What’s new in 0.3.149 (download):

Removed some features temporarily

Added Nether and Ender dimensions

Added zoom-in (mouse wheel)

Added slicer (ctrl + [shift] + mouse wheel)

Added more options

Made shading optional

Made cache database bigger (~10% of world size) to store information about underground structures

Made compatible with Minecraft snapshot 12w19a

Made wood blocks artifical if there are no leaves on them

Fixed thread library bugs

Fixed bugs related to unknown biomes and blocks

Zooming out will be available later.