Version 2.67.0.312 is ready. You only need to press the button: “Update” or you need to install the software again. One important Feature is the IFC4 export.
Download it:
Or use Windows Menu and search for: “BIM HVCATool Client Updater”:

Or use BIM HVACTool Projekt Manager. The button is deselected if the software can not find any update.
