Kibana Build details:

VERSION: 8.16.0 BC3
BUILD: 79556
COMMIT: f02d1303b5230c357ac7e4c49c8adadd5f66af38

Preconditions:

1. 8.16.0-BC3 Kibana cloud environment should be available.
2. Lower version say 7.17.25 or 8.15.3 agent should be installed.

Steps to reproduce:

1. Navigate to Fleet>Agents tab.
2. Observe info logging level is selected.
3. Upgrade agent to latest 8.16.0 BC3.
4. Observe debug level log is generated on successful upgrade:
   [elastic_agent][debug] received state: HEALTHY:Running
5. Observe same logs are generated multiple times.

Expected Result:
Debug level agent logs should not be generated on upgrading linux agent to 8.16.0 BC3 when info logging level is selected.

Screenshot:

Agent Logs:
elastic-agent-diagnostics-2024-11-04T05-16-32Z-00.zip