v.4.0.2.1
	- Update SDK version to v4.0.2.2
	- Add firmware upgrade function for network device models

v.4.0.2.0
	- Update SDK version to v4.0.2.0
	- Release version

v.4.0.1.6
	- Update SDK version to v4.0.1.6
	- Fixed other errors

v.4.0.1.5
	- Update SDK version to v4.0.1.5
	- Optimize the statistical methods of fps
	- Fixed other errors

v.4.0.1.4
	- Update SDK version to v4.0.1.4
	- Optimize Support for CS40

v.4.0.1.3
	- Update SDK version to v4.0.1.3
	- Support for CS40

v.4.0.1.2
	- Update SDK version to v4.0.1.2
	- Optimize Support CS20-P

v.4.0.1.1
	- Update SDK version to v4.0.1.1
	- Support for CS20-P

v.4.0.1.0
	- Update SDK version to v4.0.1.0
	- Release version

v.4.0.0.19
	- Update SDK version to v4.0.0.7
	- Add log file
	- Fixed other errors

v.4.0.0.18
	- Update SDK version to v4.0.0.6
	- Optimize the depth window's display
	- Optimize the logic of windows's layout
	- Fixed other errors

v.4.0.0.17
	- Update SDK version to v4.0.0.5
	- Improve multilingual support
	- Fixed other errors

v.4.0.0.16
	- Update SDK version to v4.0.0.4
	- Fixed the logic of windows's layout and moving
	- Add the logic of device's hotplug 
	- Fixed other errors

v.4.0.0.15
	- Update SDK version to v4.0.0.3
	- Optimize the logic of video start
	- Fixed other errors

v.4.0.0.14
	- Update SDK version to v4.0.0.2
	- Optimize the UI
	- Fixed other errors

v.4.0.0.13
	- Update SDK version to v4.0.0.1
	- Fixed integral time issues
	- Fixed other errors

v.4.0.0.12
	- Fixed errors in v4.0.0.0

v.4.0.0.0
	- Rebuild the application
	- Update SDK version to v4.0.0.0