The Eclipse Graphical Editing Framework (GEF) provides Eclipse-integrated end-user tools in terms of a Graphviz authoring (DOT editor, DOT Graph view) and a word cloud rendering environment (Tag Cloud view), as well as framework components (Common, Geometry, FX, MVC, Graph, Layout, Zest, DOT, and Cloudio) to create rich graphical Java client applications, Eclipse-integrated or standalone. All relevant information can either be found on github.com or on projects.eclipse.org.
GEF is participating in the annual Eclipse Simultaneous Release. Having recently published the 4.1.0 (Neon.1) release, we have finalized the Neon development stream and are now focussing on a 5.0.0 (Oxygen) major release, in which all GEF4 components are transferred to the original project namespace, while all GEF-Legacy components are now put into 'pure maintenance' mode. See GEF@projects.eclipse.org for details.