Quote from ProfessorRook
I started playing this one, and noticed a couple of potential problems.
1 - the mushroom and jungle biomes are chopped up - they were more or less rounded 12x12 squares, but they are shortened in one direction.
2 - the taiga biome in 1.7 is not cold. The biome needs to be changed to snowy taiga, or we won't get any snow/ice in that biome, which means no snow golems.
1 I haven't encountered.
2 If you build high enough you can get snow on top of blocks. The Taiga is there for wolf spawns.