In upgrading to MKE 3.6.x, be aware that MKE 3.6.0 runs a version of etcd that is older than the version Mirantis includes with MKE 3.5.8. As such, MKE 3.5.8 can only be upgraded to MKE 3.6.1 or later.

The etcd component, by design, will not accept a downgrade of itself.

Release date




MKE 3.5.8

Patch release for MKE 3.5 introducing the following key features:

  • Enablement of read-only root filesystem for select MKE containers

  • Health checks added to ucp-sf-notifier container

  • The ucp-kube-ingress-controller container now runs as non-root

  • The ucp-sf-notifier container now runs as non-root

  • The ucp-hardware-info container now runs as non-root

  • k8s components are non-root