*   Upgraded to go1.9. ([#51375](https://github.com/kubernetes/kubernetes/pull/51375),[ @cblecker](https://github.com/cblecker))
*   Add-on manager now supports HA masters. ([#55466](https://github.com/kubernetes/kubernetes/pull/55466),[ #55782](https://github.com/x13n),[ @x13n](https://github.com/x13n))

* Kubeadm now includes CoreDNS version 1.6.5 ([#85108](https://github.com/kubernetes/kubernetes/pull/85108), [@rajansandeep](https://github.com/rajansandeep))
    *  - `kubernetes` plugin adds metrics to measure kubernetes control plane latency.
    *  -  the `health` plugin now includes the `lameduck` option by default, which waits for a duration before shutting down.

wales

// walmart : Wal-Mart Stores, Inc.
// https://www.iana.org/domains/root/db/walmart.html
walmart

// walter : Sandvik AB
// https://www.iana.org/domains/root/db/walter.html
walter

// wang : Zodiac Wang Limited
// https://www.iana.org/domains/root/db/wang.html
wang

// wanggou : Amazon Registry Services, Inc.

- disableAvailabilitySetNodes is added to avoid VM list for VMSS clusters. It should only be used when vmType is "vmss" and all the nodes (including masters) are VMSS virtual machines. ([#87685](https://github.com/kubernetes/kubernetes/pull/87685), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

* Fix scheduler cache panic when updating pod conditions. ([#56733](https://github.com/kubernetes/kubernetes/pull/56733), [@bsalamat](https://github.com/bsalamat))
* Set route_localnet on nodes & masters in GCE ([#55004](https://github.com/kubernetes/kubernetes/pull/55004), [@ihmccreery](https://github.com/ihmccreery))

  - kubelet <= v1.19.14

**Fixed Versions**:
  - kubelet v1.22.2
  - kubelet v1.21.5
  - kubelet v1.20.11
  - kubelet v1.19.15

This vulnerability was reported by Fabricio Voznika and Mark Wolters of Google.

**CVSS Rating:** High (8.8) [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

## Changes by Kind

### Feature

- Kubelet(dra): correctly handles multiple ResourceClaims...

* When using client or server certificate rotation, the Kubelet will no longer wait until the initial rotation succeeds or fails before starting static pods.  This makes running self-hosted masters with rotation more predictable. ([#58930](https://github.com/kubernetes/kubernetes/pull/58930), [@smarterclayton](https://github.com/smarterclayton))

- Fixed `creationTimestamp: null` causing unnecessary writes to etcd. ([#116865](https://github.com/kubernetes/kubernetes/pull/116865), [@alexzielenski](https://github.com/alexzielenski))

* **the `gce` provider ensures the bootstrap admin token user is included in the super-user group ([#39537](https://github.com/kubernetes/kubernetes/pull/39537), [@liggitt](https://github.com/liggitt))**
* Remove support for debian masters in GCE kube-up. ([#41666](https://github.com/kubernetes/kubernetes/pull/41666), [@mikedanese](https://github.com/mikedanese))