3.8.0

Release date	Name	Highlights
2024-DEC-04	MKE 3.8.0	Initial MKE 3.8.0 release introducing the following key features and enhancements: Updated Kubernetes to version 1.31.1. Added the ingress_extra_args.default_backend_service MKE configuration setting for NGINX Ingress Controller.

Important

Upgrading to MKE 3.8.0 from MKE 3.7.x can cause your containers to restart, due to the hash calculation rule that was introduced in Kubernetes 1.31. As such, Mirantis recommends that you use the phased in-place cluster upgrade method or the blue-green deployment upgrade method to avoid the simultaneous containers restarts that the automated in-place cluster upgrade method can cause to occur in all nodes.

• New features
• Enhancements
  • [MKE-12023] Kubernetes 1.31.1
  • [FIELD-7338] Addition of NGINX Ingress Controller configuration setting
• Addressed issues
• Known issues
  • [FIELD-7023] Air-gapped swarm-only upgrades fail if images are inaccessible
  • [MKE-11535] ucp-nvidia-gpu-feature-discovery pods may enter CrashLoopBackOff state
  • [MKE-11531] NodeLocal DNS Pods attempt to deploy to Windows nodes
  • [MKE-11525] Kubelet node profiles fail to supersede global setting
  • [MKE-10152] Upgrading large Windows clusters can initiate a rollback
  • [MKE-9699] Ingress Controller with external load balancer can enter crashloop
  • [MKE-8662] Swarm only manager nodes are labeled as mixed mode
  • [MKE-8914] Windows Server Core with Containers images incompatible with GCP
  • [MKE-8814] Mismatched MTU values cause Swarm overlay network issues on GCP
  • [MKE-12030] MKE telemetry setting overrides key/value in daemon.json
  • [FIELD-7469] storage_expt_enabled set to true prevents kubelet start up
• Major component versions
• Security information