The topic KNX has been redesigned. The changes in the distributor structure concern the selection and configuration of circuits. The are considered in its specific aspects here:
Of course you can open your existing projects in version 8 and continue working on them. For KNX, it is generally possible to combine new and old technology. You can either add old or new technology for your KNX circuits (see circuit layouts and article database for more information). Consider the following possibilities and limitations: