Difference between PTZ Controller v2 and v3

Features	PTZ Controller 2.9	PTZ Controller v3
Interface
Protocols	Pelco, Sony, Canon, Bosh, Panasonic WV, Samsung, LG, AD, LiLin, ERNA	Pelco, Sony, Canon, Bosh, Panasonic WV/AW, Samsung, LG, AD, LiLin, ERNA, Hitachi, Cohu, Eagle PT
Connection	One COM Port	Multiple COM Ports
PTZ Control	Pan, Tilt, Zoom, Focus, Iris	Pan, Tilt, Zoom, Focus, Iris Auto/Manual switch for Focus and Iris
Auto Scan	One track	Multiple Auto Scan tracks
Joystick Control	Joystick Plug-in needs to be installed	Built-in Joystick plug-in
Remote Control	None	Send HTTP Request via web browser
Custom Function	For send custom data	For send custom data For Camera For AUX Functions For Auto Scan For Run Application For System Function
Update & Support	No more	Continuous