- Known issue: fixed that the PreEnqueue plugins aren't executed for Pods proceeding to activeQ through backoffQ. ([#117194](https://github.com/kubernetes/kubernetes/pull/117194), [@sanposhiho](https://github.com/sanposhiho)) [SIG Release and Scheduling]

#### Extensibility

- The community has been asking for continuing support of extensibility, so this cycle features more work around CRDs and API Machinery. Most of the enhancements in this cycle were from SIG API Machinery and related areas.

### Extensibility around core Kubernetes APIs

#### CustomResourceDefinitions Pruning

* When performing a GET then PUT, the kube-apiserver must write the canonical representation of the object to etcd if the current value does not match. That allows external agents to migrate content in etcd from one API version to another, across different storage types, or across varying encryption levels. This fixes a bug introduced in 1.5 where we unintentionally stopped writing the newest data. ([#48394](https://github...

- Known issue: fixed that the PreEnqueue plugins aren't executed for Pods proceeding to activeQ through backoffQ. ([#117194](https://github.com/kubernetes/kubernetes/pull/117194), [@sanposhiho](https://github.com/sanposhiho)) [SIG Release and Scheduling]

* Fix cluster autoscaler addon permissions so it can access batch/job. ([#69858](https://github.com/kubernetes/kubernetes/pull/69858), [@losipiuk](https://github.com/losipiuk))
* Add tolerations for Stackdriver Logging and Metadata Agents. ([#69737](https://github.com/kubernetes/kubernetes/pull/69737), [@qingling128](https://github.com/qingling128))

text-indent: -999px;\n    cursor: pointer;\n    background-color: $carousel-indicator-active-bg;\n    background-clip: padding-box;\n    // Use transparent borders to increase the hit area by 10px on top and bottom.\n    border-top: $carousel-indicator-hit-area-height solid transparent;\n    border-bottom: $carousel-indicator-hit-area-height solid transparent;\n    opacity: .5;\n    @include transition($carousel-indicator-transition);\n  }\n\n  .active {\n    opacity: 1;\n  }\n}\n\n\n// Optional captions\...

text-indent: -999px;\n    cursor: pointer;\n    background-color: $carousel-indicator-active-bg;\n    background-clip: padding-box;\n    // Use transparent borders to increase the hit area by 10px on top and bottom.\n    border-top: $carousel-indicator-hit-area-height solid transparent;\n    border-bottom: $carousel-indicator-hit-area-height solid transparent;\n    opacity: .5;\n    @include transition($carousel-indicator-transition);\n  }\n\n  .active {\n    opacity: 1;\n  }\n}\n\n\n// Optional captions\...