There is also a control that says "Old site" (right next to the "Help" control). Depending on the layout chosen, these controls are either on the lower left or upper right portions of the screen.
This said, V2 will be going away, so staying in V3 is a good idea. I find myself using V3 about 95% of the time.
Hi, i'm new to chess.com, but my first few days here were the v.2. (i believe it was v.2) style. As soon as i adapted to the style, it changed, is there anyway to return to the old site style?