EMF Diff/Merge is a diff/merge tool for models. Its main purpose is to help build higher-level tools that need to merge models based on consistency rules. GUI components are also provided. Typical usages include model refactoring, iterative model transformations, bridges between models or modeling tools, collaborative modeling environments, or versioning systems.
This is the Luna release of EMF Diff/Merge. It provides better flexibility and customization facilities in order to cover a wider range of usages and integration scenarios.