In addition, there will be some improvement to how the traces are drawn. For example, when you currently graph y=tan(x) and zoom out far enough, you will not see y go to + and - infinity when x=pi/2. Instead the trace will just stop at a random y value and the start again at some -y value. This will be fixed and now y=tan(x) will always be drawn off the top and bottom of the screen when x=pi/2.
I am also working to add the ability to graph parametric equations and polar coordinates to the paid version.