# Release 2.12.0

### Breaking Changes

*   Build, Compilation and Packaging

- Kube-proxy now supports DualStack feature with EndpointSlices and IPVS. ([#85246](https://github.com/kubernetes/kubernetes/pull/85246), [@robscott](https://github.com/robscott))
- Remove redundant API validation when using Service Topology with externalTrafficPolicy=Local ([#85346](https://github.com/kubernetes/kubernetes/pull/85346), [@andrewsykim](https://github.com/andrewsykim))

  gci-beta-55-8872-47-0:
  Date:           Nov 11, 2016
  Kernel:         ChromiumOS-4.4
  Kubernetes:     v1.4.5
  Docker:         v1.11.2
  Changelog (vs 55-8872-18-0)
    * Cherry-pick runc PR#608: Eliminate redundant parsing of mountinfo
    * Updated kubernetes to v1.4.5

- Added a redundant process to remove tracking finalizers from Pods that belong to Jobs. The process kicks in after the control plane marks a Job as finished. ([#119944](https://github.com/kubernetes/kubernetes/pull/119944), [@Sharpz7](https://github.com/Sharpz7))

- Kubeadm: fixed a bug during kubeadm upgrade, where it is not possible to mount a new device and create a symbolic link for /etc/kubernetes...

- Introduced new metrics removing the redundant subsystem in kube-apiserver pod logs metrics and deprecate the original ones:
  - kube_apiserver_pod_logs_pods_logs_backend_tls_failure_total becomes kube_apiserver_pod_logs_backend_tls_failure_total

  - Fix an error where existing nodes were not considered as destinations while finding place for pods in scale-down simulations
  - Remove redundant log lines and reduce severity around parsing kubeEnv
  - Don't treat nodes created by virtual kubelet as nodes from non-autoscaled node groups
  - Remove redundant logging around calculating node utilization
  - Add configurable `--network` and `--rm` flags for docker in `Makefile`

  `ServiceIPStaticSubrange`, and `EndpointSliceTerminatingCondition`. ([#117237](https://github.com/kubernetes/kubernetes/pull/117237), [@yulng](https://github.com/yulng))
- Removed `KUBECTL_EXPLAIN_OPENAPIV3` which is already redundant. ([#119286](https://github.com/kubernetes/kubernetes/pull/119286), [@ardaguclu](https://github.com/ardaguclu))

  - Fix an error where existing nodes were not considered as destinations while finding place for pods in scale-down simulations
  - Remove redundant log lines and reduce severity around parsing kubeEnv
  - Don't treat nodes created by virtual kubelet as nodes from non-autoscaled node groups
  - Remove redundant logging around calculating node utilization
  - Add configurable `--network` and `--rm` flags for docker in `Makefile`

- Optimized log output to avoid printing out redundant information of the pod. ([#124055](https://github.com/kubernetes/kubernetes/pull/124055), [@yangjunmyfm192085](https://github.com/yangjunmyfm192085))