Changes are primarily seen in the added possibility to initialise a CAN FD communication and to read and transmit CAN FD messages afterwards. The handling remains the same (CAN_InitializeFD, CAN_ReadFD, CAN_WriteFD).
The development of this API version was focused on broad compatibility. Programmes that have been created with the previous API will work with the new DLL. Vice versa, new applications can be used with an older DLL, provided that no new features are involved. Regarding the device drivers for CAN interfaces, the interaction is ensured with the new FD-enabled driver (4.x) as well as with its predecessor (3.x).
In addition to the DLLs, the API package contains detailed documentation and programming examples for different languages. It is available free of charge via download from PEAK-System.