Is the 2D gameplay tutorial by Graveck
 Interactive outdated?

I’m referring to this tutorial.

It seems the last revision was 19th february 2008 and it’s built on Unity 2. I’m worried that by following the tutorial I’ll learn bad practices and techniques that are outdated in Unity 4.

Is the tutorial outdated? If so, any other similar tutorials written specifically for Unity 4?

http://forum.unity3d.com/threads/173640-Released-2D-Platform-Controller