Windows/Linux: Free image-editing tool GIMP has received a big update to version 2.8 that includes an overhaul to the interface and makes it a bit easier to use and navigate windows. It also comes packed with a bunch of bug fixes, a new layer groups option and new dock window management.
The big change is in the interface. With that comes a new single-window mode that consolidates all the floating tools into one window. You can dock and move them around as needed.
On top of the completely new interface, a bunch of smaller tweaks are added in as well, including a new way to handle groups of layers, a new method to export images and more. Hit up the list of changes for all the new features, or check out the link below to download the new GIMP 2.8 for Windows and Linux. The Mac port should be on its way shortly.