To celebrate his new deal, check out Yaya's City highlights so far in pictures...
NEW KIDS ON THE BLOCK: Yaya was one of the four new signings unveiled in 2010.
FIRST APPEARANCE: The Ivorian makes his City debut against Spurs in August 2010.
FIRST OF MANY: The midfield general celebrates his first goal for the Blues at Wigan in September 2010.
DERBY DAY DELIGHT: The goal that sealed City's 1-0 win against Manchester United in the 2011 FA Cup semi-final.
SUPER STRIKE: Our number 42 caps off an impressive debut campaign with this winner in the 2011 FA Cup final.
FIRST TROPHY: Yaya gets his hands on the FA Cup final after notching the winner at Wembley.
ON THE WAY: Yaya runs off to celebrate after he scores against Newcastle in May 2012 to set up THAT game against QPR.
CONTRACT EXTENSION: Pictured with Txiki Begiristain after extending his previous deal in 2013.
CHRISTMAS CRACKERS: The two Toure brothers pictured filming for CityTV.
HALF CENTURY: Yaya notches his 50th goal for the Club against Fulham in March 2014.
PICK THAT OUT: The then 30-year old curls home an equaliser in the 2014 League Cup final against Sunderland.
2014 WINNERS: Dressing room celebrations after the 3-1 win against Sunderland.
LUNG BUSTING: Hammering home against Aston Villa in May 2014 after a powerful run from his own half.
DOING THE DOUBLE: Celebrating the 2014 Premier League title win with Manuel Pellegrini.
GETTING THE PARTY STARTED: Yaya starts the celebrations after he converted his penalty to win the 2016 League Cup final.
PRESENT DAY: Jumping for joy after putting City 3-0 up against West Brom in the penultimate game of the 2016/17 campaign.