In principle, nothing changes in this release.
In practice, this release marks rejoining the Simultaneous Release after migration to life support. It accommodates the demise of the EMF Facet project. Usage of Antlr changes to the same 3.2.0 version used by many other projects.
The minor version leap from 1.2.0 to 1.5.0 alerts users to the naming changes from *emf.facet* to *modisco.facet* and *gmt.modisco* to *modisco*. A major version change is avoided since the plugins/packages thought to be used by third parties are unaffected.