After almost three years since the release of GIMP 2.2, the GIMP developers have just announced the release of GIMP 2.4. The release notes speak of scalable bitmap brushes, redesigned rectangle/ellipse selection tools, redesigned crop tool, a new foreground selection tool, a new align tool, reorganized menu layouts, improved zoomed in/zoomed out image display quality, improved printing and color management support and a new perspective clone tool.

http://www.gimp.org/