The GMF Runtime is an industry proven application framework for creating graphical editors using EMF and GEF.
The GMF Runtime provides many features that one would have to code by hand if using EMF and GMF directly.
Development is underway for the proposed GMF Runtime 1.11.0 release for Eclipse Oxygen, due June 2017.
June 22, 2016 - GMF Runtime 1.10.0 for Eclipse Neon has been released. Check the Downloads page.