## Changelog since v1.23.0

## Major Themes

### Dockershim Removed from kubelet

After its deprecation in v1.20, the dockershim component has been removed from the kubelet.
From v1.24 onwards, you will need to either use one of the other [supported runtimes](https://kubernetes.io/docs/setup/production-environment/container-runtimes/) (such as containerd or CRI-O)

- Hyperkube will now be available in a new Github repository and will not be included in the kubernetes release from 1.17 onwards ([#83454](https://github.com/kubernetes/kubernetes/pull/83454), [@dims](https://github.com/dims))

  by default. The CSI drivers can make use of the `secretRef` values passed in `NodeExpansion`
  request optionally sent by the CSI Client from this release onwards. ([#121303](https://github.com/kubernetes/kubernetes/pull/121303), [@humblec](https://github.com/humblec))

- kubeadm now automatically sets the `--pod-infra-container-image` flag when starting the kubelet.

### SIG IBM Cloud

- Revised error handling for port forwards to Pods. Added stream resets preventing port-forward from blockage. ([#128681](https://github.com/kubernetes/kubernetes/pull/128681), [@soltysh](https://github.com/soltysh)) [SIG API Machinery, CLI and Testing]

- Fixed a bug in block volume expansion. ([#77317](https://github.com/kubernetes/kubernetes/pull/77317), [@gnufied](https://github.com/gnufied))
- Count PVCs that are unbound towards attach limit. ([#73863](https://github.com/kubernetes/kubernetes/pull/73863), [@gnufied](https://github.com/gnufied))

### VMware

  arguments exists, e.g. `kubectl create subcommand arg`. ([#124123](https://github.com/kubernetes/kubernetes/pull/124123), [@sttts](https://github.com/sttts))
- Ensured daemonset controller counts old unhealthy pods towards max unavailable budget. ([#123233](https://github.com/kubernetes/kubernetes/pull/123233), [@marshallbrekka](https://github.com/marshallbrekka))

        * Switch to the official image of Kibana in fluentd-elasticsearch addon
        * Use StatefulSet for Elasticsearch instead of ReplicationController, with persistent volume claims
        * Require authenticating towards Elasticsearch, as Elasticsearch 5.5 by default requires basic authentication

### SIG-windows

SIG Windows focused on stability and reliability of our existing feature set. We primarily fixed bugs as we march towards a near future stable release.

## Action Required

- etcd2 as a backend is deprecated and support will be removed in Kubernetes 1.13.

### Bug or Regression

- Ensure daemonset controller to count old unhealthy pods towards max unavailable budget ([#127774](https://github.com/kubernetes/kubernetes/pull/127774), [@ncdc](https://github.com/ncdc)) [SIG Apps]