Since I announced completing CS253, I might as well note that I completed the Udacity Programming Languages class (CS262) as well. I had a lot of fun with this class. Wes Wiemer is a fantastic lecturer, keeping it interesting with extensive literary and historical references in examples, ranging from Jane Austen and Urdu poetry to The Dark City. I spent a significant amount of time just chasing down the references for fun.
I don’t remember exactly when I finished this course (I think in the summer), but apparently I applied for the certificate in October.