In version 1.9, we've greatly improved so many aspects of the game and even added a few things.

WEAPONS
The sniper rifle has finally been fixed and works like it's supposed to. Doing damage to enemies and properly dispatching critters as God intended. The Duck Bill gun has also been updated with a new sound to replace that repetitive quacking and has even been textured. The Wand has also been textured and even fires a ball of radiation. A new weapon has also been added. A stop sign to stop those critters right in there tracks.
LEVELS
Level one has been updated with new textures and props. Level Two has also received the same treatment with objects around the map to make the city feel more like a city. Level three has gotten the most care, with all new animal pens and brand new buildings.
UI
The Loading screens have also been updated with a new loading icon and and even new loading screens.

So much has been added with a lot more to come.