OpenELEC-4.0 is now the next stable release, which is a feature release and the successor of OpenELEC-3.2 and older.
Since OpenELEC 3.2 the underlying OS and the build system have been completely reworked. One aspect of the builds that isn’t visible to most users is the buildsystem; it is one of the most fundamental building blocks for OpenELEC. It provides us the flexibility to support many different build platforms, to be responsive in updating specific packages and to add new features easily.