The Space Launch System, which recently secured funding from Congress, uses many features that were developed from the Shuttle program, including the first-stage engines and boosters, and it's overall design looks strikingly similar to the Saturn-V launch vehicle. Obviously this is fine because these technologies have been proven to work.
What are the capabilities or technical differences between the SLS boosters and those used by the Shuttle? The wiki page describes the boosters used by the SLS, but I would like to know more about what the upgrades are.