Ok, I'm in the same boat as @samrichardsam and @marcofiorini. Helix Floor was on 2.90, updated today to 2.92, then updated HX Edit to 3.0. Upon launching HX Edit 3.0, it indicates Helix Floor is 2.92 (correct):
Note absence of "Check for updates in lower right. OK.... click on the icon, tab to View, click Check for Updates button. Utter fail - "Your floor device is up to date with firmware version 2.92":
I'm about to try the Updater route. Thanks @datacommando for that suggestion. However, your statement that "No need to report to Line 6, because so far, everyone that I have pointed to this information has managed to successfully perform and update to version 3 of the Firmware." seems pretty absurd to me. Obviously, there are multiple accounts of people running up against this problem. Manifestly, the standard update process is not working as intended for some subset of the user population. Most germanely, Line 6 cannot correct a defect of which they are unaware. OF COURSE it should be reported to Line 6.
With that off my chest, I'm off to try the Updater route. Wish me luck.
(Mac OS X 10.10.5)