Fios G1100 Router Manufacture date

[Disturbedspace]

I bought a FIOS G1100 Gigabite router from amazon however looking at the details on that it seems to be manufactured way back in 2014.

1. is there a way to know when the modem is actually manufactured?

2. will there be any performance differences b/w 2014/15 models and new one's provided by Verizon?

[CRobGauth]

Have not heard any issues with older G1100.
They all have the same spec as far as I know.

There were discussion on the Mi424 rotuers as having different revs but none on G1100.