What are the key features and improvements of Canon's latest camera released in 2016?

Canon's latest camera released in 2016, the Canon EOS 5D Mark IV, features a 30.4-megapixel full-frame sensor, 4K video recording, improved autofocus system, built-in Wi-Fi and GPS, and a touchscreen LCD. Key improvements include better low-light performance, faster continuous shooting speed, and enhanced dynamic range.