[Environment] 
Knox Manage Client Application update.
Knox version: All
Model number: All
Android version: All

[Summary]
The IT admin can control when the Knox Manage client application installed on devices will be updated. 

[Resolution] 
You can update the EMM app remotely on devices using a device command. This can be found in the Knox Manage console under Devices & Users > Devices, then in one or more devices: Device command > EMM > Update system app.

[Related Articles]
http://contents-ap.manage.samsungknox.com/onlinehelp/en/index.html#page/OnlineTest%2FGroup1%2Femm_Appendix_C_Device_Command.html