Recently I discovered this great page on the FileMaker Inc. site that I thought would be useful to many. The above screenshot is just the top part of this long table on the FileMaker Site that goes back to FileMaker Pro 5.5 amazingly enough.
Since individuals and firms often have Macs and PCs of different vintages, it might take some time to figure out if any computers need to be replaced or updated to accommodate a particular version of FileMaker Pro. In my case most of my clients are Mac-based, but lots of the firms I work with have at least one PC somewhere and they want to use it too.
Since I need this information, I copied and formatted the information into an Apple note in my FileMaker folder, so I could always have access to it. I hope you find this table helpful too. You could always just stash the URL above somewhere handy like I did at the top of my Apple Note.