- Pods will now post their readiness during termination. ([#110418](https://github.com/kubernetes/kubernetes/pull/110418), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]

### Dockershim deprecation

Docker as an underlying runtime is being deprecated. Docker-produced images will continue to work in your cluster with all runtimes, as they always have.
The Kubernetes community [has written a blog post about this in detail](https://blog.k8s.io/2020/12/02/dont-panic-kubernetes-and-docker/) with [a dedicated FAQ page for it](https://blog.k8s.io/2020/12/02/dockershim-faq/).

### External credential provider for client-go

- Take the context as the first argument of Schedule. ([#82119](https://github.com/kubernetes/kubernetes/pull/82119), [@wgliang](https://github.com/wgliang))
- Implement `post-filter` extension point for scheduling framework ([#78097](https://github.com/kubernetes/kubernetes/pull/78097), [@draveness](https://github.com/draveness))

- Kubeadm: ensure `image-pull-timeout` flag is respected during upgrade phase ([#90328](https://github.com/kubernetes/kubernetes/pull/90328), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]
- Kubeadm: fix a bug where post upgrade to 1.18.x, nodes cannot join the cluster due to missing RBAC ([#89537](https://github.com/kubernetes/kubernetes/pull/89537), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

- Pods will now post their readiness during termination. ([#110417](https://github.com/kubernetes/kubernetes/pull/110417), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]

- Pods will now post their readiness during termination. ([#110416](https://github.com/kubernetes/kubernetes/pull/110416), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]

- Implement the scheduling framework with `Reserve`, `Prebind`, `Permit`, `Post-bind`, `Queue sort` and `Unreserve` extension points.
([#77567](https://github.com/kubernetes/kubernetes/pull/77567), [@wgliang](https://github.com/wgliang))

    `--enforce-node-allocatable=””`
  * Hard Eviction Thresholds will be subtracted from Capacity while calculating
    Node Allocatable. This will result in a reduction of schedulable capacity in
    clusters post upgrade where kubelet hard eviction has been turned on for
    memory. To opt-out set `--experimental-allocatable-ignore-eviction=true`.
  * More details on these feature here:

- '`CSIMigrationvSphere` was upgraded to GA and locked to true. Do not upgrade to K8s
  1.26 if you need Windows, or XFS, or raw block support until vSphere CSI Driver
  adds support for them in a version post v2.7.x.'
   ([#113336](https://github.com/kubernetes/kubernetes/pull/113336), [@divyenpatel](https://github.com/divyenpatel))
- '`DelegateFSGroupToCSIDriver` feature is GA.'

* If CSINodeInfo and CSIMigration feature flags are active in the cluster, Kubelet will post NotReady until CSINode is initialized with basic volume plugin mechanism information for well-known drivers ([#74835](https://github.com/kubernetes/kubernetes/pull/74835), [@davidz627](https://github.com/davidz627))