Overview and Call to Action While critical advisories are not typical blog topics, protecting customer environments and preventing unexpected data loss is our top priority. We are leveraging every communication channel available to ensure platform and infrastructure administrators are aware of a critical upgrade prerequisite. If you run vSphere Supervisor or VMware vSphere Kubernetes Service … Continued The post CRITICAL ADVISORY: Pre-Upgrade Verification Required for vSphere Supervisor and VKS Environments Upgrading to vCenter 9.1.0 or 9.1.1 appeared first on VMware Blogs .