- ACTION REQUIRED : In CoreDNS v1.7.0, [metrics names have been changed](https://github.com/coredns/coredns/blob/master/notes/coredns-1.7.0.md#metric-changes) which will be backward incompatible with existing reporting formulas that use the old metrics' names. Adjust your formulas to the new names before upgrading. 
  
  Kubeadm now includes CoreDNS version v1.7.0. Some of the major changes include:
  -  Fixed a bug that could cause CoreDNS to stop updating service records.

- Kubelet: changed `MemoryThrottlingFactor` default value to `0.9` and formulas to calculate `memory.high` ([#115371](https://github.com/kubernetes/kubernetes/pull/115371), [@pacoxu](https://github.com/pacoxu))

  
  Containers with memory requests equal to their memory limits also won't have
  swap access, and it is a way to opt-out of swap for a single container.
  
  The formula for the swap limit for Burstable QoS pods is:
  `(<memory-request>/<node-memory-capacity>)*<node-swap-capacity>`.