What's the difference between monitoring Mule 3.x vs. 4.x?
Mule 3.x: Monitors Applications, Connectors, Endpoints (inbound/outbound), Server instances. Remote Actions: Start/Stop Apps, Start/Stop Connectors, Connect/Disconnect Endpoints, Restart Servers. Mule 4.x: Monitors Applications, Flows (new in 4.x), Server instances (Connectors/Endpoints consolidated into Flows). Remote Actions: Start/Stop Apps, Start/Stop Flows (on-prem only, not CloudHub), Restart Servers (on-prem only). Key difference: Mule 4.x simplified architecture—Flows replace Connectors/Endpoints as monitoring unit.