Samsung GALAXY Tab 10.1 to Android 4.0.4. It also gives us a new Quick Panel to help you get to driving mode faster. Pinch-to-zoom has been added in the main menu and in certain home screens emails can now be searched for under date, sender or title. While writing an email, you have two new options which are undo and redo. The photo gallery app has been re-done so that pictures can be resized, rotated and cropped. The browser now allows you to view pages in desktop mode and as on the Apple iPhone, the rather basic calculator becomes a super scientific calculator when you turn your tablet to landscape. For the rest of the specs, go to the sourcelink.
The update will take 10 to 15 minutes during which time, you cannot use your tablet. When your device has received the update, you will receive a notification. Since it's an OTA update, you merely follow the directions by pressing download and the updating will begin.
source: Verizon via Phandroid