* 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 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

    <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>

pkg time, const Friday Weekday
pkg time, const Hour Duration
pkg time, const January Month
pkg time, const July Month
pkg time, const June Month
pkg time, const Kitchen ideal-string
pkg time, const March Month
pkg time, const May Month
pkg time, const Microsecond Duration
pkg time, const Millisecond Duration
pkg time, const Minute Duration
pkg time, const Monday Weekday
pkg time, const Nanosecond Duration

pkg time, const Friday = 5
pkg time, const Hour = 3600000000000
pkg time, const January = 1
pkg time, const July = 7
pkg time, const June = 6
pkg time, const Kitchen = "3:04PM"
pkg time, const March = 3
pkg time, const May = 5
pkg time, const Microsecond = 1000
pkg time, const Millisecond = 1000000
pkg time, const Minute = 60000000000
pkg time, const Monday = 1
pkg time, const Nanosecond = 1

        * `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.

* 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))

  - the `--containerized` flag was deprecated in 1.14 and has been removed ([#80043](https://github.com/kubernetes/kubernetes/pull/80043), [@dims](https://github.com/dims))
  - the `beta.kubernetes.io/os` and `beta.kubernetes.io/arch` labels, deprecated since v1.14, are targeted for removal in v1.18.
  - cAdvisor json endpoints have been deprecated since 1.15. ([#78504](https://github.com/kubernetes/kubernetes/pull/78504), [@dashpole](https://github.com/dashpole))