The bare metal machine types from the C3 machine series are now generally

## Feature Feature The bare metal machine types from the [C3 machine series](https://cloud.google.com/compute/docs/general-purpose-machines#c3%5Fseries) are now generally available with GKE clusters. You can now provision machine types such as`c3-standard-192-metal` in Standard mode with any available GKE version. To use these machine types with Autopilot mode, ComputeClasses, and node pool auto-creation, you must specify the exact machine type using a custom ComputeClass and use GKE version 1.35.3-gke.1389000 or later. ## Change Change GKE version 1.35.1-gke.1031000 and later include the following changes to [automatically created firewall rules for Services](https://docs.cloud.google.com/kubernetes-engine/docs/concepts/firewall-rules#service-fws): * Changes the priority of multiple existing firewall rules for Services from `1000` to `999`. * Creates additional firewall rules to deny traffic that is not explicitly allowed by other auto-created firewall rules. If you use custom firewall rules to override GKE firewall rules for Services, these changes might cause unexpected behavior. Before you upgrade your clusters to version 1.35.1-gke.1031000 or later, do the following: * If you have custom firewall rules that allow or deny traffic with a priority of `1000`, change the priority of those rules to a numerically lower value (such as `999` or lower) to maintain their precedence. * Verify that the new auto-created deny rules do not block required traffic for load balancers that use external IP addresses.