Citation X+

In 2010, Cessna initiated a major update of the aircraft, initially dubbed the Citation Ten, which included upgraded AE3007C2 engines with new fans, Garmin G5000 flight displays with three 14-inch (36 cm) screens, and a heads-up display. The elliptical winglets that were available as an aftermarket option on the Citation X became standard, and a stretch of 38 cm was incorporated to improve passenger comfort. Due to a 1.4% improvement in Specific Fuel Consumption (SFC) and increased thrust, the Citation X+ can support an increase in payload of 97 kg, an increase in cruise speed at FL490 from 460 to 479 knots, and a range increase of 190 nmi (352 km).

First flight was completed on January 17, 2012. The height has been increased to 19 ft 3 in (5.85 m), length increased to 73 ft 7 in (22.43 m), wing span has been expanded to 69 ft 2 in (21.1 m), maximum takeoff weight has increased to 36,600 lb (16,602 kg), maximum cruise speed has increased to 527 knots (606 mph; 976 km/h) at FL350, and maximum range has increased to 3,242 nautical miles (3,731 mi; 6,004 km) (MTOW, Full Fuel, Optimal Climb and Descent, Mach 0.82 Cruise, FL450).