When confronted with Photoshop CS6 (and later versions), in the interface you’ll see that the Adjustments panel is now fixed, and when clicking on an option the Properties panel appears.
All adjustment settings are localised in a single space, making activation far more rapid. There’s no having to quit out your panel to choose another adjustment – simply click from the ‘Add an adjustment’ icon presets and the Properties panel presents settings.
You may have also missed the omission of a Masks panel. It’s been canned and amalgamated with the Properties panel. Clicking the Properties Masks option, your selections are subject to editing with Density and Feather sliders, as well as Refinement options.