After updating to stunnel-5.43.1, stunnel no longer responds in any way, no error messages and any indication of an attempted connection.  I tried it both on a cubie truck and a raspberry pi 2.  Previously, these systems had been running for years.  Part of the update including systemd-235.38-2 which had some new firewall warnings.  Netstat shows stunnel listening on the ports that are specified in the configuration file.
Any hints about where to go would be appreciated.
			
		