This version of ROCS has been built using OEToolkits 2018.Oct. The previous
version was built using OEToolkits 2016.Oct.
The engine behind ROCS, Shape TK, has gone through a major re-engineering
in the OpenEye Toolkits v2017.Oct release. With the introduction of
Shape TK 2.0, overlay optimization in ROCS is now approximately 10% faster
than in the previous release.