Steps to reproduce:

1. Use agent key: agent.version to populate inventory
2. Run agent - check version returned
3. Stop agent
4. Run agent2 - chcek version returned

Result:
Both agents return the same ie. 5.0.6

Expected:

If I'm using inventory to collect such information then I only get version ie. 5.0.6 But I want to know it is a 5.0.6 old agent or 5.0.6 new agent.

Maybe new agent should return 5.0.6(v2) or something like that to know agent type from Zabbix (without additonal work/scripts).

It will help manage agents. Now I can't make a report from inventory to know where new and where old agent is run.