Hi Konstantin,
The identity agent can be distributed/updated by the following means:
1) Distribution of the msi via group policy or another software distribution system (sccm etc)
2) Captive Portal - you have the option of directing users to a captive portal to obtain the latest version of the agent and they install manually.
3) Configure the Identity Awareness blade to check for agent upgrades. This is dependant on the hardware and OS platform used as the SMB appliances do have some limitations.
If you can advise on the setup (hardware/software) we can advise accordingly.
Identity Awareness R80.10 Administration Guide
Regards
Mark