Adjustments panel, Masks panel, improved File Browser, match color command...
New in CS4 (v11.0.x): New Adjustments panel, auto-blending of images feature, Masks panel, content-aware scaling, improved Adobe Photoshop Lightroom workflow, improved raw image processing, enhanced "industry-leading" color correction, auto-alignment of layers, extended depth of field; Release Notes - Last Updated: 03.02.09 (v11.0.1)
Upgrade Meter: 5
New in CS3 (v10.0.x): New user interface, camera RAW enhancements, Auto Blend and Auto Align tools, improved black-and-white conversion control, Quick Select tool, improved print dialog and print preview function; Release Notes - Last Updated: 11.27.07 (v10.0.1)
Upgrade Meter: 5
New in CS (v8.0): Improved File Browser, match color command, shadow/highlight correction, histogram palette, integrated digital camera RAW file support, comprehensive 16-bit support, Layer Comps, Macromedia Flash file export, text on a path; Release Notes Upgrade Meter: 5
New in v6.0: Integrated ImageReady 3.0 client, Vector support, Layer Styles, new Image Slice tools, weighted optimization controls, dynamic layer-based slices, advanced PDF output options, expanded text features, Preset Manager, Liquify command; Notes Upgrade Meter: 5
New in v5.5: Integrated ImageReady 2.0 client, Save for Web optimization tool, support for Lossy GIF format, Background Eraser and Magic Eraser tools, support for Portable Document Format (PDF) 1.3, Art History tool; Release Notes Upgrade Meter: 2
New inv5.0: Editable text, layer effects, 3-D transformations, alignable layers, path and selection transformation, a history palette that allows for unlimited undos and redos, enhanced actions palette (automates program functions), improved color management (using ICC profiles), enhanced hue/saturation control; Release Notes Upgrade Meter: 5
Pros: Unrivaled graphics design tools, special effects & filters, intuitive and easy to use
Cons: Quite expensive at $649 (especially for individuals/small businesses)
