* Don't log private SSH key ([#24506](https://github.com/kubernetes/kubernetes/pull/24506), [@timstclair](https://github.com/timstclair))
* Incremental improvements to kubelet e2e tests ([#24426](https://github.com/kubernetes/kubernetes/pull/24426), [@pwittrock](https://github.com/pwittrock))

- Changed metadata management for Pods to populate `.metadata.generation` on writes. New pods will have a `metadata.generation` of 1; updates to mutable fields in the Pod `.spec` will result in `metadata.generation` being incremented by 1. ([#130181](https://github.com/kubernetes/kubernetes/pull/130181), [@natasha41575](https://github.com/natasha41575)) [SIG Apps, Node and Testing]

  clock desync. ([#118922](https://github.com/kubernetes/kubernetes/pull/118922), [@champtar](https://github.com/champtar))
- `plugin_evaluation_total` metric supports prescore/score extension point.
  The metric doesn't get incremented when the prescore/score plugin has nothing to do with an incoming pod. ([#118025](https://github.com/kubernetes/kubernetes/pull/118025), [@AxeZhan](https://github.com/AxeZhan))

### Documentation

- Fixed issue with incremental id generation for `loadbalancer` and `endpoint` in `kubeproxy` mock test framework. ([#120723](https://github.com/kubernetes/kubernetes/pull/120723), [@princepereira](https://github.com/princepereira))

- EndpointSlice generation is now incremented when labels change. ([#99750](https://github.com/kubernetes/kubernetes/pull/99750), [@robscott](https://github.com/robscott)) [SIG Network]

- New plugin_evaluation_total is added to the scheduler.This metric counts how many times the specific plugin affects the scheduling result. The metric does not get incremented when the plugin has nothing to do with an incoming Pod. ([#115082](https://github.com/kubernetes/kubernetes/pull/115082), [@sanposhiho](https://github.com/sanposhiho))

- etcd: Built image for `v3.5.11`.
   ([#122233](https://github.com/kubernetes/kubernetes/pull/122233), [@mzaian](https://github.com/mzaian))

### SIG Cluster Lifecycle

SIG Cluster Lifecycle focused on improving kubeadm’s user experience by including a set of new commands related to maintaining the kubeadm configuration file, the API version of which has now has been incremented to `v1alpha2`. These commands can handle the migration of the configuration to a newer version, printing the default configuration, and listing and pulling the required container images for bootstrapping a cluster.

- Fixes conversion error in multi-version custom resources that could cause metadata.generation to increment on no-op patches or updates of a custom resource. ([#88995](https://github.com/kubernetes/kubernetes/pull/88995), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

For the 1.8 release, SIG Node continued to focus
on a broad set of workload types, including hardware and performance
sensitive workloads such as data analytics and deep learning. The SIG also
delivered incremental improvements to node reliability.

[SIG Node]: https://github.com/kubernetes/community/tree/master/sig-node

### SIG Network