Following Adobe's acquisition of Macromedia and Flash in 2005, Adobe Flash underwent numerous updates, but issues with security, a loss of interest in Flash from creators and other factors contributed to Adobe Flash falling heavily out of favor. In 2010, Steve Jobs published his famous 'Thoughts on Flash' open letter which outlined his and Apple's issues with the Flash platform. The letter began a public feud between Jobs and Adobe's CEO, Shantanu Narayen. The fallout of the letter had widespread impacts and the following year, Adobe announced that it would no longer develop its Flash Player plug-in for mobile web browsers.