OpenCAN 0.4 is another major release with changes to the API and Testbench. There was one addition to the API, support for providing and accessing device and plugin information such as descriptions, version, manufacturer, etc. The addition is aimed mainly at providing more information to user interfaces using OpenCAN.

The Testbench application received a major update. The user interface was given an overhaul so that multiple send and receive windows can be opened at one time, which alone makes sending different messages much easier. Now you can also set up multiple receive windows for watching different devices and messages by specifying a filter based on the message id and data for each window, or simply show all received messages. These updates make Testbench a much more useful tool for CAN networking with or without OpenCAN.

You can download the latest version of OpenCAN from the OpenCAN website.