There are two ways to determine if you the latest version.

#1 - Attempt to install the latest version using option #1 on the upgrade page. If you have the latest you will be told so.

#2 - Determine your version number and then download the latest version from The download will have the version number contained within the file name. The version number is generated from the date. So if the version number and the file name match then you have the latest version. For example, currently the download file name is "HicSetup_2012_0828.exe". After you install it, your version number will be 2012-0828.

These two approaches may give different answers because the newest version is usually released only for users using the auto-update feature. And then after several days without any problems, the new version is released on the website.