The SimCity Blog has details on a new patch Maxis has released for SimCity to update the urban-planning game to version 4.0. This re-enables some of the features shut down when the game was put on life-support after launch woes along with new features and new content. Here are the patch notes:

• New: SimCity Launch Park, an exclusive new park just for our dedicated fans who were early adopters.
• New: Region: Edgewater Bay. Seven city sites in one cluster around a beautiful bay with one great work site.
• New: Your current server will now be shown in the options menu.
• New: More detailed rollover information on buildings telling player’s if their Sims received happiness from a park or from shopping. Previous to this fix, this information was generic.
• Re-Enabled Feature: Global Market prices now dynamically change during gameplay.
• Re-Enabled Feature: Leaderboards will be active on EU West 3, Pacific 1 and Pacific 2 at the release. We will enable them on additional servers throughout the day.
• Re-Enabled Feature: Region filters are now enabled on all SimCity servers. Players will be able to search for open games by Map Name, Sandbox Mode, and Abandoned Cities.
• Rain Clouds: Fixed an issue where some cities would not have rain clouds to replenish their water table. If you had a city with this issue, you will start seeing clouds again within a game day.
• Fire: Improved response time of fire trucks to fires. Improved the time it takes for a fire signal to reach a fire station.
• Mission updates: Tuned Metals HQ and Community College missions. These were appearing too early, making them difficult to complete. They now appear later in a city’s development.
• Solar Farm Great Work: Reduced fire risk at the Solar Farm Great work. Local fire engines were spending too much time at the Solar Farm.
• Messaging: Improved pre-requisite messaging for Trade Port, Casinos, Smelting Factory and Oil Refinery. It should be clearer on how to unlock these buildings.
• Graphics: Fix for flickering low wealth buildings on NVIDIA graphics cards.
• Education: Fix for an issue some cities experienced where commuting students did not return from a neighbor’s city. This was causing a problem where students would disappear from a city in some cases.
• Tuning: Sims will lose a small amount of happiness if they don’t have a place to shop. Cities without places to shop will see complaints and feel the effect of unhappy Sims. This will emphasize the importance of commercial zones.