Sorry, of course I messed up - meant "library" where "engine" stood. Edited just now.
Thank you for your post. I guess I wouldn't mind the API changing since the prof clearly stated he isn't interested in the version we're using as long as it solves the problems he'll throw at us and the projects we'll make to pass the course. Having said that, do you think it'd be more rewarding to go with the newer versions?