*   The Kubelet's feature gates are now specified as a map when provided via a JSON or YAML KubeletConfiguration, rather than as a string of key-value pairs, making them less awkward for users. ([#53025](https://github.com/kubernetes/kubernetes/pull/53025),[ @mtaufen](https://github.com/mtaufen))

##### **Other**

- In the `kubectl describe` output, the fields with names containing special characters are now displayed as-is without any pretty formatting, avoiding awkward outputs.  ([#75483](https://github.com/kubernetes/kubernetes/pull/75483), [@gsadhani](https://github.com/gsadhani))

  * Rescheduler relies on taints, which were changed in a backward incompatible way. Rescheduler 0.3 shipped together with Kubernetes 1.6 understands the new taints and will clean up the old annotations, but Rescheduler 0.2 shipped together with Kubernetes 1.5 doesn't understand the new taints. In order to avoid...

* Make kubelet ReadLogs backward compatible. ([#63268](https://github.com/kubernetes/kubernetes/pull/63268), [@Random-Liu](https://github.com/Random-Liu))

  It comes with an API change, a new delete option `ignoreStoreReadErrorWithClusterBreakingPotential` has
  been introduced, it is not set by default, this maintains backward compatibility.
  In order to perform an unsafe deletion of a corrupt resource, the user must enable the option for the delete

### Deprecation

### Feature

- 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:

- Updated google.golang.org/protobuf to `v1.33.0` to resolve `CVE-2024-24786`. ([#123758](https://github.com/kubernetes/ku...

  
  Having appropriate QueueingHintFn contributes to reducing useless retries and thus improves the overall scheduler's performance.
  
  **How can I migrate?**
  
  For backward compatibility, nil `QueueingHintFn` is treated as always returning QueueAfterBackoff. 
  So, if you want to just keep the existing behavior, you can register `ClusterEventWithHint` with no `QueueingHintFn` in it. 

* For Deployment, ReplicaSet, and DaemonSet, selectors are now immutable when updating via the new `apps/v1beta2` API. For backward compatibility, selectors can still be changed when updating via `apps/v1beta1` or `extensions/v1beta1`. ([#50719](https://github.com/kubernetes/kubernetes/pull/50719), [@crimsonfaith91](https://github.com/crimsonfaith91))