether, and 2 unused ones that are in the code but aren't encountered in normal play.

Generated structures
История биомов и натуральных структур