Only download older versions from Fortinet’s official support portal or a trusted corporate repository (e.g., your company’s internal file share).
While FortiClient supports Windows 10/11 and macOS Ventura+, older OSes like: forticlient vpn download older versions
Before we proceed, it's essential to note that using an outdated version of FortiClient VPN may pose security risks, as newer versions often include patches for known vulnerabilities and improve overall security. If possible, it's recommended to use the latest version of FortiClient VPN. older OSes like: Before we proceed