Bundesliga, Germany's second tier of its football league system.
They were replaced by VfL Bochum and Hertha BSC who finished 17th and 18th respectively in the 2009–10 Bundesliga season.
Liga champions VfL Osnabrück and runners-up FC Erzgebirge Aue.
Augsburg lost in their promotion play-off against 16th placed Bundesliga team 1.
Fortuna Düsseldorf increased the capacity of their Esprit Arena from 51,500 to 54,400 by converting some seating areas into standing terraces.
Also, the stadia of SpVgg Greuther Fürth and MSV Duisburg were renamed due to new naming rights contracts.