### Container Images

All container images are available as manifest lists and support the described
architectures. It is also possible to pull a specific architecture directly by
adding the "-$ARCH" suffix  to the container image name.

name | architectures
---- | -------------

- The deprecated mondo `kubernetes-test` tarball is no longer built. Users running Kubernetes e2e tests should use the `kubernetes-test-portable` and `kubernetes-test-{OS}-{ARCH}` tarballs instead. ([#83093](https://github.com/kubernetes/kubernetes/pull/83093), [@ixdy](https://github.com/ixdy))

### Scheduling

* AWS: Allow cross-region image pulling with ECR ([#24369](https://github.com/kubernetes/kubernetes/pull/24369), [@therc](https://github.com/therc))
* Automatically add node labels beta.kubernetes.io/{os,arch} ([#23684](https://github.com/kubernetes/kubernetes/pull/23684), [@luxas](https://github.com/luxas))

            The general family of the OS to be used to activate the profile, such as
            {@code windows} or {@code unix}.
          </description>
        </field>
        <field>
          <name>arch</name>
          <version>4.0.0+</version>
          <type>String</type>
          <description>The architecture of the operating system to be used to activate the
          profile.</description>
        </field>

    <alias type="application/vnd.debian.binary-package"/>
    <sub-class-of type="application/x-archive"/>
    <magic priority="60">
      <match value="!&lt;arch&gt;\ndebian-binary" type="string" offset="0"/>
      <match value="!&lt;arch&gt;\ndebian-split" type="string" offset="0"/>
    </magic>
    <glob pattern="*.deb"/>
    <glob pattern="*.udeb"/>
  </mime-type>

        * `kubernetes.io/hostname`
        * `kubernetes.io/instance-type`
        * `kubernetes.io/os`
        * `kubernetes.io/arch`
        * `beta.kubernetes.io/instance-type`
        * `beta.kubernetes.io/os`
        * `beta.kubernetes.io/arch`
        * `failure-domain.kubernetes.io/zone`
        * `failure-domain.kubernetes.io/region`
        * `failure-domain.beta.kubernetes.io/zone`

* GC pod ips ([#35572](https://github.com/kubernetes/kubernetes/pull/35572), [@bprashanth](https://github.com/bprashanth))
* Stop including arch-specific binaries in kubernetes.tar.gz ([#35737](https://github.com/kubernetes/kubernetes/pull/35737), [@ixdy](https://github.com/ixdy))

- kubelet
  - The `beta.kubernetes.io/os` and `beta.kubernetes.io/arch` labels, deprecated since v1.14, are targeted for removal in v1.18.
  - The `--containerized` flag, deprecated since v1.14, will be removed in a future release.

hear oneself speak--and they don't seem to have any rules in
particular; at least, if there are, nobody attends to them--and
you've no idea how confusing it is all the things being alive;
for instance, there's the arch I've got to go through next
walking about at the other end of the ground--and I should have
croqueted the Queen's hedgehog just now, only it ran away when it
saw mine coming!'

* The Kubelet's --enable-custom-metrics flag is now marked deprecated. ([#54154](https://github.com/kubernetes/kubernetes/pull/54154), [@mtaufen](https://github.com/mtaufen))
* Use multi-arch busybox image for e2e ([#54034](https://github.com/kubernetes/kubernetes/pull/54034), [@dixudx](https://github.com/dixudx))