I successfully upgraded my v4 hardware's firmware from 4.8.0 to 7.1.3, as well as the latest wifi firmware. Kodus to the team for maintaining backward compatibility!
Now, is there any difference between Ready and Sleeping modes other than in Sleeping I need to first get the device out of sleep in order to initiate a charge? Any difference in idle power consumption? I have a habit of putting my gadget in sleep mode when not in use. Not sure if I should keep doing this for OpenEVSE. I do not use timer by the way. I am not sure if OpenEVSE ever enters sleep mode by itself after a period of inactivity.
There is no difference in idle power consumption.
Sleep prevents the vehicle from charging immediately. It is either entered manually or by the timer anytime the time is outside the charge window.