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1. Access to all nodes of the cluster through one of the following methods
   - Rancher
   - SSH protocol
   - AWS Session Manager

2. The K3s version tag you wish to upgrade to: https://github.com/k3s-io/k3s/releases

3. The system-upgrade-controller file that will be used to upgrade the K3s cluster:
   https://assets.master.k3s.getvisibility.com/system-upgrade-controller/v0.10.0/system-upgrade-controller.yaml

4. The Bundle file for the K3s upgrade in the Air-Gap Environment

5. Make sure you push all new docker images to the ECR gv-public docker registry that you need to install the new k3s version. See here Securing K3s /wiki/spaces/GS/pages/293011459

Focus/Synergy services

Updates and custom settings are automatically applied to all backend services using Fleet as long as the cluster has access to the public internet and can connect to the management server.

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