If you run the legacy version of IMatch 3.4 and you want to upgrade to IMatch 3.6 or later the information below will be helpful.
If you still run IMatch 3.4 you have skipped two major upgrades and your IMatch version is four years out-of-date. The PDF document below contains an overview of the major changes between your version and the current product line.
If you run IMatch 3.5 or earlier you will have to upgrade your database the new new format used by IMatch 3.6 and later. This procedure is easy and needs to be done only once. See the PDF document for details.