envoy.bootstrap.vcl (alpha) (contrib builds only)
envoy.filters.http.aws_lambda (alpha)
envoy.filters.http.language (alpha) (contrib builds only)
envoy.filters.http.tap (alpha)
envoy.filters.network.mysql_proxy (alpha) (contrib builds only)
envoy.filters.network.rocketmq_proxy (alpha) (contrib builds only)
envoy.filters.network.sip_proxy (alpha) (contrib builds only)
envoy.filters.sip.router (alpha) (contrib builds only)
envoy.filters.thrift.ratelimit (alpha)
envoy.matching.input_matchers.hyperscan (alpha) (contrib builds only)
envoy.tls.cert_validator.spiffe (alpha)
envoy.transport_sockets.tap (alpha)