Chatted with FusionSilicon support for a bit, they said that the new version of firmware is being tested and will be available on their web site soon.

It's important to note that there are at least 2 control boards V3 and V4. Version 4 has SSH locked out "for security reasons" according to support. The latest version is 4.18 for the version 4 control boards and they would not supply me with a file download. You cannot install a version 4 firmware on the version 3 boards and vise versa according to support.