CG Cookie keeps up to date with the latest versions software the crew uses: Blender, Unity, Photoshop to name a few.
New lessons are always created with the newest updates. Our lessons however, are designed to teach fundamental principals that are essential regardless of software version. This tends to give Cg Cookie's content a longer shelf life while teaching a fundamental skill that could be software agnostic.
Related Article: Learning 3D through various software versions.