meshConfig defaultConfig tracing

istio version 1.9.x
Install/upgrade with istioctl version 1.9.3

Below meshConfig cause
warnning: 2021-04-16T10:27:41.711779Z info warning: destination for tracing is a table. Ignoring non-table value

  meshConfig:
     defaultConfig:
       tracing:
         zipkin:
           address: "jaeger-collector.monitoringbackend.svc.cluster.local:9411"

Install/upgrade work without any warnning in version 1.8.3. But not in versions 1.9.x

is above meshconfig not correct? otherwise can we ignore this warning ?