Kris Osborn
Senior Air Force officials said the service is working vigorously to speed up development and integration of new software engineered to widen the threat envelope of the mission data files to enable the now operational F-35 to better identify specific enemy threats.
The Air Force is accelerating development of a special, high-tech, on-board threat library for the F-35 designed to precisely identify enemy aircraft operating in different high-risk areas around the globe - such as a Chinese J-20 stealth fighter or Russian T-50 PAK FA 5th Gen fighter, service leaders said.
http://nationalinterest.org/blog/the-buzz/russian-chinese-jets-will-be-no-match-the-f-35-after-upgrade-22964