The Gira S1 Windows Client 1.4.0.151 can only be used in combination with a Gira S1 V6.1. Please use the Gira S1 Windows Client 1.3.0.133 for the Gira S1 V5.x and V4.x.
New functions
Support for the new Gira S1 firmware version 6.1.
Support for ETS remote maintenance of KNX Secure systems.
Adaptation of the Gira HomeServer Expert default ports.