* Configurable etcd compaction frequency in GCE ([#59106](https://github.com/kubernetes/kubernetes/pull/59106), [@wojtek-t](https://github.com/wojtek-t))
* [GCE] Apiserver uses `InternalIP` as the most preferred kubelet address type by default. ([#59019](https://github.com/kubernetes/kubernetes/pull/59019), [@MrHohn](https://github.com/MrHohn))

- Changed how KMS v2 encryption at rest can generate data encryption keys.

- Kubernetes juju charms will now use CSI for ceph. ([#66523](https://github.com/kubernetes/kubernetes/pull/66523), [@hyperbolic2346](https://github.com/hyperbolic2346))
- kubeadm uses audit policy v1 instead of v1beta1 ([#67176](https://github.com/kubernetes/kubernetes/pull/67176), [@charrywanganthony](https://github.com/charrywanganthony))

    - https://github.com/kubernetes/kubernetes/issues/92272
    - https://github.com/kubernetes/kubernetes/issues/92250
  
    To address this, the new debian-hyperkube-base image (v1.1.0) uses the
    debian-iptables base image (v12.1.0), which includes iptables-wrapper, a

    - https://github.com/kubernetes/kubernetes/issues/92272
    - https://github.com/kubernetes/kubernetes/issues/92250
  
    To address this, the new debian-hyperkube-base image (v1.1.0) uses the
    debian-iptables base image (v12.1.0), which includes iptables-wrapper, a

* [fluentd-gcp addon] Switch to the image provided by Stackdriver. The Stackdriver Logging Agent container image uses fluentd v0.14.25. ([#59128](https://github.com/kubernetes/kubernetes/pull/59128), [@bmoyles0117](https://github.com/bmoyles0117))

## Non-user-facing Changes

* Prevent kubelet from getting wedged if initialization of modules returns an error. ([#59020](https://github.com/kubernetes/kubernetes/pull/59020), [@brendandburns](https://github.com/brendandburns))
* [GCE] Apiserver uses `InternalIP` as the most preferred kubelet address type by default. ([#59019](https://github.com/kubernetes/kubernetes/pull/59019), [@MrHohn](https://github.com/MrHohn))

- Added CEL runtime cost calculation into ValidatingAdmissionPolicy, matching the evaluation cost
  restrictions that already apply to CustomResourceDefinition.
  If rule evaluation uses more compute than the limit, the API server aborts the evaluation and the
  admission check that was being performed is aborted; the `failurePolicy` for the ValidatingAdmissionPolicy

- Base-images: Update to debian-iptables:buster-v1.4.0
  - Uses iptables 1.8.5
  - base-images: Update to debian-base:buster-v1.3.0
  - cluster/images/etcd: Build etcd:3.4.13-2 image
    - Uses debian-base:buster-v1.3.0 ([#98401](https://github.com/kubernetes/kubernetes/pull/98401), [@pacoxu](https://github.com/pacoxu)) [SIG Testing]

### SIG Network

The main milestones for SIG Network this release are the graduation of IPVS-based load balancing and CoreDNS to general availability.

IPVS is an alternative approach to in-cluster load balancing that uses in-kernel hash tables rather than the previous iptables approach, while CoreDNS is a replacement for kube-dns for service discovery.

### SIG Node