Release Notes for 1.11.6

Release notes for DC/OS 1.11.6

DC/OS 1.11.6 was released on September 25, 2018.

DC/OS 1.11.6 includes the following components:

Notable Changes in DC/OS 1.11.6

Customer Advisory

Issues Fixed in DC/OS 1.11.6


  • DCOS_OSS-3958/DCOS_OSS-3978 - Add information about /containers, /quota, /proc, and ps aux wwwto diagnostics bundle.

Data Services

  • COPS-3371/DCOS-38328 - Remove health check directories for Kafka 2.0.4-1.0.0.


  • DCOS-40779 - Fix movement of form control icons in the search bar.


  • DCOS-41198 - Replace poll_marathon_for_app_deployment() method with wait_for_deployments_complete() method in dcos-test-utils.
  • DCOS_OSS-4193 - Fix for Marathon not starting if the first DC/OS Master is down.
  • MARATHON-8095 - Fix PATCH call against inactive HA node.
  • MARATHON-8381 - Add new exit codes for Marathon.
  • MARATHON-8428 - Fix SSL readiness check with self-signed cert. Bump Marathon on 1.11.


  • COPS-3527/DCOS_OSS-3921 - Check cache when creating Mesos resources using
  • COPS-3574/DCOS-19598/DCOS-40317/DCOS-41375 - Bump Mesos to nightly 1.5.x dd68c0b.
  • DCOS-24595/DCOS_OSS-3991 - Add Mesos patches for per-framework metrics.
  • DCOS-40162 - Fix container launch failures that occurred due to Mesos-bridge running out of IPs.


  • COPS-3279/COPS-3576/DCOS-37703/DCOS-37703/DCOS-39703 - Fix erroneous values in service addresses stats and enable metrics forwarding.
  • COPS-3472/DCOS-38932 - Enable access to Marathon app via overlap network.
  • COPS-3540/COPS-3517/COPS-3774/DCOS-39203/DCOS-39517/DCOS-41358 - Fix delay in overlay configuration.
  • COPS-3585/COPS-3701/DCOS-38600/DCOS-42215 - Fix deadlock issue when SSL sockets simultaneously send/receive data.
  • COPS-3605/DCOS_OSS-3707 - Bump mesos-module to include the fix for CoreOS 1800.7.0.
  • DCOS_OSS-3697 - Fix connectivity issue between bridge and overlay networks.
  • DCOS-39707 - Fix clustering issues with etcd.
  • DCOS-40702 - Fix networking changes to support CoreOS v1800.7.0.


  • DCOS-40245 - Admin Router: Change the adminrouter_auth_cache_enabled configuration option default to true. Enterprise
  • DCOS_OSS-4107 - Bump ZooKeeper to 3.4.13.

Security Enterprise

  • DCOS-40374/DCOS-40391/DCOS-42192 - Add a new method called ensure_permissions that modifies service account permissions to match desired state.

Security Updates

  • DCOS_OSS-4105 - Update OpenSSL to version 1.0.2p.

Note: New Docker version is supported on CoreOS 1800.7.0. See compatibility matrix for further information.

About DC/OS 1.11

DC/OS 1.11 includes many new capabilities with a focus on:

  • Managing clusters across multiple clouds. Enterprise
  • Production Kubernetes-as-a-service.
  • Enhanced data security. Enterprise
  • Updated data services.

Provide feedback on the new features and services at:

New Features and Capabilities


  • Multi-region management - Enables a DC/OS Cluster to span multiple datacenters, clouds, and remote branches while providing a unified management and control cluster. View the documentation. Enterprise
  • Linked clusters - A cluster link is a unidirectional relationship between one cluster and another. You add and remove links from one cluster to another cluster using the DC/OS CLI. Once a link is set up, you can easily switch between clusters using the CLI or UI. View the documentation. Enterprise
  • Fault domain awareness - Use fault domain awareness to make your services highly available and to allow for increased capacity when needed. View the documentation. Enterprise
  • Decommission node - Support for permanently decommissioning nodes makes it easier to manage “spot” cloud instances, allowing for immediate task rescheduling. View the documentation
  • UCR


  • Edge-LB 1.0. View the documentation. Enterprise
  • IPv6 is now supported for Docker containers.
  • Performance improvements to the DC/OS network stack - All networking components (minuteman, navstar, spartan) are aggregated into a single systemd unit called dcos-net. Read this note to learn more about the re-factoring of the network stack.
  • The configuration parameter dns_forward_zones now takes a list of objects instead of nested lists (DCOS_OSS-1733). View the documentation to understand its usage.

Security Enterprise

  • Secrets Management Service
    • Secrets can now be binary files in addition to environment variables.
    • Hierarchical access control is now supported.



  • DC/OS Storage Service 0.1 (beta) - DSS users will be able to dynamically create volumes based upon profiles or policies to fine-tune their applications storage requirements. This feature leverages the industry-standard Container Storage Interface (CSI) to streamline the development of storage features in DC/OS by Mesosphere and our community and partner ecosystems. View the documentation.Enterprise
  • Pods now support persistent volumes. View the documentation.Beta

Note: Because these storage features are beta in 1.11, they must be explicitly enabled in the config.yaml file when installing DC/OS. Beta features are not recommended for production usage, but are a good indication of the direction the project is headed.

Updated DC/OS Data Services

  • TLS encryption for DC/OS Kafka, DC/OS Cassandra, DC/OS Elastic, and DC/OS HDFS is now supported. Enterprise
  • Fault domain awareness for DC/OS Kafka, DC/OS Cassandra, DC/OS Elastic and DC/OS HDFS. Use fault domain awareness to make your services highly available and to allow for increased capacity when needed. Enterprise
  • New API endpoint to pause a node for DC/OS Kafka, DC/OS Cassandra, DC/OS Elastic, and DC/OS HDFS. Use this endpoint to relaunch a node in an idle command state for debugging purposes.
  • New DC/OS Kafka ZooKeeper service. View the documentation.
  • You can now select a DC/OS data service version from a dropdown menu in the DC/OS UI.
  • Improved scalability for all DC/OS data services.