# Rolling Updates Upgrading and modifying a k8s cluster often requires the replacement of nodes. To not cause loss of service and other disruptions a kops uses a functionality call rolling updates. Rolling a cluster is the replacement of the masters and nodes with new cloud instances. ![Rolling Update Diagram](/docs/development/images/rolling-update.png?raw=true "Rolling Updates Diagram") `kops` executes steps 2-4 for all the masters until the masters are replaced. Then the same process is followed to replaces all nodes.