[Q] Just bought a used G3, several questions? topic

I need some info about a used Verizon g3 I purchased. Everything works fine, but I can't see where to check if the latest software is updated?
When I go to the phone info area, there's no tab to touch to check.

Does that mean this phone has been rooted? Excuse me.... I'm a newbie.... don't really know how to distinguish between rooted and non rooted.

How would I ever update the phone? Does Verizon do it automatically?

I'm grandfathered in with unlimited data and can tether freely with this phone, a surprise to me.
Would I compromise this with any Verizon updates?

Thx