Upadte 1.1.1 further updates/changes the lighting model of the game.
This update is more experimental in nature.
Ambient occlusion was altered.
Areas which are in shadow (but are more exposed to the sky light) recieve a blue tint while areas which are more enclosed recieve a more neutral dark/greyish color.
This should help with grounding the geometry more into the scenery.
Here is a comparison:
Before (update 1.1.0)
After (update 1.1.1)
You should notice that the shadows in the new update appear a bit darker and have a slight blue-ish tint to them. (You can also see the change on the blocks in the distance on the right side of the screen.)
Upon request this update also removed the Backspace-key function which could be used for deleting blocks in the map-editor. (Use the "Delete" key do delete entities instead.)