Sep-15: Go revisit Project-1 again (and, if needed, hit reload on your browser). The project has been changed to be four parts (A/B/C/D). This is not an addition to the project, but rather a dividing of what had been part A into two parts (now A and B, displacing the last two parts to become C and D). With the addition of this part is an additional deadline and thus additional time overall.
Sep-12: Project-1 has been posted on the Assignments page. Notice that it has three parts (A/B/C), each with its own due date. Get started on part A right away, because it presents you with a significant chunk of new code to understand.