Forti Client VPN download previous releases

How to find previous releases of FortiClient VPN

From my experiences, I got stuck to find appropriate link to download version 6.4.0 through google search (may be my bad to do appropriate search).

But finally I found one solution that is interesting for me, and also want to share with you if you face same problem like me! there you should find list of available files to be downloaded, just use related path of your desired file with current url. For my case, it was