We are not supporting older versions of CAT4 any more and you will receive an error message if you try to log on to an outdated version of CAT4: Supported (September 2018 with 4.12.1 being the : CAT4 V4.14 November 2018 CAT4 V4.13 October 2018 CAT4 V4 latest version)V 4.12.1 V 4.12 September 2018 CAT4 V4V 4.11 July 2018 |