This Epic defines requirements and approaches for further activities moving towards eZ Platform 2.x, focused on DX in four areas:

1. Quality Control (BDD, Specification, Documentation)
2. Performance by Design (REST API optimizations)
3. Modern Architecture (Symfony 3.x, Future-Proof UI)
4. Development Process Awesomeness (Extending, Pipeline, Tooling, SDKs)

Stories under this Epic will fall under one of the above four categories (QC, PbD, MA, DPA), and may spin off into Epics of their own as we iterate.