tlder@devKubernetes 1.35 requires cgroups v2 for container resource management
tlder@dev:~$
Platform/Kubernetes/CNCF

Kubernetes 1.35 requires cgroups v2 for container resource management

  • Shipped
  • Action required
  • Breaking change
  • High importance

With Kubernetes 1.35 now the current stable release, cgroups v2 is required for all container resource management operations. Clusters or nodes still running on cgroups v1 will not be supported, requiring operators to migrate before upgrading. The release also promotes Dynamic Resource Allocation (DRA) binding conditions to beta, unlocking easier handling of specialized hardware for AI and ML workloads. This cgroups v2 mandate is a meaningful breaking change for teams running older Linux distributions or node images that default to cgroups v1. Operators must audit node OS versions and kernel configurations ahead of any 1.35 upgrade. The DRA beta promotion is a positive signal for platform teams building GPU or accelerator-backed inference infrastructure, reducing the friction of device plugin management.