Tree Distribution
The forests are now significantly more diverse with regions of smaller trees in between dense jungle. The general shape of the different regions is more organic.

New Tree Type
There is a new tree type added. It is about 80 blocks tall. It doesn't typically appear in dense jungles, but rather in regions with smaller or no trees.

Performance
Each chunk now generates from 25% to 40% faster than pervious version on multicore servers.