What is the new network update change all about ?

I keep getting these emails and notices about a new updated Cox network to be installed in my neighborhood. What are they going to do ? Is it truly a upgrade to help with the upload speeds ?

They are going to be hanging door notices 2 days before starting on mine, and my service will be down for 4 hours or longer. I am in Norman, Ok. Anyone else getting this type of notice and know what it is going to help us with ? I have 1 gig speed. The only thing I can think of is upload help.

Thanks,

Glen