DC/OS 2.0.2 was released on 30 January 2020.

WARNING: The DC/OS 1.13.9 release includes a data format change for the persisted dcos-net state that, if you upgrade to release 2.0.2, can cause critical issues with dcos-net. Because of this, we recommend upgrading to release 2.0.4 or higher.

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Release summary

DC/OS is a distributed operating system that enables you to manage resources, application deployment, data services, networking, and security in an on-premise, cloud, or hybrid cluster environment.

Fixed and Improved Issues in DC/OS 2.0.2

• Upgraded Java to version 8u232 to align with previous DC/OS releases. (DCOS-62548, COPS-5738)

Marathon

• Marathon will now bundle multiple concurrent authentication requests for the same identity to a single request, reducing thundering-herd effects on the underlying DC/OS authentication infrastructure. (DCOS-62006)
• DC/OS now shows resident pod instances in /v2/pods/::status when they transition to “unknown”, or any other task status that may cause them to be excluded. (MARATHON-8710)

Admin Router

• Fixed an issue where, after upgrade to DC/OS 2.0, adminrouter-agent was failing to start on older CPUs that were missing SSE 4.2. (DCOS_OSS-5643)