RT-AC68U reports new f/w but no download visible

I have an RT-AC68U which is at firmware level 3.0.0.4.380_3831 and it is reporting new firmware available. I looked at the download site and the latest firmware shown is the same as what I have. I allowed the router to check for new firmware and it comes back and tells me it has 3.0.0.4_380_4118-g7f117e6 available for download. It seems strange that the firmware is available by one method but not the other.

Should I...

RT-AC68U reports new f/w but no download visible