Find the new features in the last version of the OpenRoads Designer CONNECT Edition in the readMe_OpenroadsDesigner_en.chm file in the default folder of product installation.
For instructions on how to download, install and start developing with the OpenRoads Designer CONNECT SDK, check this link out.
OpenRoads Designer SDK CONNECT Edition installation leverage you with several code samples along with a Developer Guide (OpenRoadsDesignerDeveloperGuide.pdf) explaining the example code, both, managed and unmanaged to help you to start your project. Find them in the default path of folders or redirected path, post product installation
For example the default path would be- C:\ProgramFiles\Bentley\OpenRoadsDesignerCONNECTSDK, after the installation.