OpenROAD 5.1 went Generally Available Apr 2011. The defining feature of the release was general-purpose system classes for XML support, to allow creation and parsing of arbitrary XML documents without the need to create additional user classes or to use external components (3GL Procedures or External Class Libraries). Providing an XML based export file format will that will be documented, human readable, produce clean differences between different revisions of a file, allow changes to be merged, will allow OpenROAD source components to be managed by many different Software Configuration Management (SCM) systems.