Phew long posting!
OK, short version none of these are real issues
Long version follows
Throttling, the warning means at some point since power on, this was seen as an issue, but is no longer hitting the threshold - that would say error
Jeremy Curtis explained in another thread that the copper strands in the cable can start to degrade over time, but I dont think you are having a problem here
Http messages, you can ignore, its our overly verbose messaging, by any chance when upgrading, did you manually copy the config fikes across ?
Finally squawk codes, if the modeA squawk is also a valid modeC alt code, I print that as well, purely used for info purposes, I think this is documented
Thx
Lee