Do I have to start over?

I completed the first unit of the Computer Science course and passed the exams. But now it is stating that I haven’t completed the unit, however, I notice that the format of the course has changed. Does this mean I have to start over?

I’m sorry for the trouble! For Unit 1, I think that what changed was primarily the format of the materials but not the content itself (i.e. there isn’t new material in Unit 1 that you would have missed previously). Any recorded quiz grades should still show up on your grade report, though, here: https://learn.saylor.org/course/user.php?mode=grade&id=6