What is "upgrades"

Usage examples of "upgrades".

In the process of updating website to include upgrades as well as new illustrations.

Four, my lady, from your Ship Yard, with some alterations and upgrades for naval use.

The letter from the insurance company said that numerous upgrades had been done inside and that would help in selling the place, but you had to actually get people to go inside, to call the number on the sign.

Carlie Held had installed her first dollie-slots and BOSRAM, had implanted her brainworm and rigged most of the later upgrades and improvements to the mixed system.