Few big company decided to make big change on their logo recently. Logo is the base of a company and it has to represent the whole company values. However, some of the most recognizable logo may have come from a design book and created new controversy, instead of the controversial logo changes.
Source: https://www.designweek.co.uk/instagram-drops-vintage-camera-logo-for-new-minimal-look/ Rebranding Instagram
Source: http://thehustle.co/airbnb-medium-beats-flipboard-logo AirBnB inspiration
Source: http://www.inc.com/justin-bariso/ubers-new-rebranding-reveals-everything-thats-wrong-with-uber.html Rebranding Uber
Source: https://www.digitalnewsasia.com/grabtaxi-now-grab-new-logo-and-app Grabtaxi Now Grab