Object Search
You can now search for objects in the object placement menu. Please note that this feature checks for 1) object names and 2) categories they are in. Example: You can type "chair" to find all objects that have "chair" in their name, or you can type "food" to get all objects in the food category.
Wall Placement
The wall placement tool also works a bit differently now. It no longer automatically sets you to flat grid and place on grid features, but places a room on the terrain. Also it automatically creates the full room and with shift/ctrl you can activate creating corner rooms. There are plenty of other changes planned for this feature in the very near future, but this is a good first step to make the tool easier to use.