Today, we released oemof.solph v0.6.4 (GitHub, Zenodo, PyPI, RTD). This new version updates the documentation to prefer solph.Results over solph.processing.results(model). Also, the former is automatically returned by model.solve(). This way it is now impossible to accidentally look for results of a model that has not been solved. You can have a look a commit that impressively shows the improvement: 898b457f@GitHub.
But there is also a notable new feature: There is now an API to easily set up SOC-dependent charging power. Before, we had an example showing how to formulate custom Pyomo constraints to do the same thing. Please have a look at the SOC dependent charging example for reference. (As the feature just slipped in, the example is not part of the documentation, yet. Also, we highly appreciate feedback for improved generic argument names.)