What build of MicroStation is OpenRoads Designer built on?

How do you find what build of MicroStation OpenRoads Designer is built on?  If a bug gets fixed in the latest version of MicroStation how do i find out if that version of MicroStation is now the base program for OpenRoads Designer?

Found this article that explains the versions but not how the products are interrelated

https://communities.bentley.com/products/microstation/f/microstation-forum/92397/build-product-version-point-releases

Here are the latest version of the software that we use in our group and i want to know about

10.13.01.01         MicroStation CONNECT

10.08.00.88         OpenRoads Designer

10.06.00.15         Bentley Descartes

10.05.00.51         OpenCities Map

10.04.00.04         OpenUtilities CONNECT