The Ivory Coast international was a key figure in City's historic Premier League success last season, pipping rivals Manchester United to the title on an incredible final day of the season.
"We are ready to defend our title,' he said, speaking to the official programme for Sunday's FA Community Shield clash against Chelsea at Villa Park.
"Our captain and manager have agreed new long-term deals and it is important for this club to have stability at all levels.
"It means there will be no changes or disruption to what has proved a winning formula and for the long term, that can only be good for Manchester City.
"Now the manager can continue to build this club and plan for the future - let's not forget Sir Alex Ferguson has been at Manchester United for 25 years and they haven't done too badly over the years."