## Changelog since v1.27.0

## Urgent Upgrade Notes 

### (No, really, you MUST read this before you upgrade)

- Action required for the custom scheduler plugin developers. 
  Here's the breaking change in `EnqueueExtension` in the scheduling framework. 

## Changelog since v1.16.0-alpha.1

### Action Required

* Revert "scheduler.alpha.kubernetes.io/critical-pod annotation is removed. Pod priority (spec.priorityClassName) should be used instead to mark pods as critical. Action required!" ([#80277](https://github.com/kubernetes/kubernetes/pull/80277), [@draveness](https://github.com/draveness))

    - [Action Required](#action-required-4)
    - [Other notable changes](#other-notable-changes-20)
- [v1.7.0-alpha.3](#v170-alpha3)
  - [Downloads for v1.7.0-alpha.3](#downloads-for-v170-alpha3)
    - [Client Binaries](#client-binaries-21)
    - [Server Binaries](#server-binaries-21)
    - [Node Binaries](#node-binaries-21)
  - [Changelog since v1.7.0-alpha.2](#changelog-since-v170-alpha2)
    - [Action Required](#action-required-5)

    - [Action Required](#action-required-3)
    - [Other notable changes](#other-notable-changes-12)
- [v1.14.0-alpha.2](#v1140-alpha2)
  - [Downloads for v1.14.0-alpha.2](#downloads-for-v1140-alpha2)
    - [Client Binaries](#client-binaries-15)
    - [Server Binaries](#server-binaries-15)
    - [Node Binaries](#node-binaries-15)
  - [Changelog since v1.14.0-alpha.1](#changelog-since-v1140-alpha1)

## Changes by Kind

### Deprecation

- Action-required: kubeadm: graduate the "kubeadm alpha certs" command to a parent command "kubeadm certs". The command "kubeadm alpha certs" is deprecated and will be removed in a future release. Please migrate. ([#94938](https://github.com/kubernetes/kubernetes/pull/94938), [@yagonobre](https://github.com/yagonobre)) [SIG Cluster Lifecycle]

## Changelog since v1.15.0-beta.1

### Action Required

* ACTION REQUIRED: The deprecated flag --conntrack-max has been removed from kube-proxy. Users of this flag should switch to --conntrack-min and --conntrack-max-per-core instead. ([#78399](https://github.com/kubernetes/kubernetes/pull/78399), [@rikatz](https://github.com/rikatz))

    - [Action Required](#action-required-2)
    - [Other notable changes](#other-notable-changes-20)
- [v1.6.0-beta.1](#v160-beta1)
  - [Downloads for v1.6.0-beta.1](#downloads-for-v160-beta1)
    - [Client Binaries](#client-binaries-18)
    - [Server Binaries](#server-binaries-18)
  - [Changelog since v1.6.0-alpha.3](#changelog-since-v160-alpha3)
    - [Action Required](#action-required-3)

- Suspend Job feature graduated to beta. Added the `action` label to Job controller sync metrics `job_sync_total` and `job_sync_duration_seconds`. ([#102022](https://github.com/kubernetes/kubernetes/pull/102022), [@adtac](https://github.com/adtac))

###  Introduced KMS v2

Introduce KMS v2alpha1 API to add performance, rotation, and observability improvements. Encrypt data at rest (ie Kubernetes `Secrets`) with DEK using AES-GCM instead of AES-CBC for kms data encryption. No user action is required. Reads with AES-GCM and AES-CBC will continue to be allowed. See the guide [Using a KMS provider for data encryption](https://kubernetes.io/docs/tasks/administer-cluster/kms-provider/) for more information.

stored in a secret and Zones feature is in use. Zone labels setup moved to KCM component, kubelet skips this step during startup in such case. If credentials stored in cloud-provider config file as plaintext current behaviour does not change and no action required. For proper functioning `kube-system:vsphere-legacy-cloud-provider` should be allowed to update node object if vCenter credentials stored in secret and Zone feature used. ([#101028](https://github.com/kubernetes/kubernetes/pull/101028), ...