To apply the update, Maxis will bring down all servers for a "few hours" beginning at 1 p.m. PDT that day.
"Choosing a time to issue a major update is never easy, but after looking our peak player time, we’ve concluded 1 p.m. PDT is the best window for us to make these improvements," Maxis wrote in the SimCity forums.
Update 2.0 for SimCity will change up the game so that Mayors will "drive their fancy cars to work" and take their helicopters, limos, or sports cars if the modules are present. It also color-corrects when in colorblind mode.
The update also aims to fix a number of bugs, the first of which has to do with issues related to cities not processing. Update 2.0 also speeds up the rate at which invitations are sent and received, addresses "unexplained fluctuation of tourists," and tunes casinos so gambling will be more profitable, among other tweaks.
For the full list of additions and tweaks coming to SimCity with Update 2.0, check out the forum post.