* Change references to gs://kubernetes-release/ci ([#28193](https://github.com/kubernetes/kubernetes/pull/28193), [@zmerlynn](https://github.com/zmerlynn))
* Build: Add KUBE_GCS_RELEASE_BUCKET_MIRROR option to push-ci-build.sh ([#28172](https://github.com/kubernetes/kubernetes/pull/28172), [@zmerlynn](https://github.com/zmerlynn))

* etcd version 2.2.1
  * etcd version 3.0.14 [has also been validated](https://k8s-gubernator.appspot.com/builds/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-etcd3/) but does require [specific configuration steps](https://coreos.com/blog/migrating-applications-etcd-v3.html)

## Changelog since v1.5.0-beta.3

### Other notable changes

"tom", "tomuto", "mít", "nic", "proto", "kterou", "byla", "toho", "protože", "asi", "ho", "naši", "napište", "re", "což", "tím", "takže", "svých", "její", "svými", "jste", "aj", "tu", "tedy", "teto", "bylo", "kde", "ke", "pravé", "ji", "nad", "nejsou", "či", "pod", "téma", "mezi", "přes", "ty", "pak", "vám", "ani", "když", "však", "neg", "jsem", "tento", "článku", "články", "aby", "jsme", "před", "pta", "jejich", "byl", "ještě", "až", "bez", "také", "pouze", "první", "vaše", "která", "nás", "nový", "tipy",...

"tom", "tomuto", "mít", "nic", "proto", "kterou", "byla", "toho", "protože", "asi", "ho", "naši", "napište", "re", "což", "tím", "takže", "svých", "její", "svými", "jste", "aj", "tu", "tedy", "teto", "bylo", "kde", "ke", "pravé", "ji", "nad", "nejsou", "či", "pod", "téma", "mezi", "přes", "ty", "pak", "vám", "ani", "když", "však", "neg", "jsem", "tento", "článku", "články", "aby", "jsme", "před", "pta", "jejich", "byl", "ještě", "až", "bez", "také", "pouze", "první", "vaše", "která", "nás", "nový", "tipy",...

* - kubeadm now supports "ci/latest-1.8" or "ci-cross/latest-1.8" and similar labels. ([#49119](https://github.com/kubernetes/kubernetes/pull/49119), [@kad](https://github.com/kad))

For detailed release notes on the three alpha features from SIG AWS, please refer to the following Changelogs:

- Kubeadm: update references to legacy artifacts locations, the `ci-cross` prefix has been removed from the version match as it does not exist in the new `gs://k8s-release-dev` bucket. ([#103813](https://github.com/kubernetes/kubernetes/pull/103813), [@SataQiu](https://github.com/SataQiu))

* Set Dashboard UI version to v1.1.0 ([#27869](https://github.com/kubernetes/kubernetes/pull/27869), [@bryk](https://github.com/bryk))

### Other notable changes

* Build: Add KUBE_GCS_RELEASE_BUCKET_MIRROR option to push-ci-build.sh ([#28172](https://github.com/kubernetes/kubernetes/pull/28172), [@zmerlynn](https://github.com/zmerlynn))

### Other (Cleanup or Flake)

- Kubeadm: change the default image repository for CI images from 'gcr.io/kubernetes-ci-images' to 'gcr.io/k8s-staging-ci-images' ([#97087](https://github.com/kubernetes/kubernetes/pull/97087), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

* Add /bin/mkfifo symlink to bazel build for busybox, so that CI builds have /bin/tee ([#59268](https://github.com/kubernetes/kubernetes/pull/59268), [@justinsb](https://github.com/justinsb))