In the line-up today are two new Decos, three new stores and a multitude of bug fixes and interface changes. The new Decos to be added to ZooMumba are the Bonfire and the Swan Pond. However, the Swan Pond cannot be purchased by players; it must be won in the Zoowheel like the Panthers. You will also have the opportunity to build a souvenir shop, cotton candy stands or a milk bar.
The changes to the interface will streamline certain aspects of ZooMumba and make game play simpler. The messaging system has had a new User ID option to find and add friends using not just their name but their User ID as well. You can now send messages through a drop-down list to other players using just their User ID, too.
Changes to the inventory and cages in ZooMumba are also going to be introduced with the updates. You will be able to sell items in your inventory and when a cage is moved into the inventory, you will be able to separate the animals per male/female to decide how many you’d like to put back in.
Source: ZooMumba homepage