This guide doesn’t cover all changes in 0.4. See also the full list of changes in Version 0.4.0.
Although Wand 0.3 introduced some basic facilities to draw Lines or Texts, these were incomplete.
Since Wand 0.4 wand.drawing it became almost complete. For more detail example, see the drawing guide:
Eric McConville did whole of the work alone (#194), huge thanks for his effort!