yes, 15 added the additional feature for certificate testing, but previous versions did not have it.
Essentially FMP 15 is the only one that allows you to "override" certificate messages.
Thanks mikebeargie. I guess the odd thing is that 12-14 do not give you any information about the situation and they simply will show no files on the server. When trying to connect to an open file you get an error that the file does not exist on the server.
This behavior still exits when SSL is not required in the server admin. At least it is fixed in 15. Took me a few minutes to track down what was going on exactly.