Not much to it, but there is a new firmware update for the Garmin Edge 530 (9.73)/830 (9.73)/1030 (13.73)/1030 Plus (6.73) cycling computers. The only really notable thing is that it appears to fix an issue with Firstbeat stats. I don’t think I’ve run into this one personally, but it would suck to have all that data reset when the device power cycles.
Nothing to do except sync the device with your phone or PC (via Garmin Express). I have been running the pre-9.73 on my 530 without any problems, so I was quick to install this one with Garmin Express. No weirdness noticed so far.