* Bump up version number of debian-base, debian-hyperkube-base and debian-iptables.  ([#67026](https://github.com/kubernetes/kubernetes/pull/67026), [@satyasm](https://github.com/satyasm))
    * Also updates dependencies of users of debian-base.
    * debian-base version 0.3.1 is already available.

## Downloads for v1.6.13


filename | sha256 hash
-------- | -----------
[kubernetes.tar.gz](https://dl.k8s.io/v1.6.13/kubernetes.tar.gz) | `effda17f63d149f1082e85cf5e5bc41b1f5f9bf64e082020c4455ce2e4525e26`
[kubernetes-src.tar.gz](https://dl.k8s.io/v1.6.13/kubernetes-src.tar.gz) | `0552eb170d276c8dc33a66629da9641fd333813c353a2e741593c9acf81d39fd`

### Client Binaries

filename | sha256 hash
-------- | -----------

- Omit nil or empty field when calculating container hash value to avoid hash changed. For a new field with a non-nil default value in the container spec, the hash would still get changed. ([#57741](https://github.com/kubernetes/kubernetes/pull/57741), [@dixudx](https://github.com/dixudx))

* Bump up version number of debian-base, debian-hyperkube-base and debian-iptables.  ([#67026](https://github.com/kubernetes/kubernetes/pull/67026), [@satyasm](https://github.com/satyasm))
    * Also updates dependencies of users of debian-base.
    * debian-base version 0.3.1 is already available.

- The `Dockerfile` for the kubectl image has been updated with the addition of a specific base image and essential utilities (bash and jq). ([#119592](https://github.com/kubernetes/kubernetes/pull/119592), [@rayandas](https://github.com/rayandas))

## Changes by Kind

### Feature

- Kubernetes is now built with Golang 1.16.10 (#106224, @cpanato) [SIG Cloud Provider, Instrumentation, Release and Testing]
- Update debian-base, debian-iptables, setcap images to pick up CVE fixes
  - Debian-base to v1.9.0
  - Debian-iptables to v1.6.7
  - setcap to v2.0.4 (#106147, @cpanato) [SIG Release and Testing]

### Failing Test

- Now users can get object info like:

  ```bash
    a. kubectl get pod test-pod -o custom-columns=CONTAINER:.spec.containers[0:3].name
    b. kubectl get pod test-pod -o custom-columns=CONTAINER:.spec.containers[-2:].name
  ```

## Changelog since v1.20.12

## Changes by Kind

### Feature

- Update debian-base, debian-iptables, setcap images to pick up CVE fixes
  - Debian-base to v1.9.0
  - Debian-iptables to v1.6.7 (#106148, @cpanato) [SIG Release and Testing]

### Failing Test

* Bump up version number of debian-base, debian-hyperkube-base and debian-iptables.  ([#67026](https://github.com/kubernetes/kubernetes/pull/67026), [@satyasm](https://github.com/satyasm))
    * Also updates dependencies of users of debian-base.
    * debian-base version 0.3.1 is already available.

- Component-base: make the validation logic about LeaderElectionConfiguration consistent between component-base and client-go ([#111758](https://github.com/kubernetes/kubernetes/pull/111758), [@SataQiu](https://github.com/SataQiu)) [SIG API Machinery and Scheduling]