Changelog For official release notes for Docker Engine CE and Docker Engine EE, visit the release notes page. 19.03.4 (2019-10-17) Networking Rollback libnetwork changes so DOCKER-USER iptables chain is back. docker/engine#404 19.03.3 (2019-10-07) Known Issues DOCKER-USER iptables chain is missing docker/for-linux#810. Users cannot perform additional container network traffic filtering on top of t