Xantrex XW6048 Firmware

Where do I check to find what version of firmware I am running with my XW6048?

I hope this isn't too dumb of a question (it's right in front of my nose but I don't see it). I just looked at my inverter and didn't see any reference to firmware revision, but maybe I'm caffeine deficient and overlooked it. I also tried to look through the control panel a little, but I couldn't see any reference to firmware revision. My inverter has a build date of October 20, 2010.

I'm guessing I have an older revision of the firmware (maybe v.5), and I'm not sure what has changed since the latest version 7. I was having some issues with Gen Support, but programming for this might not be any different in the most recent firmware. At this point, I'm just curious. I read some that it opened up the qualification specs on AC2 for generator input, but I don't know if there was anything else significant or worth considering an upgrade. My inclination is: "if it's not broke, then don't fix it". I don't want to brick something as big as the XW6048.