Adobe has started to release a series of videos that demo some of the new features of Adobe Photoshop CS6 that is set to be released at some point in 2012. This post will continue to be updated as the videos are released.
You should have no issues being able to upgrade from Photoshop CS3, CS4 and CS5. HERE is Adobe’s official statement on upgrades.
Sneak Peek #1 Adobe Camera Raw, Appearance and Rich Cursor Support
Sneak Peek #2 Liquify and Background Save
Sneak Peek #3 Vector Improvements
Sneak Peek #4 Content Aware Improvements
Sneak Peek #5 Presets
Sneak Peek #6 Controlling Bokeh – New Iris Blur Feature