1.9.1 release highlightsedit

New and notableedit

New and notable changes in version 1.9.1 of Elastic Cloud on Kubernetes. See Elastic Cloud on Kubernetes version 1.9.1 for the full list of changes.

Mitigate CVE-2021-44228 in vulnerable Elasticsearch clustersedit

This release introduces a preemptive measure to mitigate Log4Shell vulnerability in Elasticsearch versions below 7.2.

Known issuesedit

  • On Openshift versions 4.6 and below, upon installing/upgrading to 1.9.[0,1], the operator will be stuck in a state of Installing within the Openshift UI, and seen in a CrashLoopBackoff within Kubernetes because of Webhook certificate location mismatches. More information and work-around can be found in the issue.