Introduction Design goals TerminologyListenersNetwork (L3/L4) filtersHTTP filtersgRPCOld style WebSocket supportService discoveryConnection poolingOutlier detectionTLSRuntime configurationTCP proxyMongoDBRedisDynamic configurationDrainingExternal Authorization Deployment types Service to service plus front proxy nginxAWS ELBFinaglegRPCnghttp2 Reporting security vulnerabilities 1.8.0 (Oct 4, 2018)1.6.0 (March 20, 2018)1.4.0 (August 24, 2017)1.2.0 (March 7, 2017)