“The first release of the development branch of the GIMP is now available for download at ftp://ftp.gimp.org/pub/gimp/v2.1/ – please note that this should not be installed in the same prefix as your GIMP 2.0 since there are some conflicts.
Highlights of this release are migration of menus to GtkUIManager, use of the new file chooser, and improved HIG compliance of almost all dialogs.
Other new features are the ability to drag & drop files and URIs to the image window, adding a new layer, and the ability to use shortcuts regardless of which GIMP window is active.
Link: OSDir
