Hello Bradley. Courses like the modular game assets don't get updated, usually courses that do are the ones such as the Fundamentals. New courses come around that touch on the same topics, so that's one way courses get a revamp. Though the old courses still linger around because there is timeless knowledge in them. When you're a beginner and need to follow exactly what's on the screen is a bit harder to follow old courses, but once you're comfortable with Blender, you'll be able to extract the goodies from old courses easier.