Merge pull request #85316 from xenolinux/runc-to-crun

OSDOCS#12332: OCP 4.18 and later use crun for worker nodes

Author: xenolinux

hosted_control_planes/hcp-machine-config.adoc

@@ -10,6 +10,11 @@ In a standalone {product-title} cluster, a machine config pool manages a set of
 
 In {hcp}, the `MachineConfigPool` CR does not exist. A node pool contains a set of compute nodes. You can handle a machine configuration by using node pools.
 
+[NOTE]
+====
+In {product-title} 4.18 or later, the default container runtime for worker nodes is changed from runC to crun.
+====
+
 include::modules/configuring-node-pools-for-hcp.adoc[leveloffset=+1]
 
 include::modules/node-tuning-hosted-cluster.adoc[leveloffset=+1]