* Enhance CNI plugin compatibility, supports flannel, calico, weave and so on.
  * Pass all CRI validation conformance tests and node end-to-end conformance tests.
  * Add experimental Unikernel support.

* [alpha] [cri-containerd](https://github.com/kubernetes-incubator/cri-containerd): CRI implementation for containerd is now v1.0.0-alpha.0, [[@Random-Liu](https://github.com/Random-Liu)]

* add more logging for azure disk diagnostics ([#70012](https://github.com/kubernetes/kubernetes/pull/70012), [@andyzhangx](https://github.com/andyzhangx))
* Scheduling conformance tests related to daemonsets should set the annotation that relaxes node selection restrictions, if any are set. This ensures conformance tests can run on a wider array of clusters. ([#68793](https://github.com/kubernetes/kubernetes/pull/68793), [@aveshagarwal](https://github.com/aveshagarwal))

* AWS kube-up: Authorize route53 in the IAM policy ([#27794](https://github.com/kubernetes/kubernetes/pull/27794), [@justinsb](https://github.com/justinsb))
* Allow conformance tests to run on non-GCE providers ([#26932](https://github.com/kubernetes/kubernetes/pull/26932), [@aaronlevy](https://github.com/aaronlevy))

* Third Party Resource tests in the e2e suite were incorrectly marked as part of the conformance bucket.  They are alpha and are not required for conformance. ([#52823](https://github.com/kubernetes/kubernetes/pull/52823), [@smarterclayton](https://github.com/smarterclayton))

    *   Added ARM64 release. Upgraded to CNI 0.6.0, added block device as Pod volume mode. Fixed CNI plugin compatibility.
    *   Passed all CRI validation conformance tests and node end-to-end conformance tests.
*   [alpha] [rktlet](https://github.com/kubernetes-incubator/rktlet): CRI implementation for the rkt runtime is now v0.1.0. [[@iaguis](https://github.com/iaguis)]

* Scheduling conformance tests related to daemonsets should set the annotation that relaxes node selection restrictions, if any are set. This ensures conformance tests can run on a wider array of clusters. ([#68793](https://github.com/kubernetes/kubernetes/pull/68793), [@aveshagarwal](https://github.com/aveshagarwal))

- kubeadm: support fetching configuration from the original cluster for `upgrade diff` ([#80025](https://github.com/kubernetes/kubernetes/pull/80025), [@SataQiu](https://github.com/SataQiu))

* StatefulSet controllers no longer force a resync every 30 seconds when nothing has changed. ([#75622](https://github.com/kubernetes/kubernetes/pull/75622), [@jonsabo](https://github.com/jonsabo))
* Ensures the conformance test image saves results before exiting when ginkgo returns non-zero value. ([#76039](https://github.com/kubernetes/kubernetes/pull/76039), [@johnSchnake](https://github.com/johnSchnake))