- Kubelets perform fewer unnecessary pod status update operations on the API server. ([#88591](https://github.com/kubernetes/kubernetes/pull/88591), [@smarterclayton](https://github.com/smarterclayton)) [SIG Node and Scalability]

- The scheduler now scores fewer than all nodes in every scheduling cycle. This can improve performance of the scheduler in large clusters. ([#66733](https://github.com/kubernetes/kubernetes/pull/66733), [@bsalamat](https://github.com/bsalamat)) Courtesy of SIG Scheduling

- External facing API podresources is now available under k8s.io/kubelet/pkg/apis/ ([#92632](https://github.com/kubernetes/kubernetes/pull/92632), [@RenaudWasTaken](https://github.com/RenaudWasTaken)) [SIG Node and Testing]
- Fewer candidates are enumerated for preemption to improve performance in large clusters. ([#94814](https://github.com/kubernetes/kubernetes/pull/94814), [@adtac](https://github.com/adtac))

- Updated creation of `LoadBalancer` services, for there to be fewer AWS security group rules in most cases. ([#112267](https://github.com/kubernetes/kubernetes/pull/112267), [@sjenning](https://github.com/sjenning))

- kubeadm commands now print warnings if input YAML documents contain unknown or duplicate fields.
- kubeadm now properly recognizes Docker 18.09.0 and newer, but still treats 18.06 as the default supported version.
- kubeadm now automatically sets the `--pod-infra-container-image` flag when starting the kubelet.

### SIG IBM Cloud

Other notable changes include:
* CoreDNS replaces kube-dns as the default DNS provider

## Deprecations and Removals
- `kubeadm.k8s.io/v1beta1` has been deprecated, you should update your config to use newer non-deprecated API versions. ([#83276](https://github.com/kubernetes/kubernetes/pull/83276), [@Klaven](https://github.com/Klaven))

### Other (Cleanup or Flake)

## Changelog since v1.33.0

## Changes by Kind

### Bug or Regression

- Check for newer resize fields when deciding recovery feature's status in kubelet ([#131437](https://github.com/kubernetes/kubernetes/pull/131437), [@gnufied](https://github.com/gnufied)) [SIG Storage]

* kubeadm 1.8 now properly handles upgrades from to 1.7.x to newer release in 1.7 branch ([#53338](https://github.com/kubernetes/kubernetes/pull/53338), [@kad](https://github.com/kad))