OpenQuake Engine 2.0.1 is a bug fix release of the 2.0 series.
It fixes a rare bug happening when a tectonic region type is filtered away in classical and disaggregation calculators (thanks to Elisabeth who discovered the issue).
You can install/upgrade the engine by following the instructions given here:
You can download the OpenQuake engine manual from here:
Michele Simionato on behalf of the OpenQuake Team